Security context

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

prometheus/client_python

              master @ 7819d80
            

Fixes

CVEs

MEDIUM

Peak severity

Highlights

Denial of Service: 2 prior fixes. Scrutinize any change in this area.

prometheus_client/exposition.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.

Denial of Service: The HTTP server used to expose metrics could leak connection threads and exhaust system memory under load because thread lifecycles were not set to daemon mode, preventing resource reclamation.

Denial of Service: The garbage collection metric collector was vulnerable to stack overflow crashes when its callback was triggered recursively, requiring an explicit re-entrancy guard.