CVE-2026-9641

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 v3 5.3 MEDIUM

5.3^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 3.9 / Impact : 1.4

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact LOW

Integrity Impact NONE

Availability Impact NONE

Scope UNCHANGED

References

Link	Resource
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
http://www.openwall.com/lists/oss-security/2026/06/14/1
http://www.openwall.com/lists/oss-security/2026/06/14/2
http://www.openwall.com/lists/oss-security/2026/06/14/3

Configurations

No configuration.

History

14 Jun 2026, 15:16

Type	Values Removed	Values Added
References		() http://www.openwall.com/lists/oss-security/2026/06/14/3 -

14 Jun 2026, 13:16

Type	Values Removed	Values Added
References		() http://www.openwall.com/lists/oss-security/2026/06/14/1 - () http://www.openwall.com/lists/oss-security/2026/06/14/2 -

13 Jun 2026, 04:17

Type	Values Removed	Values Added
References		() http://www.openwall.com/lists/oss-security/2026/06/13/1 -

12 Jun 2026, 18:16

Type	Values Removed	Values Added
References		() http://www.openwall.com/lists/oss-security/2026/06/12/5 -
CVSS	v2 : ~~unknown~~ v3 : ~~unknown~~	v2 : unknown v3 : 5.3

12 Jun 2026, 16:17

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-06-12 16:16

Updated : 2026-06-17 11:05

NVD link : CVE-2026-9641

Mitre link : CVE-2026-9641

CVE.ORG link : CVE-2026-9641

JSON object : View

Products Affected

No product.

CWE

CWE-916

Use of Password Hash With Insufficient Computational Effort

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