Vulnerability detail

Vendor

tj-actions

Product

changed-files

Published

Mar 15, 2025

EPSS

—

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.)

SSVC decision points

Exploitation

active

Automatable

Yes

Technical impact

partial

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/

Potential proof of concepts