Cloudanix VulnDB

CVE-2026-12205

Critical · 9.1

CVSS

9.1

EPSS

0.3%

Published

Jun 15, 2026

CISA due date

—

The record

Crypt::DSA versions before 1.21 for Perl reused the nonce across signatures, leading to private-key recovery. Crypt::DSA::sign caches the per-signature nonce material in the Key object without ever clearing it. The first sign() on a Key object picks a nonce, and every later sign() on that same object reuses it, producing an identical "r". Keys used to sign more than once with an affected version should be considered compromised.

Affected packages

Ecosystem Package Introduced Fixed

Related vulnerabilities