Vulnerability in Tj-Actions Changed-Files
CVE-2025-30066
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.)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 8.6 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N.
EPSS exploit prediction
EPSS: 0.721 (99.4th percentile), scored .
High probability of exploitation in the next 30 days — patch promptly. 99th percentile — 99.4% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.698 · newest: 0.721 · change: +0.023
Affected products
- Tj-Actions Changed-Files — versions 1
Weakness classification (CWE)
CISA KEV (Known Exploited Vulnerabilities)
This CVE is on the CISA KEV catalog, added on . CISA KEV inclusion means CISA has confirmed in-the-wild exploitation; US federal agencies are required to remediate within a published due date.
BOD 22-01 due date: .
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.
Public proof-of-concept exploits
References
- github.com/github/docs/blob/962a1c8dccb8c0f66548b324e5b921b5e4fbc3d6/content/ac… (Product)
- github.com/tj-actions/changed-files/issues/2463 (Issue Tracking)
- www.stepsecurity.io/blog/harden-runner-detection-tj-actions-changed-files-actio… (Exploit, Third Party Advisory, Mitigation)
- semgrep.dev/blog/2025/popular-github-action-tj-actionschanged-files-is-compromi… (Third Party Advisory)
- news.ycombinator.com/item (Third Party Advisory, Issue Tracking)
- web.archive.org/web/20250315060250/https://github.com/tj-actions/changed-files/… (Issue Tracking)
- news.ycombinator.com/item (Third Party Advisory, Issue Tracking)
- github.com/rackerlabs/genestack/pull/903 (Issue Tracking)
- github.com/chains-project/maven-lockfile/pull/1111 (Issue Tracking)
- sysdig.com/blog/detecting-and-mitigating-the-tj-actions-changed-files-supply-ch… (Third Party Advisory, Mitigation)
Frequently asked questions
- What is CVE-2025-30066?
- CVE-2025-30066 is a high-severity vulnerability in Tj-Actions Changed-Files, classified under CWE-506. CVSS score: 8.6/10. Published 2025-03-15.
- How severe is CVE-2025-30066?
- High severity. CVSS v3 base score is 8.6 out of 10.
- Is CVE-2025-30066 known to be exploited?
- Yes. CVE-2025-30066 is listed in the CISA Known Exploited Vulnerabilities catalog (added 2025-03-18), indicating it is being actively exploited. 18 public proof-of-concept repositories are indexed.