CVE-2026-12205 (GCVE-0-2026-12205)
Vulnerability from cvelistv5
Published
2026-06-15 21:57
Modified
2026-06-16 16:13
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-323 - Reusing a Nonce, Key Pair in Encryption
Summary
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.
References
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| TIMLEGGE | Crypt::DSA |
Version: 0 < 1.21 |
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Sightings
| Author | Source | Type | Date |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
- Confirmed: The vulnerability is confirmed from an analyst perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
- Patched: This vulnerability was successfully patched by the user reporting the sighting.
- Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
- Not confirmed: The user expresses doubt about the veracity of the vulnerability.
- Not patched: This vulnerability was not successfully patched by the user reporting the sighting.
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