CVE-2026-12205
June 15, 2026, 11:16 p.m.
None
No Score
Description
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.
Product(s) Impacted
| Vendor | Product | Versions |
|---|---|---|
| Crypt |
|
|
Weaknesses
Common security weaknesses mapped to this vulnerability.
CWE-323
Reusing a Nonce, Key Pair in Encryption
Nonces should be used for the present occasion and only once.
*CPE(s)
Affected systems and software identified for this CVE.
| Type | Vendor | Product | Version | Update | Edition | Language | Software Edition | Target Software | Target Hardware | Other Information |
|---|---|---|---|---|---|---|---|---|---|---|
| a | crypt | crypt-dsa | <1.21 | / | / | / | / | / | / | / |
Tags
Timeline
Published: June 15, 2026, 11:16 p.m.
Last Modified: June 15, 2026, 11:16 p.m.
Last Modified: June 15, 2026, 11:16 p.m.
Status : Received
CVE has been recently published to the CVE List and has been received by the NVD.
More infoSource
9b29abf9-4ab0-4765-b253-1875cd9b441e
*Disclaimer: Some vulnerabilities do not have an associated CPE. To enhance the data, we use AI to infer CPEs based on CVE details. This is an automated process and might not always be accurate.