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CVE-2025-40905
WWW::OAuth 1.000 and earlier for Perl uses insecure rand() function for cryptographic functions
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.

INFO

Published Date :

Feb. 13, 2026, 12:16 a.m.

Last Modified :

Feb. 13, 2026, 12:16 a.m.

Remotely Exploit :

No

Source :

9b29abf9-4ab0-4765-b253-1875cd9b441e
Affected Products

The following products are affected by CVE-2025-40905 vulnerability. Even if cvefeed.io is aware of the exact versions of the products that are affected, the information is not represented in the table below.

No affected product recoded yet

: Total Affected Vendor : 0 | Products : 0
Solution
Update WWW::OAuth to a version using a cryptographically secure random number generator.
  • Update WWW::OAuth to a secure version.
  • Use a cryptographically secure random number generator.
References to Advisories, Solutions, and Tools

Here, you will find a curated list of external links that provide in-depth information, practical solutions, and valuable tools related to CVE-2025-40905.

URL Resource
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
CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2025-40905 is associated with the following CWEs:

Common Attack Pattern Enumeration and Classification (CAPEC)

Common Attack Pattern Enumeration and Classification (CAPEC) stores attack patterns, which are descriptions of the common attributes and approaches employed by adversaries to exploit the CVE-2025-40905 weaknesses.

We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).

Results are limited to the first 15 repositories due to potential performance issues.

The following list is the news that have been mention CVE-2025-40905 vulnerability anywhere in the article.

Results are limited to the first 20 news articles due to potential performance issues.

The following table lists the changes that have been made to the CVE-2025-40905 vulnerability over time.

Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.

  • New CVE Received by 9b29abf9-4ab0-4765-b253-1875cd9b441e

    Feb. 13, 2026

    Action Type Old Value New Value
    Added 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.
    Added CWE CWE-338
    Added Reference https://metacpan.org/release/DBOOK/WWW-OAuth-1.000/source/lib/WWW/OAuth.pm#L86
    Added Reference https://perldoc.perl.org/functions/rand
    Added Reference https://security.metacpan.org/docs/guides/random-data-for-security.html
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days. Following chart shows the EPSS score history of the vulnerability.
Vulnerability Scoring Details
No CVSS metrics available for this vulnerability.