Description (CNA)
Gazelle versions through 0.49 for Perl allows HTTP Request Smuggling via Improper Header Precedence. Gazelle incorrectly prioritizes "Content-Length" over "Transfer-Encoding: chunked" when both headers are present in an HTTP request. Per RFC 7230 3.3.3, Transfer-Encoding must take precedence. An attacker could exploit this to smuggle malicious HTTP requests via a front-end reverse proxy.
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| KAZEBURO / Gazelle | affected 0 through 0.49 |
CWE
CWE-444
References
- https://datatracker.ietf.org/doc/html/rfc7230#section-3.3.3
- https://security.metacpan.org/patches/G/Gazelle/0.49/CVE-2026-40562-r1.patch
- https://metacpan.org/release/KAZEBURO/Gazelle-0.50/changes
ADP enrichment
No English description supplied.
No references supplied.
No English description supplied.