Highlights
Denial of Service: 1 prior fix. Scrutinize any change in this area.
modules/http/src/main/java/org/glassfish/grizzly/http/HttpCodecFilter.java: 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.
HTTP Request Smuggling: Lax validation of header structures, particularly obsolete multiline definitions, allowed boundary desynchronization on downstream proxies. Future modifications to the parser must strictly adhere to RFC 9110.
HTTP Response Splitting: Failure to validate characters inside header fields allowed attackers to inject control sequences. Strictly enforcing character boundaries during header serialization is essential to prevent injection vectors.
Denial of Service: The use of assertions to check network-provided buffer lengths allowed malformed external HTTP/2 frames to trigger server-side crashes via assertion failures. Malformed input must be handled gracefully through runtime exceptions without halting the server process.