Borehole · Risk register · free tier
apache/pulsar
Free reading: not for reliance
Borehole badge for apache/pulsar
1215da1 · 15,420 commits · 6,385 files
Issued 2026-11-03

Reads strong: 4 of 6 rated dimensions are strong, 2 are adequate and none is significant.

104 checks ran across 6 assessable dimensions. Security & Reliability Posture and Architecture & Codebase — including AI provenance are adequate. 10 findings, each with evidence. One dimension cannot be assessed without an acquirer.

What the repository says about itself
  • 04.62 Releases are cut from another branch than the one surveyed
  • states a policy on AI-generated contributions AGENTS.md:28
  • names Apache Software Foundation CONTRIBUTING.md:3
What this survey read. This commit may not be the product users run: The newest release, v5.0.1, is not on the branch this survey read; the newest release on it is v1.18. Read this report as describing that commit, not the release users run. Survey the release branch or tag as well.
An earlier reading. A newer reading of this repository exists. This one is kept because its verification code attests to it. Read the newest.
Published under today's rules. The verification code attests to this reading as it was stored. This page differs from it as follows.
  • 2 findings from checks Borehole's calibration found wrong more often than right are no longer published.
  • The file and line of 2 credential-shaped matches are withheld. File and line are shown to whoever GitHub says controls this repository, signed in, and to a buyer of this report.
strong adequate significant findings not assessable from a repository
Provenance disclosure does not affect any rating
0% of added lines arrived in commits declaring an AI agent as co-author
The surviving-lines measurement was not run on this repository.
2% of lines added in the last 12 months (since 2025-11-03) arrived in AI-declared commits: 26/1,641 commits, confidence moderate. Also a floor.
32/15,413 commits declaring an agent · Claude, Claude Fable 5, Claude Opus 4.6 and 11 more
confidence: moderate
  • 11% of non-merge commits carry any trailer at all
  • low trailer coverage: the convention may not be in consistent use
  • no widespread author/committer date divergence
21,932 lines excluded as lockfiles, vendored or generated.
This is a lower bound. It counts what the repository declares. Undeclared AI authorship is invisible here, and a single rebase removes the trailers this rests on. Absence of a declaration is absence of disclosure, not absence of AI authorship.

Architecture & Codebase — including AI provenance

01 · adequate · ratings ↑
01.25

1 base image floats: no version, or `latest`

adequate

1 of 6 `FROM` lines in product Dockerfiles name an image without a version, or with `latest`. Each build pulls whatever the registry serves that day, so the image that ships can change without a commit, and last month's build cannot be reproduced. Pin a version, or a digest.

Evidence
docker/pulsar/Dockerfile docker/pulsar/Dockerfile:148 — base image without a version
Respond to this finding

Your response is published beside the finding, not instead of it. A finding you can argue with is the point — and a wrong one is calibration data we want.

An owner's response is removed only when it is unlawful, impersonates someone, publishes personal data or a credential, or is not about the finding. Disagreeing with the report is never a reason. To report a response, or to reach us about one, write to takedown@borehole.dev.

A note that does not affect this rating
01.6

managed-ledger/src/main/java/org/apache/bookkeeper/mledger/impl/ManagedLedgerImpl.java is 6,164 lines, 55× this codebase's median file

adequate

The median source file here is 111 lines. 60 files exceed 1,110 lines, the largest being 6,164. Size is not a defect on its own — some problems genuinely live in one place — but these are where merge conflicts, review fatigue and single-owner knowledge concentrate, and they are the first thing that slows an inheriting engineer down.

A note that does not affect this rating: measured against its own codebase's median, it is below the 85th percentile of 382 surveyed projects' largest files, where this check begins to count.

Respond to this finding

Your response is published beside the finding, not instead of it. A finding you can argue with is the point — and a wrong one is calibration data we want.

An owner's response is removed only when it is unlawful, impersonates someone, publishes personal data or a credential, or is not about the finding. Disagreeing with the report is never a reason. To report a response, or to reach us about one, write to takedown@borehole.dev.

Engineering Process & SDLC Maturity

02 · strong · ratings ↑

No finding. 16 checks ran and none fired; the rejection log below says why each did not.

Organization & Key-Person Risk

03 · strong · ratings ↑

No finding. 10 checks ran and none fired; the rejection log below says why each did not.

