Affected by GO-2024-2718
and 3 other vulnerabilities
GO-2024-2718: Cosign malicious attachments can cause system-wide denial of service in github.com/sigstore/cosign
GO-2024-2719: Cosign malicious artifacts can cause machine-wide DoS in github.com/sigstore/cosign
GO-2026-4309: Cosign verification accepts any valid Rekor entry under certain conditions in github.com/sigstore/cosign
GO-2026-4529: Cosign considered signatures valid with expired intermediate certificates when transparency log verification is skipped in github.com/sigstore/cosign
SignedEntity calls `fn` on the signed entity and each of its constituent entities
(`SignedImageIndex` or `SignedImage`) transitively.
Any errors returned by an `fn` are returned by `Walk`.
Fn is the signature of the callback supplied to SignedEntity.
The oci.SignedEntity is either an oci.SignedImageIndex or an oci.SignedImage.
This callback is called on oci.SignedImageIndex *before* its children.