Security context

What an agent needs to avoid regressing past fixes and find the next vuln in this repo.

theupdateframework/python-tuf

              develop @ 19ab12b
            

Fixes

CVEs

CRITICAL

Peak severity

80.0%

Coverage

Highlights

Signature Verification Bypass: 6 prior fixes. Scrutinize any change in this area.

tuf/client/updater.py: most-fixed (12 issues). Treat as high-risk during review.

22 high-severity fixes in this history; regressions here are high-impact.

Recurring patterns

The bug types that recur here, drawn from past fixes, not open vulnerabilities.

Signature Verification Bypass: Multiple fixes address missing or incomplete signature verification steps, including self-signature checks, threshold counting, and per-delegation-path verification. These are the most frequent high-severity issues.

Path Traversal: Rolename-based filenames and target paths were used without proper sanitization, allowing arbitrary file writes. Fixes involve URL-encoding or relative-path validation.

Auth Bypass: Root metadata version chaining and expiration checks were missing or bypassable, enabling rollback and acceptance of stale metadata.