Product & Engineering Maturity

04 · strong · ratings ↑
Notes that do not affect this rating
04.38

93 files still carry code deprecated more than two years ago

adequate

93 files were marked deprecated over two years ago and still are, the oldest since Oct 2017. A deprecation is a promise to remove. Ask what still depends on these, and whether removing them is scheduled.

A note that does not affect this rating: in Borehole's calibration, this check's notes were usually true but overstated.

Evidence
pulsar-broker-common/src/main/java/org/apache/pulsar/broker/ServiceConfiguration.java pulsar-broker-common/src/main/java/org/apache/pulsar/broker/ServiceConfiguration.java — deprecated since Oct 2017
pulsar-client-auth-athenz/src/main/java/org/apache/pulsar/client/impl/auth/AuthenticationAthenz.java pulsar-client-auth-athenz/src/main/java/org/apache/pulsar/client/impl/auth/AuthenticationAthenz.java — deprecated since Jan 2018
pulsar-client/src/main/java/org/apache/pulsar/client/impl/auth/AuthenticationDisabled.java pulsar-client/src/main/java/org/apache/pulsar/client/impl/auth/AuthenticationDisabled.java — deprecated since Feb 2018
pulsar-client/src/main/java/org/apache/pulsar/client/impl/auth/AuthenticationTls.java pulsar-client/src/main/java/org/apache/pulsar/client/impl/auth/AuthenticationTls.java — deprecated since Feb 2018
pulsar-broker/src/main/java/org/apache/pulsar/broker/admin/AdminResource.java pulsar-broker/src/main/java/org/apache/pulsar/broker/admin/AdminResource.java — deprecated since Feb 2018
Respond to this finding

Your response is published beside the finding, not instead of it. A finding you can argue with is the point — and a wrong one is calibration data we want.

An owner's response is removed only when it is unlawful, impersonates someone, publishes personal data or a credential, or is not about the finding. Disagreeing with the report is never a reason. To report a response, or to reach us about one, write to takedown@borehole.dev.

04.62

Releases are cut from another branch than the one surveyed

adequate

The newest release, v5.0.1, is not on the branch this survey read; the newest release on it is v1.18. The shipped product may differ from what this report describes. Survey the release branch too.

A note that does not affect this rating: notes like it are common in well-run projects.

Evidence
9ef1a62af tag v5.0.1
Respond to this finding

Your response is published beside the finding, not instead of it. A finding you can argue with is the point — and a wrong one is calibration data we want.

An owner's response is removed only when it is unlawful, impersonates someone, publishes personal data or a credential, or is not about the finding. Disagreeing with the report is never a reason. To report a response, or to reach us about one, write to takedown@borehole.dev.

Security & Reliability Posture

05 · adequate · ratings ↑
05.1

2 credential-shaped strings in the tree sit in tests, examples, documentation or local development settings

adequate

Strings shaped like credentials appear only where fakes are usual: test fixtures, examples, documentation, placeholders and local stacks. They are almost always fakes. Ask someone to confirm that none of them works anywhere, because a real key in a development file is still a real key.

Evidence
JWT 2 cited: JWT, where fakes are usual
File and line are shown to whoever GitHub says controls this repository, signed in, and to a buyer of this report.
Respond to this finding

Your response is published beside the finding, not instead of it. A finding you can argue with is the point — and a wrong one is calibration data we want.

An owner's response is removed only when it is unlawful, impersonates someone, publishes personal data or a credential, or is not about the finding. Disagreeing with the report is never a reason. To report a response, or to reach us about one, write to takedown@borehole.dev.

Notes that do not affect this rating
05.27

The build runs third-party code it does not pin

adequate

2 third-party CI actions are referenced by a tag or branch rather than a commit, so they run whatever that tag points to on the day; 1 step pipes a download straight into a shell. Tags have been moved to malicious commits in real supply-chain attacks, and a piped script is whatever the server returns that minute. Pinning to a commit is the fix, and it is small.

A note that does not affect this rating: notes like it are common in well-run projects.

Evidence
.github/workflows/ci-go-functions.yaml .github/workflows/ci-go-functions.yaml:53 — action pinned by tag
.github/workflows/pulsar-ci.yaml .github/workflows/pulsar-ci.yaml:123 — action pinned by tag
.github/workflows/ci-go-functions.yaml .github/workflows/ci-go-functions.yaml:96 — download piped into a shell
Respond to this finding

Your response is published beside the finding, not instead of it. A finding you can argue with is the point — and a wrong one is calibration data we want.

