# CVE-2026-109572: Open WebUI privilege escalation in terminal proxy

Source: https://junglewise.ai/threats/cve-2026-109572-open-webui-from-0-8-6-before-0-11-4-contains-a-privilege  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-10-12. Updated: 2026-10-16  
License: CC BY 4.0 with a link back

CVE-2026-109572 · Severity: high · CVSS 7.6 · Published 2026-10-12

Open WebUI is a web interface for managing AI models and terminal connections. A flaw in its terminal proxy allows authenticated users to reach administrator-level terminal management APIs they shouldn't have access to, letting them stop other users' terminals, modify policies, and inject environment variables into other users' sessions. The vulnerability requires an administrator to have configured a Terminals connection and the attacker to have a normal user account with access to it.

## Quick answers

**Is CVE-2026-109572 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-109572 being exploited in the wild.

**How severe is CVE-2026-109572?** High severity, with a CVSS score of 7.6, published 12 October 2026.

**Which products and versions are affected?** Open WebUI 0.8.6 to 0.11.3.

**Is there a fix for CVE-2026-109572?** Yes: fixed in 0.11.4. Until then: Do not configure a Terminals connection in Open WebUI, or ensure your Terminals server is upgraded to version 0.2.4 or later, which rejects administrator requests that carry a user identity and blocks this attack independently. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.

**How is CVE-2026-109572 attacked?** It is attacked over the network.

**Am I affected by CVE-2026-109572?** Check whether you run Open WebUI at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

## How to fix

- Fixed in 0.11.4

Do not configure a Terminals connection in Open WebUI, or ensure your Terminals server is upgraded to version 0.2.4 or later, which rejects administrator requests that carry a user identity and blocks this attack independently.

## Technical details

The terminal proxy at /api/v1/terminals/{server_id}/{path} forwards any user-requested path to the Terminals orchestrator while automatically attaching the administrator shared key for authentication. An authenticated user can craft requests to administrator API paths (policies, status, terminal lifecycle) that the proxy fails to filter, and Terminals treats them as administrator requests because the key is present. The vulnerability requires a Terminals connection configured with bearer authentication and affects all versions from 0.8.6 through 0.11.3; it is fixed in 0.11.4 by restricting the proxy to only forward user terminal paths.

## Affected products

- Open WebUI 0.8.6 to 0.11.3

## Timeline

- 2026-09-28: disclosed
- 2026-10-12: patched: Fix released in version 0.11.4

## References

- [https://github.com/open-webui/open-webui/commit/51bb8cb142f72503e861eeee25ae4dc73c26c36b](https://github.com/open-webui/open-webui/commit/51bb8cb142f72503e861eeee25ae4dc73c26c36b)
- [https://github.com/open-webui/open-webui/security/advisories/GHSA-q46m-r89w-j74p](https://github.com/open-webui/open-webui/security/advisories/GHSA-q46m-r89w-j74p)