CVE-2026-81491 boxpositron with-context-mcp index.ts project_folder path traversal
Remote attackers can exploit path traversal in with-context-mcp to read or modify files outside the intended directory.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-81491?
CVE-2026-81491 is a medium-severity path traversal vulnerability in boxpositron with-context-mcp, published on 27 Aug 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
A flaw has been found in boxpositron with-context-mcp up to 3.0.7. This affects the function ingest_notes/teleport_notes/sync_notes/project_folder of the file src/index.ts. Executing a manipulation can lead to path traversal. It is possible to launch the attack remotely. The exploit has been published and may be used. The project was informed of the problem early through an issue report but has not responded yet.
Weakness: CWE-22
Which versions are affected by CVE-2026-81491?
How do I fix CVE-2026-81491?
No fix has been published for CVE-2026-81491 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-2026-81491 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-81491 exists.
Sources
Also known as GHSA-cfj4-56c7-w9x6.