CVE-2026-25598

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.
Configurations

Configuration 1 (hide)

cpe:2.3:a:stepsecurity:harden-runner:*:*:*:*:community:*:*:*

History

28 Feb 2026, 00:23

Type Values Removed Values Added
References () https://github.com/step-security/harden-runner/releases/tag/v2.14.2 - () https://github.com/step-security/harden-runner/releases/tag/v2.14.2 - Release Notes
References () https://github.com/step-security/harden-runner/security/advisories/GHSA-cpmj-h4f6-r6pq - () https://github.com/step-security/harden-runner/security/advisories/GHSA-cpmj-h4f6-r6pq - Vendor Advisory
CVSS v2 : unknown
v3 : unknown
v2 : unknown
v3 : 5.3
Summary
  • (es) Harden-Runner es un agente de seguridad de CI/CD que funciona como un EDR para los runners de GitHub Actions. Antes de 2.14.2, se ha identificado una vulnerabilidad de seguridad en la acción de GitHub Harden-Runner (Nivel Comunitario) que permite que las conexiones de red salientes evadan el registro de auditoría. Específicamente, el tráfico saliente que utiliza las llamadas al sistema de socket sendto, sendmsg y sendmmsg puede eludir la detección y el registro cuando se utiliza egress-policy: audit. Esta vulnerabilidad está corregida en 2.14.2.
CPE cpe:2.3:a:stepsecurity:harden-runner:*:*:*:*:community:*:*:*
First Time Stepsecurity harden-runner
Stepsecurity

09 Feb 2026, 20:15

Type Values Removed Values Added
New CVE

Information

Published : 2026-02-09 20:15

Updated : 2026-02-28 00:23


NVD link : CVE-2026-25598

Mitre link : CVE-2026-25598

CVE.ORG link : CVE-2026-25598


JSON object : View

Products Affected

stepsecurity

  • harden-runner
CWE
CWE-778

Insufficient Logging