All errata/sisyphus/ALT-PU-2026-20208-2
ALT-PU-2026-20208-2

Package update perl-HTTP-Headers-ActionPack in branch sisyphus

Version0.10-alt1
Published2026-10-27
Max severityNONE
Severity:

Closed issues (1)

CVE-2026-113877
NONE

HTTP::Headers::ActionPack versions before 0.10 for Perl allow CPU exhaustion via Accept-Language ranges matched as regular expressions. _language_match interpolates each Accept-Language range into the pattern `/^$range\-/i` without escaping it, so regular expression syntax in the header reaches the regex engine. A 12-byte range such as `(a?|b?){26}z` backtracks for seconds, and each increment of the quantifier doubles the time. An invalid range such as `(` fails to compile. A remote attacker can exhaust CPU, or make choose_language die, in any application that passes an untrusted Accept-Language header to it.

Published: 2026-10-23Modified: 2026-10-26