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.
CVSS 5.9EPSS 0.11299999999999999%Risk 0.6
View source- Published
- 2026-07-17 20:17:21
- Affected versions
- <1.2.0
- Type
- Library
- Last modified
- 2026-07-30 13:18:22
- Vector
- CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N