tj-actions/changed-files GitHub Action Embedded Malicious Code
What to do
Apply mitigations as set forth in the CISA instructions linked below. Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
CISA deadline 2025-04-08 · passed 1 year 5 months ago · applies to US federal civilian agencies; used elsewhere as a reference SLA
What happened
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.
Who is affected
tj-actions changed-files GitHub Action. Affected version ranges are listed in the vendor advisory and the NVD entry linked under Sources.
Weakness class: CWE-506.
Timeline
- Added to CISA KEVExploitation in the wild confirmed by CISA
- CISA remediation deadlinepassed 1 year 5 months ago
Sources
- NVD entry for CVE-2025-30066 nvd.nist.gov/vuln/detail/CVE-2025-30066
- CISA Known Exploited Vulnerabilities catalog www.cisa.gov/known-exploited-vulnerabilities-catalog
- cisa.gov www.cisa.gov/news-events/alerts/2025/03/18/supply-chain-compromise-third-party-tj-actionschanged-files-cve-2025-30066-and-reviewdogaction
- github.com github.com/tj-actions/changed-files/blob/45fb12d7a8bedb4da42342e52fe054c6c2c3fd73/README.md?plain=1#L20-L28
- nvd.nist.gov nvd.nist.gov/vuln/detail/CVE-2025-30066