reviewdog action-setup GitHub Action

CVE-2025-30154: reviewdog/action-setup GitHub Action Embedded Malicious Code Vulnerability

Is it exploited?

Yes. CISA added it to the Known Exploited Vulnerabilities catalog on 24 Mar 2025, 5 days after the CVE record was published.

How likely is exploitation in the next 30 days?

2.5%

EPSS score, percentile 84.5 of all scored records

How severe?

8.6 High

CVSS v3.1 base score, given by the CNA

What should I do?

Required action (CISA), due 14 Apr 2025: 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.

The CVE record links no vendor advisory, patch or mitigation.

Which versions are affected?

Affected: = 1

Versions by product

Source: CISA Known Exploited Vulnerabilities (KEV) catalog, 2026.10.28, as of 28 Oct 2026; FIRST Exploit Prediction Scoring System (EPSS), v2026.06.15, as of 28 Oct 2026; CVE List V5 (CVE Program), cve_2026-10-28_0000Z, as of 28 Oct 2026. About the data.

What to do

Required action, set by CISA

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.

CISA due date for this action: 14 April 2025.

Advisories and patches

The CVE record links no vendor advisory, patch or mitigation.

Linked from CISA's catalog entry

Affected products and versions

As listed in the CVE record.

reviewdog reviewdog
Status	Versions
Affected	= 1

Source: CVE List V5 (CVE Program), cve_2026-10-28_0000Z, as of 28 Oct 2026. About the data.

About this vulnerability

reviewdog action-setup GitHub Action contains an embedded malicious code vulnerability that dumps exposed secrets to Github Actions Workflow Logs.

Summary: CISA's KEV catalog, as of 28 Oct 2026.

CISA added CVE-2025-30154 to its Known Exploited Vulnerabilities (KEV) catalog on 24 Mar 2025.
CISA's ransomware flag for this entry is "Unknown": no evidence of ransomware use in the catalog, which is not proof of none.
The due date CISA sets for the required action is 14 Apr 2025.
The CVE record was published on 19 Mar 2025, 5 days before it was added to KEV.
The CVE record carries a CVSS v3.1 base score of 8.6 (High), given by its CNA.
FIRST's EPSS model puts the probability of exploitation in the next 30 days at 2.5% (percentile 84.5), as of 28 Oct 2026.
CISA's SSVC assessment in the CVE record: exploitation active, automatable yes, technical impact total.

Source: CISA Known Exploited Vulnerabilities (KEV) catalog, 2026.10.28, as of 28 Oct 2026; CVE List V5 (CVE Program), cve_2026-10-28_0000Z, as of 28 Oct 2026; FIRST Exploit Prediction Scoring System (EPSS), v2026.06.15, as of 28 Oct 2026. About the data.

Description

Multiple Reviewdog actions were compromised during a specific time period

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.

Source: CVE List V5 (CVE Program), cve_2026-10-28_0000Z, as of 28 Oct 2026. About the data.

Weakness

CWE-506: Embedded Malicious Code

CWE and CAPEC are maintained by MITRE; the entries are those named in the CVE record and the KEV entry.

Timeline

Date	Event
19 Mar 2025	CVE record published
24 Mar 2025	Added to CISA KEV
14 Apr 2025	CISA due date for the required action
26 Feb 2026	CVE record last updated