Vulnerability Description
Crypt::PBKDF2 versions before 0.261630 for Perl generate insecure random values for salts. These versions use the built-in rand function, which is predictable and unsuitable for cryptography.
CVSS Score
7.5
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Related Weaknesses (CWE)
References
- https://metacpan.org/dist/Crypt-PBKDF2/source/lib/Crypt/PBKDF2.pm#L86-93
- https://metacpan.org/release/ARODLAND/Crypt-PBKDF2-0.261630/changes
- http://www.openwall.com/lists/oss-security/2026/06/12/4
FAQ
What is CVE-2026-9638?
CVE-2026-9638 is a vulnerability with a CVSS score of 7.5 (HIGH). Crypt::PBKDF2 versions before 0.261630 for Perl generate insecure random values for salts. These versions use the built-in rand function, which is predictable and unsuitable for cryptography.
How severe is CVE-2026-9638?
CVE-2026-9638 has been rated HIGH with a CVSS base score of 7.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-9638?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.