An owner's response is removed only when it is unlawful, impersonates someone, publishes personal data or a credential, or is not about the finding. Disagreeing with the report is never a reason. To report a response, or to reach us about one, write to takedown@borehole.dev.

05.21

3 shell commands built from strings

adequate

3 places run a command through a shell (`shell=True`, `os.system`, `exec` with a template) rather than passing arguments. Where any part comes from outside, it is command injection. Ask where each one's input comes from.

A note that does not affect this rating: in Borehole's calibration, this check's notes were usually true but overstated.

Evidence
pulsar-functions/instance/src/main/python/python_instance_main.py pulsar-functions/instance/src/main/python/python_instance_main.py:190 — command run through a shell
pulsar-functions/instance/src/main/python/python_instance_main.py pulsar-functions/instance/src/main/python/python_instance_main.py:214 — command run through a shell
pulsar-functions/instance/src/main/python/python_instance_main.py pulsar-functions/instance/src/main/python/python_instance_main.py:226 — command run through a shell
Respond to this finding

Your response is published beside the finding, not instead of it. A finding you can argue with is the point — and a wrong one is calibration data we want.

An owner's response is removed only when it is unlawful, impersonates someone, publishes personal data or a credential, or is not about the finding. Disagreeing with the report is never a reason. To report a response, or to reach us about one, write to takedown@borehole.dev.

05.22

1 deserialiser that can run code

adequate

1 places read data with a deserialiser that executes what it reads (Java object streams). That is safe on data the system wrote itself and remote code execution on anything else. Ask where each one's input comes from.

A note that does not affect this rating: in Borehole's calibration, this check's notes were usually true but overstated.

Evidence
pulsar-package-management/core/src/main/java/org/apache/pulsar/packages/management/core/common/PackageMetadataUtil.java pulsar-package-management/core/src/main/java/org/apache/pulsar/packages/management/core/common/PackageMetadataUtil.java:103 — code-executing deserialiser
Respond to this finding

Your response is published beside the finding, not instead of it. A finding you can argue with is the point — and a wrong one is calibration data we want.

An owner's response is removed only when it is unlawful, impersonates someone, publishes personal data or a credential, or is not about the finding. Disagreeing with the report is never a reason. To report a response, or to reach us about one, write to takedown@borehole.dev.

05.65

16 advisories against this project in the last 24 months, 6 high or critical

adequate

The newest was published on 2026-10-21. A project that publishes advisories is telling its users about its fixes, and the count and pace say how much security work it carries. Whether 16 of them are fixed in the code you ship could not be told from this history: its version is only known to be at least 1.18.0. Answer lives in: the release you run, set against each fixed version. The record is incomplete: NVD: 3 records name pulsar with nothing tying them to this repository (CVE-2024-31084, CVE-2026-111868, CVE-2026-41732).

A note that does not affect this rating: it describes the project's advisory record, and no advisory in it is known to affect the surveyed commit.

Evidence
CVE-2026-105869 2026-10-21: CVE-2026-105869 (critical): Apache Pulsar's MultiRolesTokenAuthorizationProvider authorizes a client with all roles listed in a claim of its JSON Web Token (JWT). The provider is intended
CVE-2026-105926 2026-10-21: CVE-2026-105926 (moderate): The Pulsar broker serves two schema commands on its binary protocol: GetSchema, which returns the schema registered for a topic, and GetOrCreateSchema, which re
CVE-2026-105927 2026-10-21: CVE-2026-105927 (low): The Apache Pulsar WebSocket service allows a WebSocket consumer to configure a dead letter policy through query parameters of the consumer endpoint, including t
CVE-2026-105930 2026-10-21: CVE-2026-105930 (moderate): When package management is enabled, Pulsar Functions, Sources and Sinks can be registered or updated from a package stored in the Pulsar Packages Management Ser
CVE-2026-105931 2026-10-21: CVE-2026-105931 (low): The Apache Pulsar broker exposes a transaction administration REST API under /admin/v3/transactions. When authentication and authorization are enabled, most of
Respond to this finding

Your response is published beside the finding, not instead of it. A finding you can argue with is the point — and a wrong one is calibration data we want.

An owner's response is removed only when it is unlawful, impersonates someone, publishes personal data or a credential, or is not about the finding. Disagreeing with the report is never a reason. To report a response, or to reach us about one, write to takedown@borehole.dev.

