tj-actions changed-files GitHub Action

CVE-2025-30066: tj-actions/changed-files GitHub Action Embedded Malicious Code Vulnerability

Is it exploited?

Yes. CISA added it to the Known Exploited Vulnerabilities catalog on 18 Mar 2025, 3 days after the CVE record was published.

How likely is exploitation in the next 30 days?

72.1%

EPSS score, percentile 99.4 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 8 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 up to, not including, 46

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: 8 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.

tj-actions changed-files
Status	Versions
Affected	1 up to, not including, 46

Versions not listed are: unaffected.

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

About this vulnerability

tj-actions/changed-files GitHub Action contains an embedded malicious code vulnerability that allows a remote attacker to discover secrets by reading Github Actions Workflow Logs. These secrets may include, but are not limited to, valid AWS access keys, GitHub personal access tokens (PATs), npm tokens, and private RSA keys.

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

CISA added CVE-2025-30066 to its Known Exploited Vulnerabilities (KEV) catalog on 18 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 8 Apr 2025.
The CVE record was published on 15 Mar 2025, 3 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 72.1% (percentile 99.4), as of 28 Oct 2026.
CISA's SSVC assessment in the CVE record: exploitation active, automatable yes, technical impact partial.

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

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.)

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
15 Mar 2025	CVE record published
18 Mar 2025	Added to CISA KEV
8 Apr 2025	CISA due date for the required action
26 Feb 2026	CVE record last updated

References

7 more in the CVE record.