Description
tj-actions changed-files before 46 allows remote attackers to discover secrets by reading actions logs. (The tags v1 through v45.0.7 were affected on 2025-03-14 and 2025-03-15 because they were modified by a threat actor to point at commit 0e58ed8, which contained malicious updateFeatures code.)
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| tj-actions | changed-files | 1 – < 46 | 46 |
Public exploits
Exploit or proof-of-concept code for this vulnerability is publicly available, which lowers the bar for attackers. Treat it as a reason to patch sooner.
Third-party code, not reviewed by us. Public PoCs are sometimes fake or contain malware. Read the code first and run it only in an isolated lab, against systems you are authorised to test.
GitHub 2 repositories
-
Checkmarx/Checkmarx-CVE-2025-30066-Detection-Tool ★ 1 · Mar 18, 2025
-
Super-Vulnerable-Org/compromised-action ★ 0 · May 14, 2026
Test repo: simulates CVE-2025-30066 style compromised GitHub Action (for security research/testing chainradar)
Sources: PoC-in-GitHub, Metasploit Framework, Exploit-DB — updated daily. Only links are listed; no exploit code is hosted here.
Affected packages
| Ecosystem | Package | Affected | Fixed | Record |
|---|---|---|---|---|
| GitHub Actions | tj-actions/changed-files | < 46.0.1 | 46.0.1 | GHSA-mrrh-fwg8-r2c3 |
References
- 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/tj-actions/changed-files/issues/2463
- https://www.stepsecurity.io/blog/harden-runner-detection-tj-actions-changed-files-action-is-compromised
- https://semgrep.dev/blog/2025/popular-github-action-tj-actionschanged-files-is-compromised/
- https://news.ycombinator.com/item?id=43368870
- https://web.archive.org/web/20250315060250/https://github.com/tj-actions/changed-files/issues/2463
- https://news.ycombinator.com/item?id=43367987
- https://github.com/rackerlabs/genestack/pull/903
- https://github.com/chains-project/maven-lockfile/pull/1111
- https://sysdig.com/blog/detecting-and-mitigating-the-tj-actions-changed-files-supply-chain-attack-cve-2025-30066/
- https://github.com/espressif/arduino-esp32/issues/11127
- https://github.com/modal-labs/modal-examples/issues/1100
- https://github.com/tj-actions/changed-files/issues/2464
- https://github.com/tj-actions/changed-files/blob/45fb12d7a8bedb4da42342e52fe054c6c2c3fd73/README.md?plain=1#L20-L28
- https://www.wiz.io/blog/github-action-tj-actions-changed-files-supply-chain-attack-cve-2025-30066
- 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://github.com/tj-actions/changed-files/issues/2477
- https://blog.gitguardian.com/compromised-tj-actions/