Security context

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

kubernetes/apiextensions-apiserver

              master @ 9d85318
            

Fixes

CVEs

HIGH

Peak severity

Highlights

Denial of Service: 15 prior fixes. Scrutinize any change in this area.

pkg/apis/apiextensions/validation: most-fixed (5 issues). Treat as high-risk during review.

13 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: Poorly bounded or complex CEL expressions can cause CPU resource exhaustion and crash the API server. Multiple fixes enforce static cost estimation limits, runtime budgets, and integration of OpenAPI constraints into CEL validation environments to prevent DoS.

Auth Bypass: Failure to enforce lifecycle restrictions on CRDs allows unauthorized actions, such as patching or creating resources under terminating CRDs, or modifying forbidden structural metadata.

Denial of Service: Processing malformed or deeply nested JSON patches in CustomResource operations can trigger panics and crash the API server.