CVE-2025-40920: Ether Catalyst::authentication::credential::http

High severity, CVSS 8.6. EPSS: 0.4% chance of exploitation in the next 30 days.

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.

Affected products

• Ether Catalyst::authentication::credential::http: from 0.06, up to and including 1.018

Published 2025-08-11. Last modified 2026-06-17.