Security context
What an agent needs to avoid regressing past fixes and find the next vuln in this repo.
mwitkow/grpc-proxy
master @ 2866842
3
Fixes
0
CVEs
HIGH
Peak severity
Highlights
Denial of Service: 3 prior fixes. Scrutinize any change in this area.
proxy/handler.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.
Denial of Service: Improper handling of closed channels within select blocks can cause the execution thread to spin in an infinite loop, consuming 100% CPU and denying service to legitimate clients. Developers must avoid prematurely closing coordination channels in the handler's routing loop.
Denial of Service: Synchronous (unbuffered) channel sends during stream termination or error propagation can cause proxy goroutines to block indefinitely. This deadlock leads to goroutine leaks and eventual service exhaustion under load.
Denial of Service: Allocating cancellable contexts via context.WithCancel before validating backend director results can leak system resources. Ensuring that error checks occur prior to context and stream construction prevents memory exhaustion.