# CVE-2026-25598

## Summary

- **CVE ID:** CVE-2026-25598
- **Severity:** MEDIUM
- **CVSS Score:** 6.3 (CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N)
- **CWE:** CWE-778
- **Published:** Feb 9, 2026
- **Last Modified:** Mar 12, 2026

## 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.

## Affected Products

- step-security — harden-runner (< 2.14.2)

## References

- [CNA](https://github.com/step-security/harden-runner/security/advisories/GHSA-cpmj-h4f6-r6pq)
- [CNA](https://github.com/step-security/harden-runner/releases/tag/v2.14.2)

## Exploitation Prediction (EPSS)

- **EPSS Score:** 0.32%
- **EPSS Percentile:** 24.6

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_Exported from OnDuty AI Vulnerability Intelligence on 2026-09-12._