Security context

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

adamfisk/littleproxy

              master @ 70edbe1
            

Fixes

CVEs

HIGH

Peak severity

31.3%

Coverage

Highlights

Denial of Service: 6 prior fixes. Scrutinize any change in this area.

src/main/java/org/littleshoot/proxy/impl/ClientToProxyConnection.java: most-fixed (7 issues). Treat as high-risk during review.

8 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.

HTTP Request Smuggling: Inconsistent processing of hop-by-hop headers, missing validation of malformed requests, and incorrect order of Netty's pipeline handlers allowed malicious request smuggling and connection desynchronization.

Denial of Service: Direct, non-proxied HTTP requests sent to the proxy server triggered an infinite loop, exhausting server resources and leading to immediate service denial.

Auth Bypass: Dropped HTTP headers when copying incoming requests can strip essential authorization fields, and the reuse of filters across persistent connections allows unauthenticated requests to bypass security gates.