CVE-2026-14570: Crypt::DSA versions before 1.22 for Perl draw the DSA signing nonce and private key from a biased random generator, leading to private-key recovery
TIMLEGGE · Crypt::DSA
Fixed in 1.22 · Affected: TIMLEGGE Crypt::DSA before 1.22 · Exploitation: unlikely (under 1%)
Not in CyberSIXT coverage yet: no article names this CVE. This page shows the public record.
Higher than 44% of scored CVEs
DescriptionCVE.org
Crypt::DSA versions before 1.22 for Perl draw the DSA signing nonce and private key from a biased random generator, leading to private-key recovery. "Crypt::DSA::Util::makerandom forces the high bit of every value it returns to obtain an exactly N-bit integer for prime search. The signing nonce and the private key are drawn from makerandom. Because the high bit is always set, the result is not uniform: its top bit is fixed, producing insecure values." An attacker who collects a modest number of signatures under an affected key, together with the public key, can recover the private key with a lattice attack. Keys used to sign with an affected version should be considered compromised and new keys should be generated.
Affected products1
From the CVE record. A product or version that is not listed is unknown, not unaffected.
- TIMLEGGE · Crypt::DSAbefore 1.22
On the Atlas
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CoverageNo articles yet
No CyberSIXT article names CVE-2026-14570 yet, so there is no coverage timeline, action brief or change log for it. Everything on this page comes from the public CVE record, CISA KEV, EPSS and the nuclei template index. Search the archive or see the CVEs in the news.
References
- NVD entrynvd.nist.gov
- CVE recordcve.org
- Weakness CWE-330cwe.mitre.org
- Release notesmetacpan.org
- metacpan.org/release/TIMLEGGE/Crypt-DSA-1.21/source/lib/Crypt/DSmetacpan.org
- metacpan.org/release/TIMLEGGE/Crypt-DSA-1.22/diff/TIMLEGGE/Cryptmetacpan.org
- openwall.com/lists/oss-security/2026/07/05/1openwall.com