Description

Harden-Runner is a CI/CD security agent that works like an EDR for GitHub Actions runners. Prior to 2.14.2, a security vulnerability has been identified in the Harden-Runner GitHub Action (Community Tier) that allows outbound network connections to evade audit logging. Specifically, outbound traffic using the sendto, sendmsg, and sendmmsg socket system calls can bypass detection and logging when using egress-policy: audit. This vulnerability is fixed in 2.14.2.

INFO

Published Date :

2026-02-09T18:58:57.074Z

Last Modified :

2026-02-10T16:00:59.966Z

Source :

GitHub_M
AFFECTED PRODUCTS

The following products are affected by CVE-2026-25598 vulnerability.

Vendors Products
Step Security
  • Harden Runner
Stepsecurity
  • Harden-runner
REFERENCES

Here, you will find a curated list of external links that provide in-depth information to CVE-2026-25598.

URL Resource
https://github.com/step-security/harden-runner/releases/tag/v2.14.2 cve-icon cve-icon cve-icon
https://github.com/step-security/harden-runner/security/advisories/GHSA-cpmj-h4f6-r6pq cve-icon cve-icon cve-icon
https://nvd.nist.gov/vuln/detail/CVE-2026-25598 cve-icon
https://www.cve.org/CVERecord?id=CVE-2026-25598 cve-icon
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CVSS Vulnerability Scoring System

Detailed values of each vector for above chart.
Attack Vector
Attack Complexity
Attack Requirements
Privileges Required
User Interaction
VS Confidentiality
VS Integrity
VS Availability
SS Confidentiality
SS Integrity
SS Availability
Detailed values of each vector for above chart.
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality Impact
Integrity Impact
Availability Impact