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High 7.3Published Feb 12, 2026
CVE-2025-40905WWW::OAuth 1.000 and earlier for Perl uses insecure rand() function for cryptographic functions
Updated under an hour ago ()
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It affects DBOOK WWW::OAuth and 1 other product. Add what you run to find out whether that includes you.
No exploitation reported and no EPSS estimate yet.
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WWW::OAuth 1.000 and earlier for Perl uses the rand() function as the default source of entropy, which is not cryptographically secure, for cryptographic functions.
- CVSS
- 7.3 HIGH (v3.1, CISA ADP)CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L
- Weakness (CWE)
- CWE-338
- 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
- Analyzed
- Record last updated
- Feb 17, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
DBOOK WWW::OAuth dbook:www_oauth (from the name) | through 1.000 | CNA record |
dbook www::oauth dbook:www::oauth | through 1.000 | NVD |
References
- https://perldoc.perl.org/functions/randthird-party-advisory
- https://security.metacpan.org/docs/guides/random-data-for-security.htmlthird-party-advisory
- https://metacpan.org/release/DBOOK/WWW-OAuth-1.000/source/lib/WWW/OAuth.pm#L86issue-tracking, product
- http://www.openwall.com/lists/oss-security/2026/02/13/1mailing-list, third-party-advisory
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.