CVE-2026-12210 universal-tool-calling-protocol python-utcp utcp-gql/utcp-websocket server-side request forgery
Remote attackers can exploit a server-side request forgery flaw in the utcp-gql/utcp-websocket component of the python-utcp library to access internal resources.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2026-12210?
CVE-2026-12210 is a medium-severity server-side request forgery vulnerability in universal-tool-calling-protocol python-utcp, published on 15 Jun 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
A vulnerability was detected in universal-tool-calling-protocol python-utcp 1.1.0. This affects an unknown function of the component utcp-gql/utcp-websocket. Performing a manipulation results in server-side request forgery. The attack can be initiated remotely. The exploit is now public and may be used. The vendor was contacted early about this disclosure but did not respond in any way.
Weakness: CWE-918
Which versions are affected by CVE-2026-12210?
6 open source packages ship an affected version, including utcp-gql and utcp-websocket.
| Package | Affected | Fixed in |
|---|---|---|
utcp-gql PyPI | All versions | 1.1.1 |
utcp-gql PyPI | All versions | 1.1.1 |
utcp-gql PyPI | All versions | 1.1.1 |
utcp-websocket PyPI | All versions | 1.1.1 |
utcp-websocket PyPI | All versions | 1.1.1 |
utcp-websocket PyPI | All versions | 1.1.1 |
How do I fix CVE-2026-12210?
Upgrade utcp-gql to 1.1.1 or later.
Upgrade, and send outbound requests through an allow-list that blocks internal addresses. More about Server-side request forgery.
Is CVE-2026-12210 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-12210 exists.
Sources
Also known as GHSA-ppx3-28rw-8fpf, PYSEC-2026-3931, PYSEC-2026-3932.