CVE-2025-40920HIGH 8.6EPSS p30.4%
CVE-2025-40920CVE-2025-40920
Description
Catalyst::Authentication::Credential::HTTP versions 1.018 and earlier for Perl generate nonces using the Perl Data::UUID library.
* Data::UUID does not use a strong cryptographic source for generating UUIDs.
* Data::UUID returns v3 UUIDs, which are generated from known information and are unsuitable for security, as per RFC 9562.
* The nonces should be generated from a strong cryptographic source, as per RFC 7616.
Scoring
| CVSS 3.1 | 8.6 (HIGH) |
| Vector | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:L |
| EPSS | 0.39% probability of exploitation · percentile 30.4% · 2026-06-19T12:03:05Z |
| Published | 2025-08-11 |
| Last modified | 2026-04-15 |
Underlying weaknesses· 2
References
- https://datatracker.ietf.org/doc/html/rfc7616#section-5.12
- https://datatracker.ietf.org/doc/html/rfc9562#name-security-considerations
- https://github.com/perl-catalyst/Catalyst-Authentication-Credential-HTTP/commit/ad2c03aad95406db4ce35dfb670664ebde004c18
- https://github.com/perl-catalyst/Catalyst-Authentication-Credential-HTTP/pull/1
- https://metacpan.org/release/ETHER/Catalyst-Authentication-Credential-HTTP-1.018/source/lib/Catalyst/Authentication/Credential/HTTP.pm#L391
- https://security.metacpan.org/patches/C/Catalyst-Authentication-Credential-HTTP/1.018/CVE-2025-40920-r1.patch
- http://www.openwall.com/lists/oss-security/2025/08/12/1
2
| Type | Target | Confidence | Tier |
|---|---|---|---|
| Weakness | Use of Cryptographically Weak Pseudo-Random Number Generator (PRNG)cwe-338 | 0% | live |
| Weakness | Generation of Predictable Numbers or Identifierscwe-340 | 0% | live |
Related by meaning· 6
Nearest entities by semantic similarity across the cs-graph corpus.