Security context

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

pallets/itsdangerous

              main @ 672971d
            

Fixes

CVEs

MEDIUM

Peak severity

Highlights

Auth Bypass: 1 prior fix. Scrutinize any change in this area.

itsdangerous.py: most-fixed (1 issue). Treat as high-risk during review.

0 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.

Auth Bypass: Insecure separator configuration in Signer allows utilizing characters from the base64 alphabet, which enables signature spoofing and verification bypasses due to ambiguous payload parsing. Developers must ensure separators are strictly validated against the serialization alphabet.