CPANSA-WWW-OAuth-2025-40905: WWW-OAuth vulnerability
| Publisher | giterlizzi | Document category | csaf_security_advisory |
|---|---|---|---|
| Initial release date | 2026-02-13T00:00:00 | Engine | CSAF Perl Toolkit 0.26 |
| Current release date | 2026-02-13T00:00:00 | Build Date | |
| Current version | 1 | Status | final |
| CVSS v3.1 Base Score | 7.3 | Severity | |
| Original language | Language | en | |
| Also referred to | |||
Vulnerability 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.
Vulnerabilities
CVE-2025-40905
Vulnerability DescriptionWWW::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.
| Weakness | CWE-338 : Use of Cryptographically Weak Pseudo-Random Number Generator (PRNG) |
|---|
Product status
Known affected
| Product | Score | ||||||||
|---|---|---|---|---|---|---|---|---|---|
| WWW-OAuth less than or equal 1.000 |
|
Fixed
- WWW-OAuth greater than or equal 1.001
giterlizzi
Namespace: https://github.com/giterlizzi/
gdt@cpan.org
References
- CPANSA-WWW-OAuth-2025-40905 JSON self
https://raw.githubusercontent.com/giterlizzi/perl-CPANSA-CSAF/develop/csaf/white/2026/cpansa-www-oauth-2025-40905.json - https://metacpan.org/release/DBOOK/WWW-OAuth-1.000/source/lib/WWW/OAuth.pm#L86 external
https://metacpan.org/release/DBOOK/WWW-OAuth-1.000/source/lib/WWW/OAuth.pm#L86 - https://perldoc.perl.org/functions/rand external
https://perldoc.perl.org/functions/rand - https://security.metacpan.org/docs/guides/random-data-for-security.html external
https://security.metacpan.org/docs/guides/random-data-for-security.html - http://www.openwall.com/lists/oss-security/2026/02/13/1 external
http://www.openwall.com/lists/oss-security/2026/02/13/1 - CVE-2025-40905 (NVD) external
https://nvd.nist.gov/vuln/detail/CVE-2025-40905
Revision history
| Version | Date of the revision | Summary of the revision |
|---|---|---|
| 1 | Fri Feb 13 00:00:00 2026 | First release |
Sharing rules
TLP:WHITE
For the TLP version see: https://www.first.org/tlp/