CVE-2026-7810 UsamaK98 python-notebook-mcp server.py add_cell path traversal
Remote attackers can exploit path traversal in the python-notebook-mcp server to read or modify arbitrary files on the host system.
- 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-2026-7810?
CVE-2026-7810 is a medium-severity path traversal vulnerability in UsamaK98 python-notebook-mcp, published on 5 May 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 UsamaK98 python-notebook-mcp up to a05a232815809a7e425b5fa7be26e0d4369894c2. Impacted is the function create_notebook/read_notebook/edit_cell/add_cell of the file server.py. This manipulation causes path traversal. It is possible to initiate the attack remotely. The exploit has been published and may be used. This product is using a rolling release to provide continious delivery. Therefore, no version details for affected nor updated releases are available. 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-2026-7810?
How do I fix CVE-2026-7810?
No fix has been published for CVE-2026-7810 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-2026-7810 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-7810 exists.
Sources
Also known as GHSA-m4mw-6cr3-7cc7.