---
id: CVE-2026-85690
title: >-
  Plandex 2.2.1 contains a path traversal vulnerability in the ApplyFiles
  function that allows attackers to write files outside the project directory
summary: >-
  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-contr…
severity: high
cvss: 7.8
cvssVector: 'CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H'
cwe:
  - CWE-22
published: '2026-09-04'
updated: '2026-09-23'
sourceUpdated: '2026-09-23T17:17:46.693'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-85690'
references:
  - url: 'https://github.com/plandex-ai/plandex'
    label: disclosure@vulncheck.com
  - url: 'https://github.com/plandex-ai/plandex/blob/cli/v2.2.1/app/cli/lib/apply.go'
    label: disclosure@vulncheck.com
  - url: 'https://github.com/plandex-ai/plandex/issues/352'
    label: disclosure@vulncheck.com
  - url: >-
      https://www.vulncheck.com/advisories/plandex-2.2.1-path-traversal-via-applyfiles
    label: disclosure@vulncheck.com
tags:
  - nvd
epss: 0.00156
epssPercentile: 0.05126
ingestedAt: '2026-09-23T17:28:14.826Z'
---

## Overview

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.

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.