Security context

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

symfony/routing

              8.2 @ fe0bfec
            

Fixes

CVEs

MEDIUM

Peak severity

Highlights

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

Generator/UrlGenerator.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.

Auth Bypass: Incomplete regex grouping in route parameter validation allowed partial pattern matches, potentially enabling attackers to construct URLs that bypass routing restrictions and access unauthorized endpoints.

HTTP Request Smuggling: Lenient URI parsing allowed invalid characters like backslashes and control characters to pass into RequestContext, creating parsing discrepancies between the application and upstream reverse proxies.