CVE-2024-53859

CVE-2024-53859 is a medium-severity security vulnerability in github.com/cli/go-gh/v2 (go), affecting versions <= 2.11.0. It is fixed in 2.11.1.

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Summary

auth.TokenForHost violates GitHub host security boundary when sourcing authentication token within a codespace

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.

Details

go-gh sources authentication tokens from different environment variables depending on the host involved:

  • GITHUB_TOKEN, GH_TOKEN for GitHub.com and ghe.com
  • GITHUB_ENTERPRISE_TOKEN, GH_ENTERPRISE_TOKEN for GitHub Enterprise Server

Prior to 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 2.11.1, auth.TokenForHost will only source a token from the GITHUB_TOKEN environment variable for GitHub.com or ghe.com hosts.

Remediation and mitigation

  1. Upgrade go-gh to 2.11.1
  2. Advise extension users to regenerate authentication tokens:
  3. Advise extension users to review their personal security log and any relevant audit logs for actions associated with their account or enterprise

Impact

Successful exploitation could send authentication token to an unintended host.

CVE-2024-53859 has a CVSS score of 6.5 (Medium). The vector is requires local access, no privileges required, and user interaction required. A CVSS score reflects the worst-case severity of the vulnerability, not your specific exposure. Whether this affects your application depends on whether the vulnerable code is present and reachable in your environment. A fixed version is available (2.11.1); upgrading removes the vulnerable code path.

Affected versions

github.com/cli/go-gh/v2 (<= 2.11.0) github.com/cli/go-gh (< 2.11.1)

Security releases

github.com/cli/go-gh/v2 → 2.11.1 (go)

Kodem intelligence

Severity tells you how bad this could be in the worst case. It does not tell you whether you are exposed. Exploitability and impact are functions of runtime truth: whether the vulnerable code is present, reachable, and actually executes in your application. A vulnerable package can sit in your dependency tree and never run.

Kodem, an Intelligent Application Security platform, uses runtime intelligence to reveal which vulnerabilities actually execute in production, so teams prioritize the ones that genuinely matter. Kodem's runtime-powered SCA identifies whether this CVE is reachable in your applications.

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Remediation advice

Upgrade github.com/cli/go-gh/v2 to 2.11.1 or later to resolve this vulnerability.

Kodem Kai can prioritize this vulnerability in your dependency tree and generate a fix recommendation.

Frequently Asked Questions

  1. What is CVE-2024-53859? CVE-2024-53859 is a medium-severity security vulnerability in github.com/cli/go-gh/v2 (go), affecting versions <= 2.11.0. It is fixed in 2.11.1.
  2. How severe is CVE-2024-53859? CVE-2024-53859 has a CVSS score of 6.5 (Medium). This score reflects the worst-case severity of the vulnerability, not your specific exposure. Whether it represents real risk in your environment depends on whether the vulnerable code is present and reachable.
  3. Which packages are affected by CVE-2024-53859?
    • github.com/cli/go-gh/v2 (go) (versions <= 2.11.0)
    • github.com/cli/go-gh (go) (versions < 2.11.1)
  4. Is there a fix for CVE-2024-53859? Yes. CVE-2024-53859 is fixed in 2.11.1. Upgrade to this version or later.
  5. Is CVE-2024-53859 exploitable, and should I be worried? Whether CVE-2024-53859 is exploitable in your environment depends on whether the vulnerable code is present and reachable. A CVSS score is a worst-case rating; it does not account for your specific deployment, configuration, or usage patterns. Kodem, an Intelligent Application Security platform, uses runtime intelligence to show which vulnerabilities actually execute in production, so you can focus on the ones that represent real risk. Get a demo
  6. What actually determines whether CVE-2024-53859 is exploitable, and how bad it is? Exploitability and impact are not fixed properties of a CVE. They depend on runtime truth: whether the vulnerable code is present, reachable, and actually executes in your application. A high CVSS score on a dependency that never runs is not the same as real risk. Kodem, an Intelligent Application Security platform, uses runtime intelligence to reveal which vulnerabilities actually execute in production, so teams prioritize the ones that genuinely matter.
  7. How do I fix CVE-2024-53859? Upgrade github.com/cli/go-gh/v2 to 2.11.1 or later.

Other vulnerabilities in github.com/cli/go-gh/v2

CVE-IDSeverityPackage summary
CVE-2025-48938Mediumgithub.com/cli/go-gh/v2: Prevent GitHub CLI and extensions from executing arbitrary commands from compromised GitHub Enterprise Server

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