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Public proof of conceptFix available

CVE-2023-51664

A public proof of concept exists; no exploitation attested.

  • Published2023-12-27
  • Fixed in41
  • WeaknessCWE-74 · CWE-77

Am I affected?

With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.

Description

tj-actions/changed-files is a Github action to retrieve all files and directories. Prior to 41.0.0, the `tj-actions/changed-files` workflow allows for command injection in changed filenames, allowing an attacker to execute arbitrary code and potentially leak secrets. This issue may lead to arbitrary command execution in the GitHub Runner. This vulnerability has been addressed in version 41.0.0. Users are advised to upgrade.

Timeline

dates in UTC
  1. 2023-12-2717:15CVE publishedNVD

Versions per branch

OSV · NVD
tj-actions/changed-files
BranchAffectedFixed in
41.x< 4141
Tj-actions changed-files
BranchAffectedFixed in
41.0< 41.0.041.0.0

as publishedRanges as NVD and OSV publish them; a distribution’s build can be fixed under an older number.

Products declared by the CNA1 product

As GitHub_M, the CNA that assigned this CVE, declared them in the CVE record; versions as written.

  • tj-actions changed-files
    Affected
    • = < 41.0.0no fix stated

Source: the CNA record (CVE Program), © The MITRE Corporation,CVE Terms of UseCVE recordupdated 2023-12-27

Fix

  1. Update tj-actions/changed-files to 41

Advisories and patches

Detection

Nuclei template
none so far
ProjectDiscovery
Exploit-DB
no entry
Exploit-DB
Proof of concept
Metasploit modules
none listed
Metasploit Framework

Sources

  • CISA-ADPSSVC decisionpoc2024-09-25
  • CNACVSS 3.17.3known since 2026-10-23
  • NVDCVSS 3.19.8read 2026-10-23
  • CNAweakness (CWE)CWE-74, CWE-77known since 2026-10-23
  • NVDweakness (CWE)CWE-77read 2026-10-23
  • FIRST EPSSEPSS score3.4 %2026-11-08
  • OSVaffected packages—
  • GitHub AdvisoriesadvisoryHIGH2024-01-02

Identifiers

Technical details

CVSS v3 Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Published
2023-12-27
Last Modified
2026-06-17
NVD status
Modified
GitHub Advisory
GHSA-mcph-m25j-8j63

Frequently asked questions

What is CVE-2023-51664?

tj-actions/changed-files is a Github action to retrieve all files and directories. Prior to 41.0.0, the `tj-actions/changed-files` workflow allows for command injection in changed filenames, allowing an attacker to execute arbitrary code and potentially leak secrets. This issue may lead to arbitrary command execution in the GitHub Runner. This vulnerability has been addressed in version 41.0.0. Users are advised to upgrade.

Is CVE-2023-51664 actively exploited?

A proof-of-concept exploit exists for CVE-2023-51664, but active exploitation has not been confirmed at this time.

What is the CVSS score for CVE-2023-51664?

CVE-2023-51664 has a CVSS v3 base score of 9.8 (CRITICAL severity), with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

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