{"id":"CVE-2026-49834","revision":"b7b5ecbf0f6448f6ada160a741452abe","records":[{"revision":"b7b5ecbf0f6448f6ada160a741452abe","observedAt":"2026-10-25T12:17:38.331+00:00","statement":{"source":"nvd","id":"CVE-2026-49834","aliases":[],"title":"sigstore-go is a Go library for Sigstore signing and verification. Prior to 1.2.0, a verifier configured with WithTransparencyLog(N>1) or WithSignedCertificateTimestamps(N>1) counts verified witnesses per entry or per validation path rather…","description":"sigstore-go is a Go library for Sigstore signing and verification. Prior to 1.2.0, a verifier configured with WithTransparencyLog(N>1) or WithSignedCertificateTimestamps(N>1) counts verified witnesses per entry or per validation path rather than per log authority, allowing a single compromised transparency log or CT log to satisfy multi-log threshold requirements and defeat the multi-log policy. This issue is fixed in version 1.2.0.","state":0,"publishedAt":"2026-07-17T20:17:21.963+00:00","modifiedAt":"2026-10-24T20:10:00.137+00:00","affected":[],"metrics":[{"system":"CVSS 3.1 · security-advisories@github.com · Secondary","vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N","score":5.9,"severity":"MEDIUM"},{"system":"CVSS 3.1 · nvd@nist.gov · Primary","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N","score":7.5,"severity":"HIGH"}],"references":["https://github.com/sigstore/sigstore-go/commit/dbb07e62623edd5b175fb9dd5a41dcb85a159207","https://github.com/sigstore/sigstore-go/pull/633","https://github.com/sigstore/sigstore-go/releases/tag/v1.2.0","https://github.com/sigstore/sigstore-go/security/advisories/GHSA-9vcr-p3rj-q5q6"],"sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-49834","license":"NIST NVD usage terms; underlying source attribution retained","enrichment":{"sourceStatus":"Analyzed","weaknesses":["CWE-347"],"productCriteria":["cpe:2.3:a:sigstore:sigstore-go:*:*:*:*:*:*:*:*"],"sourceDates":{"published":"2026-07-17T20:17:21.963","lastModified":"2026-10-24T20:10:00.137"},"relatedAdvisories":[],"note":"NVD analysis and CPE criteria are source context, not proof that a package or your environment is affected. Complete affected data, logical configurations and SSVC are retained in the original JSON."},"key":"nvd:CVE-2026-49834","identifiers":["CVE-2026-49834"]},"retained":false,"historicalAffected":[]}],"coverage":[]}