Vulnerability Description
Open WebUI is a self-hosted artificial intelligence platform designed to operate entirely offline. Prior to 0.9.3, the POST /api/v1/notes/{id}/pin endpoint performs a write operation (toggling the is_pinned field) but only checks for read permission. Users with read-only access to a shared note can pin/unpin it, which is a state-modifying action that should require write permission. This vulnerability is fixed in 0.9.3.
CVSS Score
LOW
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Openwebui | Open Webui | < 0.9.3 |
Related Weaknesses (CWE)
References
- https://github.com/open-webui/open-webui/security/advisories/GHSA-jx2x-j75f-xq3jExploitMitigationVendor Advisory
- https://github.com/open-webui/open-webui/security/advisories/GHSA-jx2x-j75f-xq3jExploitMitigationVendor Advisory
FAQ
What is CVE-2026-45316?
CVE-2026-45316 is a vulnerability with a CVSS score of 3.5 (LOW). Open WebUI is a self-hosted artificial intelligence platform designed to operate entirely offline. Prior to 0.9.3, the POST /api/v1/notes/{id}/pin endpoint performs a write operation (toggling the is_...
How severe is CVE-2026-45316?
CVE-2026-45316 has been rated LOW with a CVSS base score of 3.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-45316?
Check the references section above for vendor advisories and patch information. Affected products include: Openwebui Open Webui.