Highlights
Auth Bypass: 3 prior fixes. Scrutinize any change in this area.
AuthGrant.java: most-fixed (1 issue). Treat as high-risk during review.
3 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: Grant evaluation order was reversed, allowing later denies to be overridden by earlier allows, or vice versa, leading to unauthorized access.
Auth Bypass: User and role matching logic was not canonicalized, causing incorrect handling of anonymous and wildcard users, potentially granting access to unintended principals.
Auth Bypass: Addition of MATCH_EVERYTHING wildcard and anonymous user handling could inadvertently match more users than intended, creating an authorization bypass.