Description
Crypt::PBKDF2 versions before 0.261630 for Perl are vulnerable to timing attacks.

These versions use Perl's built-in eq comparison. Discrepancies in timing could be used to guess the underlying derived-key.
Published: 2026-06-12
Score: 5.9 Medium
EPSS: < 1% Very Low
KEV: No
Impact: n/a
Action: n/a
AI Analysis

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Remediation

Vendor Solution

Upgrade to version 0.261630 or later.


Vendor Workaround

Apply the patch from the referenced pull request.

Tracking

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Advisories

No advisories yet.

History

Fri, 12 Jun 2026 20:45:00 +0000

Type Values Removed Values Added
First Time appeared Arodland
Arodland crypt::pbkdf2
Vendors & Products Arodland
Arodland crypt::pbkdf2

Fri, 12 Jun 2026 17:30:00 +0000

Type Values Removed Values Added
References

Fri, 12 Jun 2026 16:30:00 +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'}

ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Fri, 12 Jun 2026 13:45:00 +0000

Type Values Removed Values Added
Description Crypt::PBKDF2 versions before 0.261630 for Perl are vulnerable to timing attacks. These versions use Perl's built-in eq comparison. Discrepancies in timing could be used to guess the underlying derived-key.
Title Crypt::PBKDF2 versions before 0.261630 for Perl are vulnerable to timing attacks
Weaknesses CWE-208
References

Subscriptions

Arodland Crypt::pbkdf2
cve-icon MITRE

Status: PUBLISHED

Assigner: CPANSec

Published:

Updated: 2026-06-12T16:59:33.477Z

Reserved: 2026-05-26T18:23:21.387Z

Link: CVE-2017-20240

cve-icon Vulnrichment

Updated: 2026-06-12T16:59:33.477Z

cve-icon NVD

Status : Deferred

Published: 2026-06-12T14:16:28.660

Modified: 2026-06-12T17:16:22.133

Link: CVE-2017-20240

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-06-12T20:20:26Z

Weaknesses