Security context

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

symfony/filesystem

              8.2 @ 99aec13
            

Fixes

CVEs

MEDIUM

Peak severity

Highlights

Insecure File Permissions: 1 prior fix. Scrutinize any change in this area.

Filesystem.php: 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.

Insecure Temporary File: Creating lock files in shared temporary directories with standard write/open modes can lead to local race conditions or unauthorized access. Future work with file locks must enforce exclusive creation modes to prevent hijack risks.

Insecure File Permissions: Improper handling of permission discovery functions like fileperms can cause fallback paths to apply overly-permissive default masks. Robust verification and fallback handling are required during file dumping.