CVE-2026-81837 RooCodeInc Roo-Code ApplyPatchTool ApplyPatchTool.ts path.resolve path traversal
Remote attackers can exploit path traversal in Roo Code's ApplyPatchTool to read or modify arbitrary files, affecting an unsupported project.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2026-81837?
CVE-2026-81837 is a medium-severity path traversal vulnerability in RooCodeInc Roo-Code, published on 27 Aug 2026. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Official description
A flaw has been found in RooCodeInc Roo-Code up to 3.51.1. This issue affects the function path.resolve of the file src/core/tools/ApplyPatchTool.ts of the component ApplyPatchTool. This manipulation causes path traversal. It is possible to initiate the attack remotely. The exploit has been published and may be used. Multiple isses were reported to the vendor beforehand. They explain, that "they all apply to Roo Code, a project we no longer support - the repository was archived a while ago, and we don't encourage anyone to use it." This vulnerability only affects products that are no longer supported by the maintainer.
Weakness: CWE-22
Which versions are affected by CVE-2026-81837?
How do I fix CVE-2026-81837?
No fix has been published for CVE-2026-81837 yet. Limit exposure of the affected software until one is available.
Upgrade, and resolve every user-supplied path against an allowed base folder before opening it. More about Path traversal.
Is CVE-2026-81837 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-81837 exists.
Sources
Also known as GHSA-pjx2-9jx7-x89r.