Security context

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

symfony/uid

              8.2 @ 4271723
            

Fixes

CVEs

MEDIUM

Peak severity

66.7%

Coverage

Highlights

Cryptographic Weakness: 2 prior fixes. Scrutinize any change in this area.

Uuid47Transformer.php: most-fixed (2 issues). 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.

Cryptographic Weakness: The weak-secret guard was bypassed for secrets longer than 16 bytes that consist of identical bytes, allowing trivially weak keys. The fix compares against actual secret length, but this class of validation bypass is a recurring theme.

Information Disclosure: UUIDv6 generation leaked the host MAC address in the node field, enabling hardware identification. The fix XORs the node with a random seed, but other UUID variants or future code may repeat this pattern.