Advisories » MGASA-2026-0119

Updated perl-Starman packages fix security vulnerability

Publication date: 07 May 2026
Modification date: 07 May 2026
Type: security
Affected Mageia releases : 9
CVE: CVE-2026-40560

Description

Starman versions before 0.4018 for Perl allow HTTP Request Smuggling
via Improper Header Precedence.
Starman 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.
                

References

• https://bugs.mageia.org/show_bug.cgi?id=35448
• https://www.openwall.com/lists/oss-security/2026/04/29/1
• https://metacpan.org/release/MIYAGAWA/Starman-0.4018/changes
• https://datatracker.ietf.org/doc/html/rfc7230#section-3.3.3
• https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2026-40560

SRPMS

9/core

• perl-Starman-0.401.800-1.mga9