gh
is GitHub’s official command line tool. Starting in version 2.49.0 and prior to version 2.67.0, under certain conditions, a bug in GitHubs Artifact Attestation cli tool gh attestation verify
causes it to return a zero exit status when no attestations are present. This behavior is incorrect: When no attestations are present, gh attestation verify
should return a non-zero exit status code, thereby signaling verification failure. An attacker can abuse this flaw to, for example, deploy malicious artifacts in any system that uses gh attestation verify
s exit codes to gatekeep deployments. Users are advised to update gh
to patched version v2.67.0
as soon as possible.
The product detects a specific error, but takes no actions to handle the error.