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CVE record · CVE-2026-12205

Crypt::DSA versions before 1.21 for Perl reused the nonce across signatures, leading to private-key recovery

CVSS 9.1 CriticalCriticalEPSS 0.0029 · 21st percentile

Critical, because:

  • CVSS score 9.1: 9.0 or more.

How we decide what’s critical

Published by the CVE Program (CNA: CPANSec) at 15 Jun 2026, 21:57 UTC. agentprime has not analysed this yet, so whether it affects any app is not known. This CVE names a vendor and product rather than a package, so the lockfile check doesn’t match it.

Affected products, as the CNA wrote them
VendorProductVersions
TIMLEGGE Crypt::DSA Package name: Crypt-DSA https://cpan.org/modules
  • affected before 1.21 custom
Other versions: unaffected
Identifiers
CVE-2026-12205
CNA
CPANSec
Weakness (CWE)
CWE-323
Tags
Published
15 Jun 2026
Updated
16 Jun 2026

Not analysed yet

We haven’t published our own analysis of this CVE. If a person reviews it, this page will say what’s affected and what has to be true for it to matter.

Severity and exploitation

ScoreRatingCVSSVectorSource
9.1 Critical 3.1 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N ADP (CISA-ADP)
  • CISA KEV Not listed.
  • EPSS 0.0029, the 21st percentile, on 6 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.

Timeline

This record came from the full history of the CVE Program, published 15 Jun 2026. New records show when each source confirmed them.

Sources

References from the CNA

Facts on this page come from the CVE List as the CNA published them, with CVSS from the sources named above, CISA KEV and FIRST EPSS. Vendors, products and versions are shown as the CNA wrote them. We don’t reproduce the CVE’s description.