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Message-ID: <CAK84RTWeQW-+SAFR5V+Y_utGT8U30NaoVxYu+7CfZz18EQ0Vag@mail.gmail.com>
Date: Sat, 15 Mar 2025 12:03:47 -0700
From: Mark Esler <mark.esler@...inguard.dev>
To: oss-security@...ts.openwall.com
Subject: tj-action/changed-files GitHub action was compromised
On March 14 2025 at 16:57:45 UTC the tj-action/changed-files GitHub action was
compromised with commit 0e58ed8 ("chore(deps): lock file maintenance (#2460)").
This commit was added to all 361 tagged versions of the GitHub action. This
malicious commit results in a script that can leak CI/CD secrets from runner
memory.
The compromised action has been removed from GitHub.
We are discovering open source projects which are using the compromised action.
StepSecurity [0] and Semgrep [1] posted early analysis.
Cheers,
Mark
[0] https://www.stepsecurity.io/blog/harden-runner-detection-tj-actions-changed-files-action-is-compromised
[1] https://semgrep.dev/blog/2025/popular-github-action-tj-actionschanged-files-is-compromised/
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