`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 GitHub's 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.
https://github.com/cli/cli/security/advisories/GHSA-fgw4-v983-mgp8
https://github.com/cli/cli/pull/10421
Published: 2025-02-14
Updated: 2026-04-15
Named Vulnerability: GO-2025-3467Named Vulnerability: GHSA-fgw4-v983-mgp8
Base Score: 4.9
Vector: CVSS2#AV:N/AC:H/Au:S/C:N/I:C/A:N
Severity: Medium
Base Score: 6.3
Vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:N/I:H/A:N
Severity: Medium
EPSS: 0.00406