What is CVE-2026-5091?

CVE-2026-5091 is a medium-severity vulnerability in Jjnapiork Catalyst::plugin::authentication, classified under CWE-208. CVSS score: 5.1/10. Published 2026-05-21.

How severe is CVE-2026-5091?

Medium severity. CVSS v3 base score is 5.1 out of 10.

Vulnerability in Jjnapiork Catalyst::plugin::authentication

CVE-2026-5091

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.

EPSS: 0.000 (0.5th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 5.1 (Medium). Vector: 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 — versions 0

Weakness classification (CWE)

CWE-208

References

9b29abf9-4ab0-4765-b253-1875cd9b441e (release-notes)
9b29abf9-4ab0-4765-b253-1875cd9b441e (patch)
af854a3a-2127-422b-91ae-364da2661108

Frequently asked questions

What is CVE-2026-5091?: CVE-2026-5091 is a medium-severity vulnerability in Jjnapiork Catalyst::plugin::authentication, classified under CWE-208. CVSS score: 5.1/10. Published 2026-05-21.
How severe is CVE-2026-5091?: Medium severity. CVSS v3 base score is 5.1 out of 10.