CVE-2026-5091 | Catalyst::Plugin::Authentication versions through 0.10024 for Perl is susceptible to timing attacks

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.

Published: 2026-05-21 Last update: 2026-05-22 Assigner: 9b29abf9-4ab0-4765-b253-1875cd9b441e Source: 9b29abf9-4ab0-4765-b253-1875cd9b441e

Conclusion & alert: CVE-2026-5091 is rated Low Risk (2.1/100): low exploitation likelihood (EPSS 0.01%). Mandatory action: Low composite risk—no urgent action required; patch on your normal maintenance cycle and revisit priority if CVSS or EPSS increases.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Exploit prediction scoring system (EPSS) score for CVE-2026-5091

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-05-22 0.01%

Full EPSS history (1 record total)

Common vulnerability scoring system (CVSS) metrics for CVE-2026-5091

CVSS metrics for this CVE.

No CVSS data in dataset for this CVE.

Weakness enumeration for CVE-2026-5091

GitHub Security Advisory for CVE-2026-5091

GHSA-37jv-v9vv-wxwv · Severity: unknown — Catalyst::Plugin::Authentication versions through 0.10024 for Perl is susceptible to timing...

OS Trackers for CVE-2026-5091

vendor priority summary link
debian not yet assigned CVE-2026-5091 not yet assigned priority: Debian including 1 source packages (libcatalyst-plugin-authentication-perl), 5 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): open 3, resolved 2. https://security-tracker.debian.org/tracker/CVE-2026-5091
ubuntu medium CVE-2026-5091 medium priority: Ubuntu including 1 source packages (libcatalyst-plugin-authentication-perl), 7 status rows across 7 suites (bionic, focal, jammy, noble, questing, resolute, upstream): needs-triage 7. https://ubuntu.com/security/CVE-2026-5091

Affected software / configurations for CVE-2026-5091

Vendor Product Version Raw CPE
No affected products in dataset.

References for CVE-2026-5091

cvelogic Threat Intelligence