Junglewise Threat Intelligence

CVE-2026-24122: GO-2026-4529 - Cosign considered signatures valid with expired intermediate certificates when transparency log verification is skipped in github.com/sigsto

CVE-2026-24122 · Severity: low · CVSS 3.1 · Published 2026-02-23

Technologies: github.com/sigstore/cosign (Go), github.com/sigstore/cosign/v2 (Go), github.com/sigstore/cosign/v3 (Go). Vendors: Go.

Executive brief

Cosign considered signatures valid with expired intermediate certificates when transparency log verification is skipped in github.com/sigstore/cosign

Affected products

  • Go github.com/sigstore/cosign
  • Go github.com/sigstore/cosign/v2
  • Go github.com/sigstore/cosign/v3

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