Highlights
Auth Bypass: 5 prior fixes. Scrutinize any change in this area.
idtoken: most-fixed (3 issues). Treat as high-risk during review.
4 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 validation of token claims, specifically the expiration ('exp') claim, allows the acceptance of expired credentials, completely bypassing auth controls during ID token verification.
Auth Bypass: Unvalidated credential configurations loaded through arbitrary JSON options allowed attackers to abuse impersonation endpoints, requiring deprecation of raw JSON options in favor of typed credential builders.
Denial of Service: Unconditional type assertions on 'http.DefaultTransport' without safety checks can lead to nil pointer dereferences or panic crashes, causing service-wide denial of service.