Observability & Operations

06 · strong · ratings ↑
A note that does not affect this rating
06.9

No error reporter is wired in

adequate

Nothing in the service initialises an error reporter (Sentry, Rollbar, Bugsnag, Honeybadger or an APM agent). An exception in production reaches a person only if someone is reading the logs, which usually means a customer reports it first.

A note that does not affect this rating: notes like it are common in well-run projects.

Evidence
error reporting no error reporter initialised
Respond to this finding

Your response is published beside the finding, not instead of it. A finding you can argue with is the point — and a wrong one is calibration data we want.

An owner's response is removed only when it is unlawful, impersonates someone, publishes personal data or a credential, or is not about the finding. Disagreeing with the report is never a reason. To report a response, or to reach us about one, write to takedown@borehole.dev.

Fit with the Acquirer

07 · not assessable · ratings ↑

Not rated: structurally not assessable from a repository. What a person adds here.

Check it on the running system

4 checks against the running system follow from the findings above: what a buyer's engineer will try, how to run it first, and what to have ready. A paid survey of this repository includes them. See the tiers.

A paid survey of a public repository is also reviewed: a language model reads each finding against the code and withdraws only findings it judges the code contradicts, each listed with its reason. The review is a language model's reading of the findings against the code, and it can be wrong. It never adds a finding, never raises a band, and never removes a finding from a proven check or an advisory that affects the surveyed version.

What a person adds

The survey reads what the repository can show. The code cannot settle these questions, and on them this report states nothing. Each says where its answer lives: your own engineer, the company, or an assessor you choose can settle it. Questions marked measured open with something this repository shows.

Architecture & Codebase — including AI provenance

01 · full coverage
  1. measured The tree carries design documentation (ARCHITECTURE.md). Does it match what the team believes today? Ask them to walk through it against the code. Answer lives in: The team01.38
  2. Is the architecture right for the next three years of the product? Answer lives in: Your architects, with the product roadmap01.39
  3. Were the home-grown components reasonable choices when they were made, and are they now? Answer lives in: The team's reasoning at the time01.40

Engineering Process & SDLC Maturity

02 · high coverage
  1. Is review real or a rubber stamp? Comment depth and time to approve need the pull request history. Answer lives in: The code host's pull request data02.32
  2. Is delivery planned and measured, or heroic? Answer lives in: The issue tracker: backlog, sprint history, estimate accuracy02.38
  3. How are incidents run, reviewed and learned from? Answer lives in: Tickets, chat and postmortems02.37

Organization & Key-Person Risk

03 · partial coverage
  1. measured 782 people have committed here. Which of them are you acquiring, and which are you replacing? Answer lives in: The deal terms03.29
  2. Who mentors whom, and would that survive a departure? Answer lives in: The team; review history only suggests candidates03.28
  3. Can the team grow, and who stands behind the top three contributors? Answer lives in: Recruiting data and the org chart03.30
  4. Is the seniority mix sound, and will pay survive your salary bands? Answer lives in: HR data03.31
  5. Is the pace sustainable? Commit times cannot say: git keeps no reliable local time. Answer lives in: Interviews and on-call history03.14
  6. Does the team want to stay after close? Answer lives in: Interviews03.32
  7. How are decisions made and disagreements resolved? Answer lives in: Time with the team03.33

Product & Engineering Maturity

04 · minimal coverage
  1. measured 1,624 commits landed in the last year, against 717 the year before (+126%). What drove it: new people, a deadline, or code produced faster than before? Answer lives in: The team04.11
  2. Can this team deliver the stated roadmap on the stated timeline? Answer lives in: The data room and the team's record of estimates04.32
  3. Does leadership know about the debt, and is time budgeted to repay it? Answer lives in: Budget and roadmap decisions04.31
  4. Is the engineering shape consistent with the commercial story? Answer lives in: Revenue, customer and churn data04.33

Security & Reliability Posture

05 · partial coverage
  1. measured 05.1 and 05.5 found credential-shaped strings in this repository. Was each one revoked at the provider? Deleting it from the code revokes nothing; only the provider's audit log shows that it was. Answer lives in: The provider's console and audit log05.38
  2. measured No threat model is in the tree of what looks like a running service. Does one exist elsewhere, and who owns it? Answer lives in: The security owner05.43
  3. measured Infrastructure code (deployment/terraform-ansible/aws/instances.tf and 7 more) last changed 57 months before the newest commit, while 6,849 commits landed. Is the infrastructure now changed by hand? Compare the live account with the code. Answer lives in: The cloud console05.36
  4. What has actually broken, how often, and how badly? Answer lives in: Ticketing and chat05.41
  5. What did external testing find, and was it fixed? Answer lives in: Reports in the data room05.42
  6. What is the SOC 2, ISO 27001 or GDPR status, and where is the evidence? Answer lives in: Audit reports; policy files in the tree are not evidence05.44

