CVE-2025-30066 — tj-actions/changed-files GitHub Action Embedded Malicious Code Vulnerability

Overview

tj-actions/changed-files GitHub Action contains an embedded malicious code vulnerability that allows a remote attacker to discover secrets by reading Github Actions Workflow Logs. These secrets may include, but are not limited to, valid AWS access keys, GitHub personal access tokens (PATs), npm tokens, and private RSA keys.

Vulnerability details

CVE ID

CVE-2025-30066

Vulnerability

tj-actions/changed-files GitHub Action Embedded Malicious Code Vulnerability

Vendor

tj-actions

Affected products

tj-actions: changed-files GitHub Action

Severity

HIGH

Exploitation status

Actively exploited in the wild (CISA KEV)

Published

2025-03-18

Remediation guidance

CVE-2025-30066 is in CISA's Known Exploited Vulnerabilities (KEV) catalog — U.S. federal civilian agencies are required to remediate it under Binding Operational Directive 22-01. Treat it as a priority for every environment.

Apply the vendor's official security update for tj-actions the affected product as soon as possible. Where a patch is unavailable, apply vendor mitigations or isolate/segment exposed systems.

Hunt for indicators of compromise tied to this vulnerability and confirm logging/EDR coverage on affected assets.

Authoritative references

• NVD — National Vulnerability Database
• MITRE CVE Record
• CISA Known Exploited Vulnerabilities Catalog
• FIRST EPSS — Exploit Prediction Scoring