CVE-2026-40561

תיאור (מקור, אנגלית)

Starlet versions through 0.31 for Perl allows HTTP Request Smuggling via Improper Header Precedence. Starlet 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

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

EPSS — סבירות ניצול

0% (אחוזון 000) נכון ל-31/7/2026

CWE

CWE-444

מוצרים מושפעים

kazuho: starlet

קישורים

• https://github.com/kazuho/Starlet/commit/a7d5dfd1862aafa43e5eaca0fdb6acf4cc15b‮… Patch
• https://datatracker.ietf.org/doc/html/rfc7230#section-3.3.3 Third Party Advisory
• https://metacpan.org/release/KAZUHO/Starlet-0.32/changes
• http://www.openwall.com/lists/oss-security/2026/05/03/1 Mailing ListThird Party Advisory