reviewdog/action-setup GitHub Action Embedded Malicious Code Vulnerability
reviewdog action-setup GitHub Action contains an embedded malicious code vulnerability that dumps exposed secrets to Github Actions Workflow Logs.
A remote attacker, without authentication, can achieve full data confidentiality loss. Federal agencies are required to remediate by 2025-04-14 under CISA BOD 22-01.
This is a Software Vulnerability (CWE-506) (CWE-506) vulnerability in reviewdog action-setup GitHub Action. reviewdog/action-setup is a GitHub action that installs reviewdog. reviewdog/action-setup@v1 was compromised March 11, 2025, between 18:42 and 20:31 UTC, with malicious code added that dumps exposed secrets to Github Actions Workflow Logs. Other reviewdog actions that use `reviewdog/action-setup@v1` that would also be compromised, regardless of version or pinning method, are reviewdog/action-shellcheck, reviewdog/action-composite-template, reviewdog/action-staticcheck, reviewdog/action-ast-grep, and reviewdog/action-typos. Exploitation requires remote network access, low attack complexity, no authentication required, and no user interaction required.
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Phishing link
🖼
Malicious file
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Server compromised
Probably yes if any of these apply:
Active exploitation documented in the wild. Threat-research write-up: https://www.wiz.io/blog/new-github-action-supply-chain-attack-reviewdog-action-setup
Manual remediation steps
Apply the Vendor Patch
This vulnerability is in the CISA Known Exploited Vulnerabilities catalog — apply the vendor's security update as soon as possible.
CISA 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.
References
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References