CVE-2026-31830

{"id": "CVE-2026-31830", "cveTags": [], "metrics": {"cvssMetricV31": [{"type": "Secondary", "source": "security-advisories@github.com", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 7.5, "attackVector": "NETWORK", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N", "integrityImpact": "HIGH", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "NONE", "privilegesRequired": "NONE", "confidentialityImpact": "NONE"}, "impactScore": 3.6, "exploitabilityScore": 3.9}]}, "published": "2026-03-10T22:16:21.097", "references": [{"url": "https://github.com/sigstore/sigstore-ruby/security/advisories/GHSA-mhg6-2q2v-9h2c", "tags": ["Vendor Advisory"], "source": "security-advisories@github.com"}], "vulnStatus": "Analyzed", "weaknesses": [{"type": "Primary", "source": "security-advisories@github.com", "description": [{"lang": "en", "value": "CWE-252"}]}], "descriptions": [{"lang": "en", "value": "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."}, {"lang": "es", "value": "sigstore-ruby es una implementaci\u00f3n pura de Ruby del comando sigstore verify del proyecto sigstore/cosign. Antes de 0.2.3, Sigstore::Verifier#verify no propaga el VerificationFailure devuelto por verify_in_toto cuando el *digest* del artefacto no coincide con el *digest* en el sujeto de la atestaci\u00f3n in-toto. Como resultado, la verificaci\u00f3n de paquetes DSSE que contienen declaraciones in-toto devuelve VerificationSuccess independientemente de si el artefacto coincide con el sujeto atestiguado. Esta vulnerabilidad est\u00e1 corregida en 0.2.3."}], "lastModified": "2026-03-20T15:19:15.390", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:sigstore:sigstore:*:*:*:*:*:ruby:*:*", "vulnerable": true, "matchCriteriaId": "5DE0DBB4-D942-43C5-B503-D3CBF28B98DA", "versionEndExcluding": "0.2.3"}], "operator": "OR"}]}], "sourceIdentifier": "security-advisories@github.com"}