docker compose up to 2.40.1 com.docker.compose.extends path traversal

Summaryinfo

A vulnerability labeled as critical has been found in docker compose up to 2.40.1. Affected is an unknown function of the component com.docker.compose.extends/com.docker.compose.envfile. The manipulation results in path traversal. This vulnerability is identified as CVE-2025-62725. The attack can be executed remotely. There is not any exploit available. The affected component should be upgraded.

Detailsinfo

A vulnerability, which was classified as critical, was found in docker compose up to 2.40.1. Affected is an unknown part of the component com.docker.compose.extends/com.docker.compose.envfile. The manipulation with an unknown input leads to a path traversal vulnerability. CWE is classifying the issue as CWE-22. The product uses external input to construct a pathname that is intended to identify a file or directory that is located underneath a restricted parent directory, but the product does not properly neutralize special elements within the pathname that can cause the pathname to resolve to a location that is outside of the restricted directory. This is going to have an impact on confidentiality, integrity, and availability. CVE summarizes:

Docker Compose trusts the path information embedded in remote OCI compose artifacts. When a layer includes the annotations com.docker.compose.extends or com.docker.compose.envfile, Compose joins the attacker‑supplied value from com.docker.compose.file/com.docker.compose.envfile with its local cache directory and writes the file there. This affects any platform or workflow that resolves remote OCI compose artifacts, Docker Desktop, standalone Compose binaries on Linux, CI/CD runners, cloud dev environments is affected. An attacker can escape the cache directory and overwrite arbitrary files on the machine running docker compose, even if the user only runs read‑only commands such as docker compose config or docker compose ps. This issue is fixed in v2.40.2.

The advisory is available at github.com. This vulnerability is traded as CVE-2025-62725 since 10/20/2025. The exploitability is told to be easy. It is possible to launch the attack remotely. The exploitation doesn't require any form of authentication. Successful exploitation requires user interaction by the victim. The technical details are unknown and an exploit is not available. This vulnerability is assigned to T1006 by the MITRE ATT&CK project.

The vulnerability scanner Nessus provides a plugin with the ID 271858 (Linux Distros Unpatched Vulnerability : CVE-2025-62725), which helps to determine the existence of the flaw in a target environment.

Upgrading to version 2.40.2 eliminates this vulnerability. Applying the patch 69bcb962bfb2ea53b41aa925333d356b577d6176 is able to eliminate this problem. The bugfix is ready for download at github.com. The best possible mitigation is suggested to be upgrading to the latest version.

The vulnerability is also documented in the databases at Tenable (271858) and EUVD (EUVD-2025-36357). If you want to get best quality of vulnerability data, you may have to visit VulDB.

Productinfo

Type

• Virtualization Software

Vendor

• docker

Name

• compose

Version

• 2.40.0
• 2.40.1

License

• open-source

Website

• Product: https://github.com/docker/compose/

CPE 2.3info

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CPE 2.2info

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If you want to get best quality of vulnerability data, you may have to visit VulDB.

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