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CVE Vulnerability Details :
CVE-2025-40905
PUBLISHED
More InfoOfficial Page
Assigner-CPANSec
Assigner Org ID-9b29abf9-4ab0-4765-b253-1875cd9b441e
View Known Exploited Vulnerability (KEV) details
Published At-12 Feb, 2026 | 23:39
Updated At-17 Feb, 2026 | 15:05
Rejected At-
▼CVE Numbering Authority (CNA)
WWW::OAuth 1.000 and earlier for Perl uses insecure rand() function for cryptographic functions

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 Products
Vendor
DBOOK
Product
WWW::OAuth
Collection URL
https://cpan.org/modules
Package Name
WWW-OAuth
Program Files
  • lib/WWW/OAuth.pm
Default Status
unaffected
Versions
Affected
  • From 0 through 1.000 (custom)
Problem Types
TypeCWE IDDescription
CWECWE-338CWE-338 Use of Cryptographically Weak Pseudo-Random Number Generator (PRNG)
Type: CWE
CWE ID: CWE-338
Description: CWE-338 Use of Cryptographically Weak Pseudo-Random Number Generator (PRNG)
Metrics
VersionBase scoreBase severityVector
Metrics Other Info
Impacts
CAPEC IDDescription
Solutions

Upgrade to WWW::OAuth 1.001 or higher

Configurations
Workarounds
Exploits
Credits
finder
Robert Rothenberg (RRWO)
Timeline
EventDate
Replaced By
Rejected Reason
References
HyperlinkResource
https://perldoc.perl.org/functions/rand
N/A
https://security.metacpan.org/docs/guides/random-data-for-security.html
N/A
https://metacpan.org/release/DBOOK/WWW-OAuth-1.000/source/lib/WWW/OAuth.pm#L86
N/A
Hyperlink: https://perldoc.perl.org/functions/rand
Resource: N/A
Hyperlink: https://security.metacpan.org/docs/guides/random-data-for-security.html
Resource: N/A
Hyperlink: https://metacpan.org/release/DBOOK/WWW-OAuth-1.000/source/lib/WWW/OAuth.pm#L86
Resource: N/A
▼Authorized Data Publishers (ADP)
1. CVE Program Container
Affected Products
Metrics
VersionBase scoreBase severityVector
Metrics Other Info
Impacts
CAPEC IDDescription
Solutions
Configurations
Workarounds
Exploits
Credits
Timeline
EventDate
Replaced By
Rejected Reason
References
HyperlinkResource
http://www.openwall.com/lists/oss-security/2026/02/13/1
N/A
Hyperlink: http://www.openwall.com/lists/oss-security/2026/02/13/1
Resource: N/A
2. CISA ADP Vulnrichment
Affected Products
Metrics
VersionBase scoreBase severityVector
3.17.3HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L
Version: 3.1
Base score: 7.3
Base severity: HIGH
Vector:
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L
Metrics Other Info
Impacts
CAPEC IDDescription
Solutions
Configurations
Workarounds
Exploits
Credits
Timeline
EventDate
Replaced By
Rejected Reason
References
HyperlinkResource
Details not found