Crypt::PBKDF2 versions before 0.261630 for Perl generate insecure random values for salts
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- High · None · None
- Fix status
- Fixed
Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA.
Summary
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.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- Yes
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
Remediation
- Fix · CNA Crypt::PBKDF2 (ARODLAND) Fixed in 0.261630
Fixed in the same release
Records fixed by the same vendor advisory or release, as the CNA lists them.
- Release ·
ARODLAND Crypt::PBKDF2 0.261630
3 records Highest priority Priority LOW 3 LOW
Other records, highest priority first
- TI-2026-08469 Crypt::PBKDF2 versions before 0.261630 for Perl have a weak default algorithm and number…Priority LOW 29
- TI-2017-14304 Crypt::PBKDF2 versions before 0.261630 for Perl are vulnerable to timing attacksPriority LOW 26
Vendor assessments
Timeline
- 2026-10-02 Threatist record created from CVE-2026-9638
- 2026-10-03 Alias added: GHSA-3rw7-pf56-37cv
References
More ARODLAND vulnerabilities
- TI-2026-08469 Crypt::PBKDF2 versions before 0.261630 for Perl have a weak default algorithm and number… CVSS 3.1MEDIUM 5.3
- TI-2017-14304 Crypt::PBKDF2 versions before 0.261630 for Perl are vulnerable to timing attacks CVSS 3.1MEDIUM 5.9
Sources
- CVE-2026-9638 · CVE Program
- CVE-2026-9638 · NVD
- FIRST EPSS
- GHSA-3rw7-pf56-37cv · GitHub Advisory Database · CC BY 4.0
- CVE-2026-9638 · Red Hat security data · CC BY 4.0
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