sigstore sigstore-go

• CVE-2026-54787 Low 3.1 sigstore-go fails to check signature timestamps against a signing key's validity period 0.1%
• CVE-2026-49834 Medium 5.9 sigstore-go: Multi-log threshold bypass via single compromised log 0.2%
• CVE-2024-45395 Low 3.1 Unbounded loop over untrusted input can lead to endless data attack 0.5%