Read 2026-11-07
mtrudel/bandit: technical due diligence, read from its repository
What Borehole read in mtrudel/bandit's code and history at 76f0ef5: its licence, security advisories, releases, review practice, tests, dependencies and operations. Every finding cites the file and line it rests on. The full report also covers the team and asks the questions the code cannot answer.
| Dimension | Rating |
|---|---|
| Architecture & Codebase — including AI provenance | strong |
| Engineering Process & SDLC Maturity | strong |
| Product & Engineering Maturity | not assessable |
| Security & Reliability Posture | adequate |
| Observability & Operations | not assessable |
| Fit with the Acquirer | not assessable |
Architecture & Codebase — including AI provenance
strongNo finding.
Engineering Process & SDLC Maturity
strongAlmost no process scaffolding exists in the repository
adequateOf five ordinary markers — CI workflows, CODEOWNERS, a pull-request template, pre-commit hooks, contribution guidance — 1 is present: CI workflows. Branch protection itself is a GitHub setting rather than a file, so this is a reading of proxies and not of the rules themselves. What it does establish is that the process is not written down anywhere a new engineer would find it.
| 1 of 5 markers present across 123 tracked files |
Product & Engineering Maturity
not assessableEffort is shifting from building to rewriting
adequateDeleted lines per line added rose from 0.50 to 0.79 between the first and second halves of this history. Rework is normal and often healthy, but a rising ratio means an increasing share of the team's time is spent replacing code that already exists rather than building what does not. Whether that is deliberate repayment or churn is a question for the team.
| first half 0.50, second half 0.79 (split 2023-05-02) |
Security & Reliability Posture
adequate1 credential-shaped string added in the history sit in tests, examples, documentation or local development settings
adequateStrings 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.
| private key block, where fakes are usual |
1 locked dependency has published vulnerabilities
adequate1 of 26 locked dependencies match 1 published advisories in OSV. A lockfile says which version is installed, not whether the flawed code is reachable from this product, so each needs a look. Most are fixed by an upgrade, and the advisory names the version. This lockfile pins development tools alongside what ships and does not say which is which, so some of these may never reach a user.
mix.lock — plug_crypto 2.2.0: EEF-CVE-2026-105963 (unrated), fixed in 2.2.1 |
29 advisories against this project in the last 24 months, 19 high or critical
adequateThe newest was published on 2026-10-28. A project that publishes advisories is telling its users about its fixes, and the count and pace say how much security work it carries. The record is incomplete: NVD: 3 records name bandit with nothing tying them to this repository (CVE-2026-105963, CVE-2026-59694, CVE-2026-9323).
| 2026-10-28: CVE-2026-116078 (high), fixed in c8dc1e97050cf359f61ed6cdd110f3cdaf1d6f5f: HTTP/2 request bodies made of 1-byte DATA frames amplify memory use in Bandit |
| 2026-10-26: CVE-2026-108525 (high), fixed in c8dc1e97050cf359f61ed6cdd110f3cdaf1d6f5f: HTTP/2 inbound flow control is not enforced, letting a client queue unbounded DATA in stream processes in Bandit |
| 2026-10-26: CVE-2026-108529 (high), fixed in 6feadb31189d18b7dcda6c663112cd3bbaf63a46: SETTINGS and stream-0 WINDOW_UPDATE frames trigger quadratic work over blocked streams in Bandit |
| 2026-10-26: CVE-2026-109584 (high), fixed in 44bf969cd59851622fb6ee4d16227fbc39a77fb4: HTTP/2 cookie crumb join expands a small HPACK header block into an unbounded allocation in Bandit |
| 2026-10-26: CVE-2026-110314 (moderate), fixed in 220b9dfd27f9a21305be2afc75cbe585ddc24e7a: WebSocket frames keep reaching the WebSock after a server-initiated close in Bandit |
Observability & Operations
not assessableNot rated: only 4 of 16 checks could reach a conclusion here; the rest do not apply to this repository or could not read it.
Fit with the Acquirer
not assessableNot rated: structurally not assessable from a repository.
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