High severity7.1GHSA Advisory· Published May 15, 2026· Updated May 19, 2026
CVE-2026-45349
CVE-2026-45349
Description
Open WebUI is a self-hosted artificial intelligence platform designed to operate entirely offline. Prior to 0.9.0, a user just needs to use the API endpoint: /api/chat/completions with their own API key (generated in OWUI) and the Chat ID of another user to continue the conversation of the other user. This vulnerability is fixed in 0.9.0.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected packages
Versions sourced from the GitHub Security Advisory.
| Package | Affected versions | Patched versions |
|---|---|---|
open-webuiPyPI | < 0.9.0 | 0.9.0 |
Affected products
1- Range: <= 0.8.12
Patches
Vulnerability mechanics
References
5- github.com/open-webui/open-webui/security/advisories/GHSA-gfm2-xm6c-37qcnvdExploitMitigationVendor AdvisoryWEB
- github.com/advisories/GHSA-gfm2-xm6c-37qcghsaADVISORY
- nvd.nist.gov/vuln/detail/CVE-2026-45349ghsaADVISORY
- github.com/open-webui/open-webui/commit/cf4218e688def6f11d195aeda6665ae5b5376b67ghsaWEB
- github.com/open-webui/open-webui/releases/tag/v0.9.0ghsaWEB
News mentions
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