Description
Catalyst::Plugin::Authentication versions before 0.10029 for Perl allow timing attacks on stored passwords via eq comparisons in the legacy password verifier.

CVE-2026-5091 was fixed in the realm-based verifier. The legacy verifier, used by the deprecated login method, compares clear-text passwords, crypt hashes and base64 digests with eq, so the comparison time depends on how many leading bytes match.

A remote attacker can use response-time differences to guess the stored password or hash.
Published: 2026-11-03
Score: 7.5 High
EPSS: < 1% Very Low
KEV: No
AI Analysis

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Remediation

Vendor Solution

Upgrade to Catalyst-Plugin-Authentication 0.10029 or later.

Tracking

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Advisories

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History

Fri, 06 Nov 2026 19:30:00 +0000

Type Values Removed Values Added
Metrics cvssV3_1

{'score': 5.9, 'vector': 'CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N'}

cvssV3_1

{'score': 7.5, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N'}


Thu, 05 Nov 2026 13:45:00 +0000

Type Values Removed Values Added
References
Metrics threat_severity

None

cvssV3_1

{'score': 5.9, 'vector': 'CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N'}

threat_severity

Moderate


Tue, 03 Nov 2026 17:00:00 +0000

Type Values Removed Values Added
First Time appeared Perl
Perl catalyst::plugin::authentication
Vendors & Products Perl
Perl catalyst::plugin::authentication

Tue, 03 Nov 2026 08:00:00 +0000

Type Values Removed Values Added
Description Catalyst::Plugin::Authentication versions before 0.10029 for Perl allow timing attacks on stored passwords via eq comparisons in the legacy password verifier. CVE-2026-5091 was fixed in the realm-based verifier. The legacy verifier, used by the deprecated login method, compares clear-text passwords, crypt hashes and base64 digests with eq, so the comparison time depends on how many leading bytes match. A remote attacker can use response-time differences to guess the stored password or hash.
Title Catalyst::Plugin::Authentication versions before 0.10029 for Perl allow timing attacks on stored passwords via eq comparisons in the legacy password verifier
Weaknesses CWE-208
References

Subscriptions

Perl Catalyst::plugin::authentication
cve-icon MITRE

Status: PUBLISHED

Assigner: CPANSec

Published:

Updated: 2026-11-06T18:42:56.084Z

Reserved: 2026-08-17T06:30:29.057Z

Link: CVE-2026-74846

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Awaiting Analysis

Published: 2026-11-03T08:17:15.673

Modified: 2026-11-06T19:17:56.923

Link: CVE-2026-74846

cve-icon Redhat

Severity : Moderate

Publid Date: 2026-11-03T07:51:25Z

Links: CVE-2026-74846 - Bugzilla

cve-icon OpenCVE Enrichment

Updated: 2026-11-06T20:45:07Z

Weaknesses