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No exploitation reportedFix available

CVE-2026-5091

No exploitation reported by the sources we read.

  • Published2026-05-21
  • WeaknessCWE-208

Am I affected?

With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.

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.

Timeline

dates in UTC
  1. 2026-05-2122:16CVE publishedNVD

Versions per branch

Products declared by the CNA1 product

As CPANSec, the CNA that assigned this CVE, declared them in the CVE record; versions as written.

  • JJNAPIORK Catalyst::Plugin::Authenticationother versions: not affected

    package Catalyst-Plugin-Authenticationhttps://cpan.org/modules

    Affected
    • ≤ 0.10024no fix statedcustom

Source: the CNA record (CVE Program), © The MITRE Corporation,CVE Terms of UseCVE recordupdated 2026-05-21

Distribution builds and vendor advisories

Packages from OSV.dev and products from the vendors' CSAF advisories.

version not verifiedVersions not verified: read as OSV.dev and the vendors publish them, not checked against each vendor's release list.

Packages

  • libcatalyst-plugin-authentication-perlUbuntu:26.10all versions · no fixed version listed
  • libcatalyst-plugin-authentication-perlUbuntu:26.04:LTSall versions · no fixed version listed
  • libcatalyst-plugin-authentication-perlUbuntu:25.10all versions · no fixed version listed
  • libcatalyst-plugin-authentication-perlUbuntu:24.04:LTSall versions · no fixed version listed
  • libcatalyst-plugin-authentication-perlUbuntu:22.04:LTSall versions · no fixed version listed
  • libcatalyst-plugin-authentication-perlUbuntu:20.04:LTSall versions · no fixed version listed
  • libcatalyst-plugin-authentication-perlUbuntu:18.04:LTSall versions · no fixed version listed
  • libcatalyst-plugin-authentication-perlUbuntu:16.04:LTSall versions · no fixed version listed

4 more package ranges on OSV.dev

Full record on NVD

Fix

No fix published by the sources we read yet. NVD record

Detection

Nuclei template
none so far
ProjectDiscovery
Exploit-DB
no entry
Exploit-DB
Proof of concept
Metasploit modules
none listed
Metasploit Framework

Sources

Identifiers

Technical details

CVSS v3 Vector
CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N
Published
2026-05-21
Last Modified
2026-07-23
NVD status
Deferred
GitHub Advisory
GHSA-37jv-v9vv-wxwv

Frequently asked questions

What is 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.

Is CVE-2026-5091 actively exploited?

Active exploitation of CVE-2026-5091 has not been confirmed. Its EPSS score was 0.2% on 2026-11-05, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2026-5091?

CVE-2026-5091 has a CVSS v3 base score of 5.1 (MEDIUM severity), with vector string CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N.

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