{"id":"UBUNTU-CVE-2026-64652","details":"GitHub CLI (gh) is GitHub's official command line tool. Prior to version 2.97.0, gh auth status masked only the characters after the last underscore in certain fine-grained personal access tokens and GitHub App tokens. As a result, part of an affected token could appear in terminal or CI output that is captured or shared. Authenticated users are affected if they ran gh auth status (without the --show-token flag) with a token type whose format contains an underscore after the prefix. This includes fine-grained personal access tokens (github_pat_*) and GitHub App installation and user access tokens (ghs_*, ghu_*; for example, ghs_\u003cAPPID\u003e_\u003cJWT\u003e), as well as the Actions GITHUB_TOKEN. Classic tokens such as gho_* and ghp_* have an underscore-free body and are not affected. This issue is fixed in version 2.97.0.","modified":"2026-08-13T00:13:01Z","published":"2026-08-06T22:18:00Z","upstream":["CVE-2026-64652"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2026-64652"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2026-64652"},{"type":"REPORT","url":"https://github.com/cli/cli/commit/3f6a16a9f8c7fe9676aa8d8f47b399310dd231c3"},{"type":"REPORT","url":"https://github.com/cli/cli/releases/tag/v2.97.0"},{"type":"REPORT","url":"https://github.com/cli/cli/security/advisories/GHSA-cg6r-mpgc-h9mm"}],"affected":[{"package":{"name":"gh","ecosystem":"Ubuntu:22.04:LTS","purl":"pkg:deb/ubuntu/gh?arch=source&distro=jammy"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["2.4.0+dfsg1-1","2.4.0+dfsg1-2"],"ecosystem_specific":{"binaries":[{"binary_name":"gh","binary_version":"2.4.0+dfsg1-2"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-64652.json"}},{"package":{"name":"gh","ecosystem":"Ubuntu:Pro:24.04:LTS","purl":"pkg:deb/ubuntu/gh?arch=source&distro=esm-apps%2Fnoble"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["2.27.0+dfsg1-1build1","2.30.0-2","2.35.0-1","2.40.1+dfsg1-1","2.42.1-1","2.43.1-1","2.44.1-1","2.44.1-2","2.45.0-1","2.45.0-1build1","2.45.0-1ubuntu0.1","2.45.0-1ubuntu0.2","2.45.0-1ubuntu0.2+esm1","2.45.0-1ubuntu0.2+esm2","2.45.0-1ubuntu0.3","2.45.0-1ubuntu0.3+esm1","2.45.0-1ubuntu0.3+esm2","2.45.0-1ubuntu0.3+esm3"],"ecosystem_specific":{"binaries":[{"binary_name":"gh","binary_version":"2.45.0-1ubuntu0.3+esm3"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-64652.json"}},{"package":{"name":"gh","ecosystem":"Ubuntu:Pro:26.04:LTS","purl":"pkg:deb/ubuntu/gh?arch=source&distro=esm-apps%2Fresolute"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["2.46.0-3","2.46.0-4","2.46.0-4ubuntu0.26.04.1~esm1"],"ecosystem_specific":{"binaries":[{"binary_version":"2.46.0-4ubuntu0.26.04.1~esm1","binary_name":"gh"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-64652.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N"},{"type":"Ubuntu","score":"medium"}]}