CVE-2026-8700: Crypt::DSA versions before 1.20 for Perl generate seeds using rand

Severity: high (CVSS 7.3 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.4% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2026-05-15 · updated 2026-10-26
Weakness: CWE-331

Description

Crypt::DSA versions before 1.20 for Perl generate seeds using rand. Seeds were generated using Perl's built-in rand function, which is predictable and unsuitable for security usage.

Affected products

TIMLEGGE Crypt::DSA: before 1.20 — fixed in 1.20

How to fix

Upgrade to a fixed version: TIMLEGGE Crypt::DSA 1.20. Check the vendor advisory for mitigations.

References

https://metacpan.org/release/TIMLEGGE/Crypt-DSA-1.20/changes
https://metacpan.org/release/TIMLEGGE/Crypt-DSA-1.20/diff/TIMLEGGE/Crypt-DSA-1.19#lib/Crypt/DSA/KeyChain.pm
http://www.openwall.com/lists/oss-security/2026/05/15/26

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