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CVE-2026-49834
MEDIUM(5.9)CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N
Risk Signal Score25/100 — MITTEL
- CVSS 5.9 — Mittel
- Weniger als 24 Stunden alt
Beschreibung
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.
GitHub Advisories
GHSA-9vcr-p3rj-q5q6MEDIUM
sigstore-go has a multi-log threshold bypass via single compromised log
go/github.com/sigstore/sigstore-go→ 1.2.0
GitHub Advisory