Observability & Operations

06 · partial coverage
  1. measured Nothing in the tree backs up or restores data. How is data backed up, and has a restore ever been rehearsed? Answer lives in: The operations team06.19
  2. measured No alert rule is defined in the repository. Where are alerts defined, who receives them, and when did one last fire? Answer lives in: The alerting tool and the on-call rota06.10
  3. Are the dashboards opened, the alerts acknowledged and the pages answered? Answer lives in: Pager history and dashboard logs06.29
  4. Are the service-level objectives actually met? Answer lives in: Production metrics06.30
  5. Who carries the pager, and how often does it go off? Answer lives in: Pager exports and interviews06.31
  6. What does it cost to run, and how much headroom is there? Answer lives in: Cloud billing and capacity plans06.32

Fit with the Acquirer

07 · none coverage

Not rated: structurally not assessable from a repository.

  1. This is primarily a Java codebase. Does your engineering organisation already run Java in production, or would this be the first? 07.1
  2. The bulk of this system sits in pulsar-broker/, pulsar-functions/, pulsar-common/. Which of your existing systems would each of those have to absorb or replace? 07.10
  3. The repository carries deployment configuration (deployment/kubernetes/helm/README.md and 5 more). Does that match your deployment and on-call model, or does it need rehosting first? 07.2
  4. What is your tolerance for the findings above remaining unaddressed for the first two quarters after close, given everything else that will compete for this team's time?
  5. Which of these systems duplicate yours, and which get retired? Answer lives in: Your architecture07.11
  6. What will integration cost, and in what order? Answer lives in: The engagement07.12
  7. Where does the team land in your organisation, and who reports to whom? Answer lives in: Your org design07.13
  8. Are there earn-outs, retention packages or contractor IP to assign? Answer lives in: Deal terms07.14
  9. Do customer contracts limit hosting, regions or vendors? Answer lives in: Customer contracts07.15

A human assessment is Borehole's own paid service, €12,000+ (total price is determined per engagement; travel billed at cost). It is not independent of this report: the same business produced both. It is a separate contract, with its own scope, terms and reliance.

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Rejection log — 94 signals that ran and did not fire

Appendix: rejection log — 94 signals that ran and did not fire

Published on purpose. A signal that looked and decided not to fire has told you something, and this is the calibration data behind every threshold above.

