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CVE-2026-31830
Ruby vulnerability analysis and mitigation

sigstore-ruby is a pure Ruby implementation of the sigstore verify command from the sigstore/cosign project. Prior to 0.2.3, Sigstore::Verifier#verify does not propagate the VerificationFailure returned by verify_in_toto when the artifact digest does not match the digest in the in-toto attestation subject. As a result, verification of DSSE bundles containing in-toto statements returns VerificationSuccess regardless of whether the artifact matches the attested subject. This vulnerability is fixed in 0.2.3.


SourceNVD

Related Ruby vulnerabilities:

CVE ID

Severity

Score

Technologies

Component name

CISA KEV exploit

Has fix

Published date

CVE-2026-34827HIGH7.5
  • RubyRuby
  • ruby-rack
NoYesApr 02, 2026
CVE-2026-34835MEDIUM4.8
  • RubyRuby
  • ruby-rack
NoYesApr 02, 2026
CVE-2026-32762MEDIUM4.8
  • RubyRuby
  • ruby-rack
NoYesApr 02, 2026
CVE-2026-26962MEDIUM4.8
  • RubyRuby
  • rack
NoYesApr 02, 2026
CVE-2026-34831MEDIUM4.8
  • RubyRuby
  • rack
NoYesApr 02, 2026

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