CVE-2026-64652 json
GitHub CLI: Partial token disclosure in `gh auth status` output
published 2026-08-06 3 mo ago modified 2026-10-19 20 d ago also GHSA-cg6r-mpgc-h9mm , GO-2026-6766 , EUVD-2026-54212
- cvss
- 3.3
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.2%
- EPSS 0.2% chance of exploitation in 30 days, percentile 4%
- public exploits
- 0
- none known
Summary
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.
Patch / fix
- go github.com/cli/cli/v2 2.97.0
- gh openSUSE Leap 16.0 2.98.0-bp160.1.1
- gh openSUSE Tumbleweed 2.97.0-1.1
opensuse advisories openSUSE-SU-2026:21663-1openSUSE-SU-2026:11530-1
CISA SSVC
- Exploitation
- none
- Automatable
- no
- Technical impact
- partial
- Assessed
- 3 mo ago
Exploit prediction
0.15% chance of exploitation in the next 30 days, higher than 4% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.1 | 3.3 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N |
| GitHub | 3.1 | 3.3 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N |
Affected packages
| ecosystem | package | affected | fixed in |
|---|---|---|---|
| go | github.com/cli/cli/v2 | <2.97.0 |
2.97.0 |
| go | github.com/cli/cli | all versions |
no fix listed |
Affected products
- cli cli
Classification
- Weakness
-
- CWE-201 Insertion of Sensitive Information Into Sent Data
References
Sources
- CVE List CVE-2026-64652
- GitHub Advisory GHSA-cg6r-mpgc-h9mm
- NVD CVE-2026-64652
- OSV GO-2026-6766
Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.