CVE-2026-64652
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_<APPID>_<JWT>), 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.
- Score
- CVSS 3.1 3.3 Low
- Status
- Awaiting Analysis - security-advisories@github.com
- Published
- 2026-08-06
- Last modified
- 2026-08-07
- Weaknesses
- CWE-201
Affected products
References
- https://github.com/cli/cli/commit/3f6a16a9f8c7fe9676aa8d8f47b399310dd231c3
- https://github.com/cli/cli/releases/tag/v2.97.0
- https://github.com/cli/cli/security/advisories/GHSA-cg6r-mpgc-h9mm