Looked, and found nothing — 69

SignalWhat it found
04.hotspot_concentration change is spread across the codebase rather than pooling in a few filesfiles 27,859 · top5 share 0.023
04.debt_markers debt markers are sparsemarkers 136 · per kloc 0.1 · lines read 1,336,587
04.dependency_sprawl direct dependency counts are unremarkable
04.test_growth test effort kept pace with code writtenlate test per code 1.181 · early test per code 0.55
04.churn_trend rework is not rising against new worklate delete per insert 0.639 · early delete per insert 0.433
04.fixes_with_tests fixes usually come with a testfixes 1,389 · share 0.796 · with tests 1,106
04.fix_share_trend fixing is not crowding out building
04.compat_layers little code is kept for the old wayshare 0.0 · code files 3,016 · compat files 0
06.telemetry_presence a telemetry or error-reporting library is referencednote presence only; whether anyone watches it is not visible here · matches 372
06.structured_logging a structured logging library is referencedmatches 3
06.healthcheck_presence a health or readiness check is defined
06.telemetry_depth the service is visible in more than one way
06.correlation_ids a request can be followed through the logstracing True · request id sites 24
06.usage_reporting_default the product's code names no reporting hostsettings on 0 · settings off 0
06.environment_branching environment differences live in configurationsites 0
06.release_markers releases are markedtags last year 49 · release commits 0 · changelog commits 0
06.migrate_on_start migrations do not run at container start
03.contributor_concentration no single contributor dominates the last 24 monthsyears 10.2 · window last 24 months · authors 782
03.active_contributors more than one contributor active in the trailing yearall time 782 · active 12mo 136
03.drive_by_contributors an open contributor base, where one-commit contributors are normalauthors 782 · one off share 0.476
03.contributor_attrition no contributor dominates enough for their absence to matterauthors 782 · top share less than a quarter · top contributor last committed within the last three months
03.critical_path_ownership more than one person changes the critical pathsauthors 173
03.second_contributor_attrition the second and third contributors are still active
03.bus_factor_trend the team has not narrowed to one person
03.joiners_and_leavers the team is not shrinkingleft 6 · joined 19 · regular last year 46
02.merge_discipline a meaningful share of recent change carries evidence of reviewmerges 0 · window last 24 months · with tracked 3
02.ci_presence CI configuration is present in the working treecount 11
02.test_presence tests are present in a normal proportion to sourcetests 2,289 · source 5,294 · test ratio 0.432
02.release_cadence tags are presenttags 365
02.conventional_commits commit subjects generally carry contentsampled 15,413 · low content share 0.0
02.branch_protection_hints process scaffolding is present in the repository
02.ci_runs_tests CI invokes a test runnerconfigs 10 · with tests 3
02.skipped_tests few tests are switched offfocused 0 · skipped 0 · test files 2,707
02.ci_test_gating no test run in CI is written so that it cannot failconfigs 11
02.revert_share change is rarely undoneshare 0.0 · reverts 0 · recent commits 2,341
02.dependency_update_cadence dependencies move with the codelockfiles 2 · commits since 138 · days since lockfile changed 5
02.flaky_test_markers tests are not retried until they passtest retries 0 · suite retries 0
02.lint_in_build a linter or formatter runs in the buildwired 9 · ci configs 11 · product files 3,016
02.commit_size changes arrive in reviewable sizesshare 0.028 · commits 2,043 · over 2000 lines 58
01.burst_import the largest burst was documentation and notebooks (99% of it), which explains the rate: translations arrive from a vendor in bulk, dependencies and generated code are committed whole, a merged pull request is dated when it merged, not when it was written, a branch merged by a merge commit was reviewed as one piece, and an export or mirror tool dates history when it replays itlargest commits a575efa..e364848 · bursts explained 6 · largest net added 42,101
01.initial_dump first commit is not a disproportionate share of the codebaseinsertions 129,878 · share of insertions 0.0205
01.message_uniformity commit subjects vary in wording and lengthlength stdev 22.64 · repeat share 0.0
01.revision_depth most files were revisited after they were first writtenfiles seen 3,480 · write once share 0.186
01.duplicated_blocks little shipping code is repeated verbatim across filesshare 0.0132 · product files 3,004 · distinct blocks 337,134
01.swallowed_errors errors are rarely thrown awayloc 1,342,199 · files 12 · per kloc 0.02
01.unfinished_migration no language migration is stalled halfway
01.weights_in_git no model weights are committedfiles 0
05.security_guardrails at least one standard guard rail is configured
05.dependency_pinning dependencies are substantially pinnedunpinned 0
05.license_present a licence file is presentfound True
05.container_runs_as_root every shipped Dockerfile drops to a non-root user or builds on a non-root base imagedockerfiles 1
05.secrets_management_pattern no environment file is committed outside tests and examplesenv files 0
05.sql_from_strings no SQL is assembled from strings in product codefiles 0 · sites 0 · value interpolated 0
05.tls_verification_off no TLS verification is switched off in product codefiles 0 · sites 0 · pinned instead 0
05.known_vulnerabilities no locked dependency has a published advisoryadvisories 0 · dependencies 313 · high or critical 0
05.privileged_workloads no workload runs privileged or in the host's namespacessites 0 · behind a setting or built here 0
05.credentials_in_deploy_config deployment configuration references secrets, never holds themfiles 0 · sites 0
05.signing_material no signing keystore or profile is committedfiles 0
05.license_vendored_unlicensed no vendored third-party code is committedcomponents 0
05.license_grant_unclear the licence is recognisable as Apache-2.0class permissive · license Apache-2.0
05.committed_native_libraries no widely used compiled library is committed to the productlibraries 0
04.dependency_churn few dependencies were added and dropped within 60 daysdependencies seen 134 · added in two years 32 · removed within 60 days 0
04.ci_platforms_dropped no platform was dropped from CI in the last two years
04.repository_status the README's first screen states no end, move or freezestatements 0
02.development_elsewhere nothing says development happens elsewhereno pr statements 0 · mirror statements 0 · replayed commit share 0.0
05.licence_changes the root licence has not changed in the history readlicence versions 1 · unreleased changes 0
05.paid_edition no directory carries a separate paid-edition licencedirectories 0
04.releases_stopped releases keep pace with developmentmedian gap days 1.5 · days since last tag 8 · commits last 90 days 812
03.single_maintainer no file says one person maintains itstatements 0

Could not conclude, or did not apply — 25

Not a clean result. Each says why it could not answer here.

