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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.

PUBLISHED Reserved 2026-05-26 | Published 2026-06-12 | Updated 2026-06-14 | Assigner CPANSec

Problem types

CWE-916 Use of Password Hash With Insufficient Computational Effort

Product status

Default status
unaffected

Any version before 0.261630
affected

References

www.openwall.com/lists/oss-security/2026/06/12/5

www.openwall.com/lists/oss-security/2026/06/13/1

www.openwall.com/lists/oss-security/2026/06/14/1

www.openwall.com/lists/oss-security/2026/06/14/2

www.openwall.com/lists/oss-security/2026/06/14/3

cheatsheetseries.owasp.org/...sword_Storage_Cheat_Sheet.html technical-description

metacpan.org/release/ARODLAND/Crypt-PBKDF2-0.261630/changes release-notes

cve.org (CVE-2026-9641)

nvd.nist.gov (CVE-2026-9641)

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