Vulnerability · Published Sep 4, 2026 · Assigned by VulnCheck
CVE-2026-85690Plandex 2.2.1 Path Traversal via ApplyFiles
High 7.8
In plain English
A high-severity path traversal in plandex from plandex-ai. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.2% (higher than 10% of all known vulnerabilities).
Severity (CVSS 3.1)7.8High
Exploit odds (30 days)0.2%top 89.7% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official description
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.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| plandex-ai | plandex | 0 – through 2.2.1 |
Weakness: CWE-22 · Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
References
- GitHub Issue #352 issue-tracking
- https://github.com/plandex-ai/plandex product
- https://github.com/plandex-ai/plandex/blob/cli/v2.2.1/app/cli/lib/apply.go technical-description
- VulnCheck Advisory: Plandex 2.2.1 Path Traversal via ApplyFiles third-party-advisory