SignalWhy
04.eol_runtimeno pinned runtime version to check
04.schema_churnno schema migrations to read
04.dependency_redundancyno JavaScript manifest to read
06.print_loggingnot assessed for Java: its logger calls are not read
06.alert_rulesno alert rules in the repository; they may live in a console
06.deployed_image_floatsno deployment descriptor names an image
06.probes_identicalno Kubernetes probes
06.single_replicano Kubernetes deployments
06.feature_flagsno feature-flag service; flags may live elsewhere
02.long_lived_branchestoo few merges to judge (squash and rebase leave none)
01.notebook_outputsnot a data or machine-learning repository
05.outbound_timeoutsnot assessed for Java, the language the product is written in: this check's patterns read other languages only
05.migration_reversibilitytoo few migrations to judge
05.resource_limitsno Kubernetes workload manifests
05.public_env_secretnot a frontend
05.unsafe_htmlnot a frontend
05.source_maps_shippednot a frontend
05.cleartext_trafficnot a mobile app
05.dataset_provenancenot a data or machine-learning repository
05.license_copyleft_inheritedno third-party code is committed to this repository, so the licences it depends on are resolved at build time and are not readable here
05.license_manifest_conflictno packaging manifest states a licence
04.flags_accumulatingfew or no feature flags in the history
04.api_versions_coexistingone API version is served, or none
05.project_advisoriesrecord incomplete: no advisory found in the sources that answered; NVD: 3 records name pulsar with nothing tying them to this repository (CVE-2024-31084, CVE-2026-111868, CVE-2026-41732)
05.project_exploitedno affecting advisory is on CISA's Known Exploited list
BOREHOLE READING NOT A CERTIFICATION DX06-ZH5A-XM4B 2026-11-03 · 1215DA1 BOREHOLE.DEV/VERIFY

Anyone can check this report against the authoritative record — click the stamp, or enter DX06-ZH5A-XM4B at borehole.dev/verify.

The code commits to the 106 checks this run performed, the bands they produced, and the commit they were read at. It does not cover checks written since.

Put the mark in your README

The image is wrapped in a link to the verification page, so a reader can check it rather than take it on trust. If you embed it: link it to the report, remove it if the report is delisted, and do not present it as a certification or an endorsement.

[![Borehole reading, not a certification](https://borehole.dev/badge/apache/pulsar/1215da1.svg "Borehole free reading: not for reliance. See the full report.")](https://borehole.dev/verify/DX06ZH5AXM4B?via=badge)

Borehole reading DX06-ZH5A-XM4B, not a certification

Where this scan ran

This scan ran on ordinary cloud infrastructure (cloud-run), not in a hardware-isolated confidential VM. Nothing about it is attested by Google.

What an attested survey proves, and what it does not.

What this scan did with the repository — 7 steps

Written by the steps themselves as they ran, not described afterwards. A hand-written account of a data flow drifts the first time somebody changes the flow and not the account.

AtStepDetail
0.0s read repository metadata from the GitHub API size mb: 288.3authenticated: False
47.3s cloned the repository to a temporary directory depth: full
83.3s read the git history commits: 15420tracked files: 6385
566.3s ran the deterministic checks blame pass: Falseread working tree: False
566.4s recorded where this scan ran attested: Falseenvironment: cloud-run
922.5s kept the facts, never the source, for re-reading under new checks
922.5s deleting the working copy

Total 922.5s ·source content sent off this machine: none · calls to a language model: 0 · the clone was deleted when the survey ended

An automated reading of a repository's code and its history up to one commit, with public advisory records. It may be wrong, it is not legal, financial, investment or security advice, and it does not replace diligence by a qualified person. It is provided for information: nobody may rely on it (Borehole's terms, section 3).

BOREHOLE 0.7.15 DETERMINISTIC LAYER · NO MODEL CALLSREAD ON BOREHOLE'S SERVER · CLONE DELETED TAKEDOWNCONTRIBUTED TO THIS REPOSITORY? YOUR RIGHTS