CVE-2025-30066
What it is
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.)
At a glance
- Exploitability
- Can be exploited over the network without logging in. High risk of data exposure.
- In the wild
- CISA lists this as exploited in real attacks. Treat as urgent.
- Fix
- A patch, advisory or fixed version is referenced. Upgrade or apply it.
Timeline
- ReservedThe CVE id was reserved by its CNA
- PublishedDisclosed publicly on CVE.org and NVD
- 2025-03-18 Exploited in the wildAdded to CISA's Known Exploited Vulnerabilities list
- 2025-04-08 Remediation deadlineCISA's due date for federal agencies to fix it
- Last updatedMost recent change to the record
Why it ranks here
- Exploited in the wild: yes, CISA lists it. This puts it above everything that is not.
- Exploit odds: 72.1% in the next 30 days (EPSS).
- Severity: 8.6 HIGH (CVSS).
- Fix: a patch or advisory is linked.
Details
- Published
- Last modified
- Added to CISA KEV
- 2025-03-18
- Exploit probability
- 72.1% · EPSS, next 30 days
- Weakness
- CWE-506
- Record status
- Analyzed
Affected
- tj-actions changed-files ≤ 45.0.7
Attack profile CVSS 3.1 · 8.6
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- None
- User interaction
- None
- Scope
- Changed
- Confidentiality
- High
- Integrity
- None
- Availability
- None
Raw vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N
Is it in your code?
Hand this to your coding agent. It searches your project for the affected products and checks versions. Nothing leaves your machine.
Read https://cve-list.com/agent/cve/CVE-2025-30066.md and follow it. Check whether this project is affected by CVE-2025-30066. Read only. Don't change anything and don't upload my code. Tell me yes, no or not sure, with the file as proof.
Fix and advisories
- https://github.com/chains-project/maven-lockfile/pull/1111
- https://github.com/rackerlabs/genestack/pull/903
- 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
References
- 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://sysdig.com/blog/detecting-and-mitigating-the-tj-actions-changed-files-supply-chain-attack-cve-2025-30066/
- https://web.archive.org/web/20250315060250/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://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