CVE-2026-5091

Name	CVE-2026-5091
Description	Catalyst::Plugin::Authentication versions through 0.10024 for Perl is susceptible to timing attacks. These versions use Perl's built-in eq comparison. Discrepencies in timing could be used to guess the underlying hash or password.
Source	CVE (at NVD; CERT, ENISA, LWN, oss-sec, fulldisc, Debian ELTS, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more)
Debian Bugs	1137325

Vulnerable and fixed packages

The table below lists information on source packages.

Source Package	Release	Version	Status
libcatalyst-plugin-authentication-perl (PTS)	bullseye	0.10023-3	vulnerable
	bookworm	0.10023-4	vulnerable
	forky, sid, trixie	0.10024-1	vulnerable

The information below is based on the following data on fixed versions.

Package	Type	Release	Fixed Version	Urgency	Origin	Debian Bugs
libcatalyst-plugin-authentication-perl	source	(unstable)	(unfixed)			1137325

Notes

[trixie] - libcatalyst-plugin-authentication-perl <no-dsa> (Minor issue)
[bookworm] - libcatalyst-plugin-authentication-perl <no-dsa> (Minor issue)
[bullseye] - libcatalyst-plugin-authentication-perl <postponed> (Minor issue, side channel)
https://lists.security.metacpan.org/cve-announce/msg/40281889/
https://github.com/perl-catalyst/Catalyst-Plugin-Authentication/commit/b0515f492257438cf07082acf1e10d06e8088a5e (v0.10_025)