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Medium 5.9Published Jun 12, 2026
CVE-2017-20240Crypt::PBKDF2 versions before 0.261630 for Perl are vulnerable to timing attacks
Updated under an hour ago ()
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It affects ARODLAND Crypt::PBKDF2. Add what you run to find out whether that includes you.
No exploitation reported and no EPSS estimate yet.
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Crypt::PBKDF2 versions before 0.261630 for Perl are vulnerable to timing attacks. These versions use Perl's built-in eq comparison. Discrepancies in timing could be used to guess the underlying derived-key.
- CVSS
- 5.9 MEDIUM (v3.1, CISA ADP)CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N
- Weakness (CWE)
- CWE-208
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- CPANSec
- NVD analysis
- Deferred
- Record last updated
- Jun 12, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
ARODLAND Crypt::PBKDF2 arodland:crypt_pbkdf2 (from the name) | before 0.261630 | CNA record |
References
- https://github.com/arodland/Crypt-PBKDF2/pull/6issue-tracking
- https://metacpan.org/release/ARODLAND/Crypt-PBKDF2-0.161520/source/lib/Crypt/PBKDF2.pm#L123-148
- https://metacpan.org/release/ARODLAND/Crypt-PBKDF2-0.261630/changesrelease-notes
- http://www.openwall.com/lists/oss-security/2026/06/12/3
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.