Security context

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

mholt/certmagic

              master @ cf6f57d
            

Fixes

CVEs

HIGH

Peak severity

66.7%

Coverage

Highlights

Auth Bypass: 2 prior fixes. Scrutinize any change in this area.

certificates.go: most-fixed (1 issue). 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.

Auth Bypass: A failure to correctly evaluate the error return value from the user-defined DecisionFunc allowed TLS handshakes to proceed with unauthorized on-demand certificate acquisitions, bypassing local policies.

Auth Bypass: OCSP responses from delegated responders were accepted without validating that they possessed the required id-kp-OCSPSigning Extended Key Usage (EKU) attribute under RFC 6960, allowing spoofed status responses.

SSRF: Incomplete internal hostname verification allowed internal-vs-public address checks to be bypassed, specifically when handling the '.internal' top-level domain.