Catalyst::Plugin::Authentication versions through 0.10024 for Perl is susceptible to timing attacks

published 2026-05-21 5 mo ago modified 2026-07-23 3 mo ago also EUVD-2026-31353

cvss: 5.1; version 3.1, CNA
cisa kev: Not listed; not in CISA's catalog
epss: 0.2%; EPSS 0.2% chance of exploitation in 30 days, percentile 9%
public exploits: 0; none known

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.

Patch / fix

distros 1 links 1

libcatalyst-plugin-authentication-perl Debian 14 0.10026-1

debian advisories DEBIAN-CVE-2026-5091

github.com/perl-catalyst/Catalyst-Plugin-Authentication@b0515f4 commit

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2026-5091 updated 2026-06-28 cvss 7.5

perl-Catalyst-Plugin-Authentication: Catalyst::Plugin::Authentication: Information disclosure via timing attack

Red Hat All currently supported Red Hat products
not affected: vulnerable code not present

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

CISA SSVC

Exploitation: none
Automatable: no
Technical impact: partial
Assessed: 5 mo ago (2026-05-22)

Exploit prediction

0.20% chance of exploitation in the next 30 days, higher than 9% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by	version	score	vector
CISA ADP	3.1	5.1	CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N
CNA	3.1	5.1	CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N

Affected products

JJNAPIORK Catalyst::Plugin::Authentication

Classification

Weakness

CWE-208 Observable Timing Discrepancy

References

Sources

CVE List CVE-2026-5091
NVD CVE-2026-5091

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.

Summary