Information disclosure in Cli Go-Gh
CVE-2024-53859
go-gh is a Go module for interacting with the `gh` utility and the GitHub API from the command line. A security vulnerability has been identified in `go-gh` that could leak authentication tokens intended for GitHub hosts to non-GitHub hosts when within a codespace. `go-gh` sources authentication tokens from different environment variables depending on the host involved: 1. `GITHUB_TOKEN`, `GH_TOKEN` for GitHub.com and ghe.com and 2. `GITHUB_ENTERPRISE_TOKEN`, `GH_ENTERPRISE_TOKEN` for GitHub Enterprise Server. Prior to version `2.11.1`, `auth.TokenForHost` could source a token from the `GITHUB_TOKEN` environment variable for a host other than GitHub.com or ghe.com when within a codespace. In version `2.11.1`, `auth.TokenForHost` will only source a token from the `GITHUB_TOKEN` environment variable for GitHub.com or ghe.com hosts. Successful exploitation could send authentication token to an unintended host. This issue has been addressed in version 2.11.1 and all users are advised to upgrade. Users are also advised to regenerate authentication tokens and to review their personal security log and any relevant audit logs for actions associated with their account or enterprise.
Vulnerability class: Information Disclosure
Published · last modified .
CVSS v3 metric
CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:L.
EPSS exploit prediction
EPSS: 0.005 (42.6th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 43rd percentile — 42.6% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.005 · newest: 0.005 · change: -0.000
Affected products
- Cli Go-Gh — versions < 2.11.1
Weakness classification (CWE)
References
- github.com/cli/go-gh/security/advisories/GHSA-55v3-xh23-96gh (Mitigation, Vendor Advisory)
- docs.github.com/en/apps/using-github-apps/reviewing-and-revoking-authorization-… (Technical Description)
- docs.github.com/en/authentication/keeping-your-account-and-data-secure/reviewin… (Technical Description)
- docs.github.com/en/enterprise-cloud@latest/admin/monitoring-activity-in-your-en… (Technical Description)
- docs.github.com/en/enterprise-cloud@latest/authentication/keeping-your-account-… (Technical Description)
- github.com/cli/go-gh/blob/71770357e0cb12867d3e3e288854c0aa09d440b7/pkg/auth/aut… (Product)
Frequently asked questions
- What is CVE-2024-53859?
- CVE-2024-53859 is a medium-severity vulnerability in Cli Go-Gh, classified under Information Disclosure. CVSS score: 6.5/10. Published 2024-11-27.
- How severe is CVE-2024-53859?
- Medium severity. CVSS v3 base score is 6.5 out of 10.