tj-actions · changed-files GitHub Action
CVE-2025-30066
tj-actions/changed-files GitHub Action Embedded Malicious Code Vulnerability
CISA KEV record
- CISA date added
- 2025-03-18
- CISA due date
- 2025-04-08
- Known ransomware use
- Unknown
NVD risk context
8.6 HIGH
CVSS is a technical severity score. CISA’s KEV status remains the evidence that this vulnerability is known to be exploited.
Description
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.
Required action
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.
NVD reference index
Vendor and remediation references
NVD has tagged these sources as vendor advisories, patches, mitigations, or release notes.
- https://sysdig.com/blog/detecting-and-mitigating-the-tj-actions-changed-files-supply-chain-attack-cve-2025-30066/ ↗
- https://www.stepsecurity.io/blog/harden-runner-detection-tj-actions-changed-files-action-is-compromised ↗
Other NVD references (19)
- https://blog.gitguardian.com/compromised-tj-actions/ ↗
- https://github.com/chains-project/maven-lockfile/pull/1111 ↗
- https://github.com/espressif/arduino-esp32/issues/11127 ↗
- https://github.com/github/docs/blob/962a1c8dccb8c0f66548b324e5b921b5e4fbc3d6/content/actions/security-for-github-actions/security-guides/security-hardening-for-github-actions.md?plain=1#L191-L193 ↗
- https://github.com/modal-labs/modal-examples/issues/1100 ↗
- https://github.com/rackerlabs/genestack/pull/903 ↗
- https://github.com/tj-actions/changed-files/blob/45fb12d7a8bedb4da42342e52fe054c6c2c3fd73/README.md?plain=1#L20-L28 ↗
- https://github.com/tj-actions/changed-files/issues/2463 ↗
- https://github.com/tj-actions/changed-files/issues/2464 ↗
- https://github.com/tj-actions/changed-files/issues/2477 ↗
- https://news.ycombinator.com/item?id=43367987 ↗
- https://news.ycombinator.com/item?id=43368870 ↗
- https://semgrep.dev/blog/2025/popular-github-action-tj-actionschanged-files-is-compromised/ ↗
- https://web.archive.org/web/20250315060250/https://github.com/tj-actions/changed-files/issues/2463 ↗
- https://www.stream.security/post/github-action-supply-chain-attack-exposes-secrets-what-you-need-to-know-and-how-to-respond ↗
- https://www.sweet.security/blog/cve-2025-30066-tj-actions-supply-chain-attack ↗
- https://www.wiz.io/blog/github-action-tj-actions-changed-files-supply-chain-attack-cve-2025-30066 ↗
- https://www.cisa.gov/news-events/alerts/2025/03/18/supply-chain-compromise-third-party-github-action-cve-2025-30066 ↗
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2025-30066 ↗
MITRE CWE context
CWE classification
The product contains code that appears to be malicious in nature.
View official MITRE CWE details ↗NVD record timing
NVD record timeline
These dates describe NVD’s record, not CISA’s KEV addition or remediation due date.
- NVD published
- Mar 15, 2025, 06:15 AM UTC When NVD first published this CVE record.
- NVD last updated
- Jun 17, 2026, 09:08 AM UTC When NVD last changed its analysis or record data.
Advanced: view the technical CVSS vector
This standardized code is intended for security tools and technical analysts. The plain-language risk summary above explains its main points.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N
CISA notes
This vulnerability affects a common open-source project, third-party library, or a protocol used by different products. For more information, please see: CISA Mitigation Instructions: https://www.cisa.gov/news-events/alerts/2025/03/18/supply-chain-compromise-third-party-tj-actionschanged-files-cve-2025-30066-and-reviewdogaction ; Additional References: https://github.com/tj-actions/changed-files/blob/45fb12d7a8bedb4da42342e52fe054c6c2c3fd73/README.md?plain=1#L20-L28 ; https://nvd.nist.gov/vuln/detail/CVE-2025-30066
- https://www.cisa.gov/news-events/alerts/2025/03/18/supply-chain-compromise-third-party-tj-actionschanged-files-cve-2025-30066-and-reviewdogaction
- https://github.com/tj-actions/changed-files/blob/45fb12d7a8bedb4da42342e52fe054c6c2c3fd73/README.md?plain=1#L20-L28
- https://nvd.nist.gov/vuln/detail/CVE-2025-30066