CVE-2025-40905

WWW::OAuth 1.000 and earlier for Perl uses insecure rand() function for cryptographic functions

CVSS 7.3 HIGHEPSS 0.3%CWE-338

Vexday Risk Score

21Low

SSVC decision (CISA)

Track

No exploitation signal → monitor

CVSS 7.3EPSS 0.3%KEV nãoPoC —Nuclei —Metasploit —Patch —

Lifecycle

12 Feb 2026Published on NVD

Recommendation: Monitor — no exploitation signal at the moment.

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:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L

Affected products

DBOOK · WWW::OAuth

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References

https://metacpan.org/release/DBOOK/WWW-OAuth-1.000/source/lib/WWW/OAuth.pm#L86 https://perldoc.perl.org/functions/rand https://security.metacpan.org/docs/guides/random-data-for-security.html http://www.openwall.com/lists/oss-security/2026/02/13/1