CVE-2026-9641

Description

Crypt::PBKDF2 versions before 0.261630 for Perl have a weak default algorithm and number of iterations. The default algorithm is HMAC-SHA1, which should only be used for legacy systems. These versions default to using 1000 iterations. Depending on the chosen algorithm, 220,000 to 1,400,000 iterations should be used.

CVSS Vector

References

• https://cheatsheetseries.owasp.org/cheatsheets/Password_Storage_Cheat_Sheet.html#pbkdf2
• https://metacpan.org/release/ARODLAND/Crypt-PBKDF2-0.261630/changes
• http://www.openwall.com/lists/oss-security/2026/06/12/5
• http://www.openwall.com/lists/oss-security/2026/06/13/1