sigstore-go: sigstore-go is a Go library for Sigstore signing and verification
CVE-2026-49834 is fixed in 2 products on 1 platform, first by DEBIAN-CVE-2026-49834, released July 19, 2026. It is not reported as exploited. Patch Radar priority: High.
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.
Where it's fixed
| Product | Fixed in | Fix | Released |
|---|---|---|---|
| Linux | |||
| govulncheck-vulndb · opensuse-leap 16.0 | 0.0.20260723T184607-160000.1.1 | OPENSUSE-SU-2026:21483-1 | Jul 30, 2026 |
| sigstore-go · Debian 14 | 1.2.1-1 | DEBIAN-CVE-2026-49834 | Jul 19, 2026 |
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