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CVE-2025-32955 Detail

Description

Harden-Runner is a CI/CD security agent that works like an EDR for GitHub Actions runners. Versions from 0.12.0 to before 2.12.0 are vulnerable to `disable-sudo` bypass. Harden-Runner includes a policy option `disable-sudo` to prevent the GitHub Actions runner user from using sudo. This is implemented by removing the runner user from the sudoers file. However, this control can be bypassed as the runner user, being part of the docker group, can interact with the Docker daemon to launch privileged containers or access the host filesystem. This allows the attacker to regain root access or restore the sudoers file, effectively bypassing the restriction. This issue has been patched in version 2.12.0.


Metrics

NVD enrichment efforts reference publicly available information to associate vector strings. CVSS information contributed by other sources is also displayed.
CVSS 4.0 Severity and Vector Strings:

NIST CVSS score
NIST: NVD
N/A
NVD assessment not yet provided.

References to Advisories, Solutions, and Tools

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URL Source(s) Tag(s)
https://github.com/step-security/harden-runner/commit/0634a2670c59f64b4a01f0f96f84700a4088b9f0 GitHub, Inc.
https://github.com/step-security/harden-runner/releases/tag/v2.12.0 GitHub, Inc.
https://github.com/step-security/harden-runner/security/advisories/GHSA-mxr3-8whj-j74r GitHub, Inc.

Weakness Enumeration

CWE-ID CWE Name Source
CWE-268 Privilege Chaining GitHub, Inc.  
CWE-269 Improper Privilege Management GitHub, Inc.  

Change History

1 change records found show changes

Quick Info

CVE Dictionary Entry:
CVE-2025-32955
NVD Published Date:
04/21/2025
NVD Last Modified:
04/23/2025
Source:
GitHub, Inc.