Bug 2387724 (CVE-2025-40920)

Summary: CVE-2025-40920 catalyst-authentication-credential-http: Catalyst::Authentication::Credential::HTTP insecure nonce generation
Product: [Other] Security Response Reporter: OSIDB Bzimport <bzimport>
Component: vulnerabilityAssignee: Product Security DevOps Team <prodsec-dev>
Status: NEW --- QA Contact:
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Priority: high    
Version: unspecifiedKeywords: Security
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Hardware: All   
OS: Linux   
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An insecure nonce generation flaw was found in the Catalyst::Authentication::Credential::HTTP perl module, where it does not use a strong cryptographic source for generating nonces. This flaw allows an attacker to decrypt communications.
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oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
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Bug Depends On: 2387729, 2387730    
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Description OSIDB Bzimport 2025-08-11 21:01:20 UTC 
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.