CVE-2026-40562

תיאור (מקור, אנגלית)

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.

מדדים

CVSS 3.1

7.5 (HIGH) מקור הציון: CNA CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N

EPSS — סבירות ניצול

0% (אחוזון 000) נכון ל-1/8/2026

CWE

CWE-444

מוצרים מושפעים

kazeburo: gazelle

קישורים

• https://security.metacpan.org/patches/G/Gazelle/0.49/CVE-2026-40562-r1.patch Patch
• https://datatracker.ietf.org/doc/html/rfc7230#section-3.3.3 Third Party Advisory
• https://metacpan.org/release/KAZEBURO/Gazelle-0.50/changes Release Notes
• http://www.openwall.com/lists/oss-security/2026/05/06/7 Mailing ListThird Party Advisory