CVE-2026-9641: Arodland crypt::pbkdf2

Medium severity, CVSS 5.3. EPSS: 0.3% chance of exploitation in the next 30 days.

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.

Affected products

• Arodland crypt::pbkdf2: before 0.261630 (fixed in 0.261630)

Published 2026-06-12. Last modified 2026-06-17.