Plandex up to 2.2.1 ApplyFiles path traversal

Summaryinfo

A vulnerability classified as problematic was found in Plandex up to 2.2.1. This affects the function ApplyFiles. Such manipulation leads to path traversal. This vulnerability is documented as CVE-2026-85690. The attack needs to be performed locally. There is not any exploit available.

Detailsinfo

A vulnerability, which was classified as problematic, has been found in Plandex up to 2.2.1. Affected by this issue is the function ApplyFiles. The manipulation with an unknown input leads to a path traversal vulnerability. Using CWE to declare the problem leads to 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. Impacted is confidentiality, integrity, and availability. CVE summarizes:

Plandex 2.2.1 contains a path traversal vulnerability in the ApplyFiles function that allows attackers to write files outside the project directory. Attackers can influence model output through poisoned repository files or attacker-controlled context to write to arbitrary locations like shell rc or cron files, achieving code execution.

The advisory is available at github.com. This vulnerability is handled as CVE-2026-85690 since 09/04/2026. The exploitation is known to be easy. Local access is required to approach this attack. Successful exploitation requires user interaction by the victim. Technical details are known, but there is no available exploit. This vulnerability is assigned to T1006 by the MITRE ATT&CK project.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

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Productinfo

Name

• Plandex

Version

• 2.2.0
• 2.2.1

CPE 2.3info

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CPE 2.2info

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