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Cosign verification accepts any valid Rekor entry under certain conditions in github.com/sigstore/cosign

Cosign verification accepts any valid Rekor entry under certain conditions in github.com/sigstore/cosign

CVE-2026-22703Published 7 months agoUpdated 2 days agoSource: OSV

Affected packages

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

Exploit signal

Known exploited (CISA KEV)
No
EPSS score
—
EPSS percentile
—

EPSS is the probability a CVE is exploited in the wild; percentile is its rank among all CVEs.

Sources

Structured record: https://osv.dev/vulnerability/GO-2026-4309

Recommended response stack

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Cosign verification accepts any valid Rekor entry under certain conditions in github.com/sigstore/cosign | HackTribune