CVE-2026-49834 sigstore-go: Multi-log threshold bypass via single compromised log

sigstore-go is a Go library for Sigstore signing and verification. Prior to 1.2.0, a verifier configured with WithTransparencyLogN1 or WithSignedCertificateTimestampsN1 counts verified witnesses per entry or per validation path rather than per log authority, allowing a single compromised...

CVE-2026-49834 sigstore-go: Multi-log threshold bypass via single compromised log

sigstore-go is a Go library for Sigstore signing and verification. Prior to 1.2.0, a verifier configured with WithTransparencyLogN1 or WithSignedCertificateTimestampsN1 counts verified witnesses per entry or per validation path rather than per log authority, allowing a single compromised...

CVE-2026-49834 sigstore-go: Multi-log threshold bypass via single compromised log

sigstore-go is a Go library for Sigstore signing and verification. Prior to 1.2.0, a verifier configured with WithTransparencyLogN1 or WithSignedCertificateTimestampsN1 counts verified witnesses per entry or per validation path rather than per log authority, allowing a single compromised...

sigstore-go has a multi-log threshold bypass via single compromised log

Impact What kind of vulnerability is it? Who is impacted? A verifier configured with WithTransparencyLogN1 or WithSignedCertificateTimestampsN1 expected defense-in-depth against the compromise of a single log instance. However, threshold counting counted verified witnesses per-entry or...

GHSA-9VCR-P3RJ-Q5Q6 sigstore-go has a multi-log threshold bypass via single compromised log

Impact What kind of vulnerability is it? Who is impacted? A verifier configured with WithTransparencyLogN1 or WithSignedCertificateTimestampsN1 expected defense-in-depth against the compromise of a single log instance. However, threshold counting counted verified witnesses per-entry or...