Security context

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

python-markdown/markdown

              master @ 8a9ae23
            

Fixes

CVEs

HIGH

Peak severity

100.0%

Coverage

Highlights

Input Validation: 2 prior fixes. Scrutinize any change in this area.

markdown/inlinepatterns.py: most-fixed (2 issues). Treat as high-risk during review.

1 high-severity fix in this history; regressions here are high-impact.

Recurring patterns

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

Denial of Service: Cubic-backtracking regexes in reference link and fenced block processing allow crafted input to cause severe CPU exhaustion.

Input Validation: urlparse() crashes on malformed URLs, causing a denial of service; patched twice, suggesting the initial guard was incomplete.