Zero-day vulnerability in reviewdog

Embedded malicious code (backdoor)
CVE-2025-30154

Vulnerability details

Advisory: SB2025032501 - Backdoor in reviewdog

Vulnerable component: reviewdog

CVE-ID: CVE-2025-30154

CVSSv3 score: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N/E:H/RL:O/RC:C

CWE-ID: CWE-506 - Embedded Malicious Code

Description:

The vulnerability allows a remote attacker to gain unauthorized access to the application.

The reviewdog/action-setup@v1 repository was compromised on March 11, 2025, between 18:42 and 20:31 UTC, with malicious code added to it. Purpose of the malicious code was to dumps exposed secrets to Github Actions Workflow Logs.

Other reviewdog actions that use reviewdog/action-setup@v1 would also be compromised, regardless of version or pinning method:

  • reviewdog/action-shellcheck
  • reviewdog/action-composite-template
  • reviewdog/action-staticcheck
  • reviewdog/action-ast-grep
  • reviewdog/action-typos


External links:

https://github.com/reviewdog/reviewdog/security/advisories/GHSA-qmg3-hpqr-gqvc

https://github.com/reviewdog/reviewdog/issues/2079

https://www.wiz.io/blog/new-github-action-supply-chain-attack-reviewdog-action-setup


About zero-day vulnerabilities

Zero-day vulnerability is an undisclosed vulnerability in software that hackers can exploit to compromise computer programs, gain unauthorized access to sensitive data, penetrate networks, etc. We consider vulnerability a zero-day when there is no solution provided from software vendor and the vulnerability is being actively exploited by malicious actors.

Zero-day candidate is a potential zero-day vulnerability in software which might have been used in targeted attacks, however there is no evidence to support this suggestion.