PT-2026-48921 · Arodland · Crypt::Pbkdf2

Published 2026-06-12 · Updated 2026-06-12 · CVE-2026-9641

NVD

CVSS v3.1

5.3

Medium

Base vector

AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

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.

Fix

Weakness Enumeration

CWE-916

Related Identifiers

CVE-2026-9641

Affected Products

Crypt::Pbkdf2

References · 4

• https://nvd.nist.gov/vuln/detail/CVE-2026-9641 · Security Note
• https://metacpan.org/release/ARODLAND/Crypt-PBKDF2-0.261630/changes · Note
• http://openwall.com/lists/oss-security/2026/06/12/5 · Note
• https://cheatsheetseries.owasp.org/cheatsheets/Password_Storage_Cheat_Sheet.html#pbkdf2 · Note