CVE-2025-40905

Published: Feb 13, 2026Modified: Jun 17, 2026

7.3

Vector

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

Exploitability: 3.9 / Impact: 3.4

Source: 134c704f-9b21-4f2e-91b3-4a467353bcc0 (Secondary)

Description

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.

Affected (1)

Products: Dbook: Www\

Dbook

1 product

Www\

Configuration A

1 vulnerable

Vulnerable Software	Affected Versions
Dbook Www\	Up to 1.000

Related CWEs

CWE-338

Use of Cryptographically Weak Pseudo-Random Number Generator (PRNG)

The product uses a Pseudo-Random Number Generator (PRNG) in a security context, but the PRNG's algorithm is not cryptographically strong.

References (4)

https://metacpan.org/release/DBOOK/WWW-OAuth-1.000/source/lib/WWW/OAuth.pm#L86

Source: 9b29abf9-4ab0-4765-b253-1875cd9b441e

Issue TrackingProduct

https://perldoc.perl.org/functions/rand

Source: 9b29abf9-4ab0-4765-b253-1875cd9b441e

Third Party Advisory

https://security.metacpan.org/docs/guides/random-data-for-security.html

Source: 9b29abf9-4ab0-4765-b253-1875cd9b441e

Third Party Advisory

http://www.openwall.com/lists/oss-security/2026/02/13/1

Source: af854a3a-2127-422b-91ae-364da2661108

Mailing ListThird Party Advisory

Timeline

No history available yet.