Highlights
Auth Bypass: 2 prior fixes. Scrutinize any change in this area.
config/config.go: most-fixed (1 issue). 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: Incomplete enforcement of API key verification, especially when dealing with legacy configurations or migration states, directly exposes upstream proxy resources to unauthorized access. Strict validation of master switches is critical.
Denial of Service: Unbounded recursion or infinite loops when walking previous response history chains can exhaust system memory and CPU. Implementing strict cycle detection and maximum traversal depth (e.g., 64) is required.
Auth Bypass: Partial administrative settings updates can lead to state inconsistency, such as clearing active API keys or disabling enforcement flags, causing accidental public exposure of the proxy.