CVE-2025-40920Catalyst::Authentication::Credential::HTTP versions 1.018 and earlier for Perl use insecurely generated nonces
- 8.6HighCVSS base score
- 0.49%Exploitation in 30 daysEPSS · top 57% of all CVEs
- NoKnown exploitednot in CISA's KEV catalog
- NonePublic exploitsnone known yet
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.
Timeline
ID reserved
By CPANSec
- 4 months later
· 4 months later
Published
- 5 months later
· 5 months later
Record updated
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| CISA-ADPADP (enrichment) | 3.1 | High8.6 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:L |
| NVDNVD · Deferred | 3.1 | High8.6 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:L |
- EPSS (exploitation in 30 days)
- 0.49% · top 57% of all CVEs (14 Nov 2026)
- CISA SSVC
- Exploitation: none · Automatable: yes · Technical impact: partial
The list uses the assigner's score when there is one, then CISA's, then NVD's: High 8.6.
Affected products
ETHER · Catalyst::Authentication::Credential::HTTP
- affected 0.06 – ≤ 1.018
What to do
Solution: Users are advised to upgrade to Catalyst-Authentication-Credential-HTTP version 1.019 or later.
References
References7
- https://security.metacpan.org/patches/C/Catalyst-Authentication-Credential-HTTP/1.018/CVE-2025-40920-r1.patch (opens in a new tab)patch
- https://github.com/perl-catalyst/Catalyst-Authentication-Credential-HTTP/pull/1 (opens in a new tab)issue-tracking
- https://metacpan.org/release/ETHER/Catalyst-Authentication-Credential-HTTP-1.018/source/lib/Catalyst/Authentication/Credential/HTTP.pm#L391 (opens in a new tab)
- https://datatracker.ietf.org/doc/html/rfc9562#name-security-considerations (opens in a new tab)
- https://datatracker.ietf.org/doc/html/rfc7616#section-5.12 (opens in a new tab)
- https://github.com/perl-catalyst/Catalyst-Authentication-Credential-HTTP/commit/ad2c03aad95406db4ce35dfb670664ebde004c18 (opens in a new tab)patch
- http://www.openwall.com/lists/oss-security/2025/08/12/1 (opens in a new tab)
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- EUVD EUVD-2025-24168 (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://cveledger.app/cve/CVE-2025-40920)Record last updated .