PatchTheCVECVE-2026-45365: Open WebUI is a self-hosted artificial intelligence platform designed to operate entirely offline
CVE-2026-45365 is a medium-severity flaw (CVSS 5.4) affecting open webui. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.
Open WebUI is a self-hosted artificial intelligence platform designed to operate entirely offline. Prior to 0.8.11, an internal-only bypass_filter parameter is exposed on the /openai/chat/completions and /ollama/api/chat HTTP endpoints via FastAPI query string binding, allowing any authenticated user to append ?bypass_filter=true and bypass model access control checks to invoke admin-restricted models. This vulnerability is fixed in 0.8.11.
Why this priority
- Public exploit reference
A fixed release or distro patch exists.
Risk facts
| CVSS score | 5.4 (Medium) |
| Attack vector | Network (remote) |
| Attack complexity | Low |
| Privileges needed | Low |
| User interaction | None |
| EPSS exploit chance | 0.2% (top 91%) |
| CISA exploited list | No |
| Weakness | CWE-285 |
| Published | 2026-05-15 |
| Last modified | 2026-06-17 |
Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score
Am I affected?
Timeline
- Published CVE record published
- Updated Record last modified
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.
Quick answers
How do I fix CVE-2026-45365?
open webui: upgrade to 0.8.11. Exact commands for each OS are on this page.
Is CVE-2026-45365 being exploited?
CVE-2026-45365 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.
What does CVE-2026-45365 affect?
CVE-2026-45365 affects open webui. Severity is medium (CVSS 5.4). Open WebUI is a self-hosted artificial intelligence platform designed to operate entirely offline. Prior to 0.8.11, an internal-only bypass_filter parameter is exposed on the /openai/chat/completions and /ollama/api/chat HTTP endpoints via
How urgent is CVE-2026-45365?
Priority 26/100. Public exploit reference
Software pages
OpenAI and LLM tools vulnerabilities · FastAPI vulnerabilities
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