Is CVE-2026-109296 exploited in the wild?

No. Junglewise Threat Intelligence has no report of CVE-2026-109296 being exploited in the wild.

How severe is CVE-2026-109296?

Medium severity, with a CVSS score of 4.3, published 12 October 2026.

Is there a fix for CVE-2026-109296?

Yes: fixed in 0.11.4. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.

How is CVE-2026-109296 attacked?

It is attacked over the network, in a web application.

Am I affected by CVE-2026-109296?

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.

CVE-2026-109296: Open WebUI missing authorization in model provider routes

CVE-2026-109296 · Severity: medium · CVSS 4.3 · Published 2026-10-12

Open WebUI is a web interface for AI model access that manages connections to multiple model providers. Authenticated users can bypass authorization checks to reach disabled model provider backends, causing the server to send requests with stored API keys to providers the user should not access and revealing provider version information and configured connections.

Technologies: Open WebUI. Vendors: Open WebUI.

Quick answers

Is CVE-2026-109296 exploited in the wild?: No. Junglewise Threat Intelligence has no report of CVE-2026-109296 being exploited in the wild.
How severe is CVE-2026-109296?: Medium severity, with a CVSS score of 4.3, published 12 October 2026.
Which products and versions are affected?: Open WebUI before 0.11.4.
Is there a fix for CVE-2026-109296?: Yes: fixed in 0.11.4. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
How is CVE-2026-109296 attacked?: It is attacked over the network, in a web application.
Am I affected by CVE-2026-109296?: 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

Technical details

Missing authorization check in Ollama and OpenAI-compatible model listing routes allows authenticated users to specify a backend provider index (as path segment or query parameter) without validation that the user is permitted to access that connection. The vulnerability affects the listing routes which name no model and therefore cannot use the per-model access control check that was added to inference routes in an earlier fix. On two affected routes, outbound requests carry the provider's configured API key, allowing backends to accept the requests as authorized.

Affected products

Open WebUI Open WebUI before 0.11.4

Timeline

2026-09-27: disclosed: GitHub security advisory GHSA-hm62-64q2-6gxw published
2026-10-12: advisory: CVE-2026-109296 published

References

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