CVE-2025-30066

Known Exploited Public Exploit

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.)

Category

8.6
CVSS
Severity: High
CVSS 3.1 •
EPSS 59.50% Top 5%
KEV Since 
Third-Party Advisory gitguardian.com Third-Party Advisory ycombinator.com Third-Party Advisory ycombinator.com Third-Party Advisory semgrep.dev Third-Party Advisory sysdig.com Third-Party Advisory stepsecurity.io Third-Party Advisory stream.security Third-Party Advisory sweet.security Third-Party Advisory wiz.io Third-Party Advisory cisa.gov
Affected: tj-actions changed-files
Published at:
Updated at:

References

Link Tags
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 product
https://github.com/tj-actions/changed-files/issues/2463 issue tracking
https://www.stepsecurity.io/blog/harden-runner-detection-tj-actions-changed-files-action-is-compromised mitigation third party advisory exploit
https://semgrep.dev/blog/2025/popular-github-action-tj-actionschanged-files-is-compromised/ third party advisory
https://news.ycombinator.com/item?id=43368870 third party advisory issue tracking
https://web.archive.org/web/20250315060250/https://github.com/tj-actions/changed-files/issues/2463 issue tracking
https://news.ycombinator.com/item?id=43367987 third party advisory issue tracking
https://github.com/rackerlabs/genestack/pull/903 issue tracking
https://github.com/chains-project/maven-lockfile/pull/1111 issue tracking
https://sysdig.com/blog/detecting-and-mitigating-the-tj-actions-changed-files-supply-chain-attack-cve-2025-30066/ mitigation third party advisory
https://github.com/espressif/arduino-esp32/issues/11127 issue tracking
https://github.com/modal-labs/modal-examples/issues/1100 issue tracking
https://github.com/tj-actions/changed-files/issues/2464 issue tracking
https://github.com/tj-actions/changed-files/blob/45fb12d7a8bedb4da42342e52fe054c6c2c3fd73/README.md?plain=1#L20-L28 product
https://www.wiz.io/blog/github-action-tj-actions-changed-files-supply-chain-attack-cve-2025-30066 third party advisory
https://www.stream.security/post/github-action-supply-chain-attack-exposes-secrets-what-you-need-to-know-and-how-to-respond third party advisory
https://www.sweet.security/blog/cve-2025-30066-tj-actions-supply-chain-attack third party advisory
https://github.com/tj-actions/changed-files/issues/2477 issue tracking
https://blog.gitguardian.com/compromised-tj-actions/ third party advisory exploit
https://www.cisa.gov/news-events/alerts/2025/03/18/supply-chain-compromise-third-party-github-action-cve-2025-30066 third party advisory us government resource

Frequently Asked Questions

What is the severity of CVE-2025-30066?
CVE-2025-30066 has been scored as a high severity vulnerability.
How to fix CVE-2025-30066?
To fix CVE-2025-30066, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2025-30066 being actively exploited in the wild?
It is confirmed that CVE-2025-30066 is actively exploited. Be extra cautious if you are using vulnerable components. According to its EPSS score, there is a ~59% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2025-30066?
CVE-2025-30066 affects tj-actions changed-files.
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