Security context

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

azuread/microsoft-authentication-library-for-go

              main @ 11b8221
            

Fixes

CVEs

HIGH

Peak severity

66.7%

Coverage

Highlights

Denial of Service: 3 prior fixes. Scrutinize any change in this area.

apps/internal/oauth/ops/authority/authority.go: most-fixed (2 issues). Treat as high-risk during review.

2 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: Insecure endpoint validation can allow an attacker to spoof OIDC issuer endpoints. Validating the issuer returned during discovery against the trusted authority or known aliases is critical to prevent downstream authentication bypasses.

SSRF: Improper path resolution during tenant ID concatenation allows path traversal segments to override the target host. Utilizing robust URL-resolving mechanisms instead of simple string or path joining prevents host hijacking.

Denial of Service: Concurrent access to shared caches without adequate synchronization can result in runtime map panics. Protecting resolved endpoints with proper locking and singleflight mechanisms is essential for high-concurrency authentication libraries.