Vulnerability DatabaseCVE-2026-9641
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CVE-2026-9641
Published:June 12, 2026
Updated:June 29, 2026
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 Packages
https://github.com/arodland/Crypt-PBKDF2.git (GITHUB):
Affected version(s) >=v0.101160 <0.261630
Fix Suggestion:
Update to version 0.261630
Related Resources (7)
https://metacpan.org/release/ARODLAND/Crypt-PBKDF2-0.261630/changes
http://www.openwall.com/lists/oss-security/2026/06/14/1
http://www.openwall.com/lists/oss-security/2026/06/13/1
https://cheatsheetseries.owasp.org/cheatsheets/Password_Storage_Cheat_Sheet.html#pbkdf2
http://www.openwall.com/lists/oss-security/2026/06/14/2
http://www.openwall.com/lists/oss-security/2026/06/12/5
http://www.openwall.com/lists/oss-security/2026/06/14/3
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CVSS v4
Base Score:
6.9
Attack Vector
NETWORK
Attack Complexity
LOW
Attack Requirements
NONE
Privileges Required
NONE
User Interaction
NONE
Vulnerable System Confidentiality
LOW
Vulnerable System Integrity
NONE
Vulnerable System Availability
NONE
Subsequent System Confidentiality
NONE
Subsequent System Integrity
NONE
Subsequent System Availability
NONE
CVSS v3
Base Score:
5.3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
LOW
Integrity
NONE
Availability
NONE
Weakness Type (CWE)
Use of Password Hash With Insufficient Computational Effort
CWE-916
EPSS
Base Score:
0.23