Runtipi up to 4.6.x BackupManager os command injection

Summaryinfo

A vulnerability classified as critical was found in Runtipi up to 4.6.x. This vulnerability affects unknown code of the component BackupManager. The manipulation results in os command injection. This vulnerability is known as CVE-2026-24129. It is possible to launch the attack remotely. No exploit is available. Upgrading the affected component is advised.

Detailsinfo

A vulnerability was found in Runtipi up to 4.6.x. It has been classified as critical. Affected is an unknown function of the component BackupManager. The manipulation with an unknown input leads to a os command injection vulnerability. CWE is classifying the issue as CWE-78. The product constructs all or part of an OS command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended OS command when it is sent to a downstream component. This is going to have an impact on confidentiality, integrity, and availability. CVE summarizes:

Runtipi is a Docker-based, personal homeserver orchestrator that facilitates multiple services on a single server. Versions 3.7.0 and above allow an authenticated user to execute arbitrary system commands on the host server by injecting shell metacharacters into backup filenames. The BackupManager fails to sanitize the filenames of uploaded backups. The system persists user-uploaded files directly to the host filesystem using the raw originalname provided in the request. This allows an attacker to stage a file containing shell metacharacters (e.g., $(id).tar.gz) at a predictable path, which is later referenced during the restore process. The successful storage of the file is what allows the subsequent restore command to reference and execute it. This issue has been fixed in version 4.7.0.

The advisory is available at github.com. This vulnerability is traded as CVE-2026-24129 since 01/21/2026. The exploitability is told to be difficult. It is possible to launch the attack remotely. The exploitation requires an enhanced level of successful authentication. The technical details are unknown and an exploit is not available. This vulnerability is assigned to T1202 by the MITRE ATT&CK project.

Upgrading to version 4.7.0 eliminates this vulnerability. The upgrade is hosted for download at github.com. Applying the patch c3aa948885554a370d374692158a3bfe1cfdc85a 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.

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Productinfo

Name

• Runtipi

Version

• 4.0
• 4.1
• 4.2
• 4.3
• 4.4
• 4.5
• 4.6

License

• open-source

Website

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

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