Runtipi up to 4.7.1 URN Parser UserConfigController path traversal

Summaryinfo

A vulnerability classified as critical has been found in Runtipi up to 4.7.1. Affected is the function UserConfigController of the component URN Parser. Performing a manipulation results in path traversal. This vulnerability is cataloged as CVE-2026-25116. It is possible to initiate the attack remotely. There is no exploit available. It is recommended to upgrade the affected component.

Detailsinfo

A vulnerability was found in Runtipi up to 4.7.1. It has been classified as critical. This affects the function UserConfigController of the component URN Parser. 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. The summary by CVE is:

Runtipi is a personal homeserver orchestrator. Starting in version 4.5.0 and prior to version 4.7.2, an unauthenticated Path Traversal vulnerability in the `UserConfigController` allows any remote user to overwrite the system's `docker-compose.yml` configuration file. By exploiting insecure URN parsing, an attacker can replace the primary stack configuration with a malicious one, resulting in full Remote Code Execution (RCE) and host filesystem compromise the next time the instance is restarted by the operator. Version 4.7.2 fixes the vulnerability.

It is possible to read the advisory at github.com. This vulnerability is uniquely identified as CVE-2026-25116 since 01/29/2026. The exploitability is told to be easy. It is possible to initiate the attack remotely. No form of authentication is needed for exploitation. It demands that the victim is doing some kind of user interaction. Technical details of the vulnerability are known, but there is no available exploit. The attack technique deployed by this issue is T1006 according to MITRE ATT&CK.

Upgrading to version 4.7.2 eliminates this vulnerability. The upgrade is hosted for download at github.com.

The vulnerability is also documented in the vulnerability database at EUVD (EUVD-2026-4942). Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

Name

• Runtipi

Version

• 4.7.0
• 4.7.1

Website

• Product: https://github.com/runtipi/runtipi/

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Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

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