High severity8.1GHSA Advisory· Published May 15, 2026· Updated May 19, 2026
CVE-2026-44553
CVE-2026-44553
Description
Open WebUI is a self-hosted artificial intelligence platform designed to operate entirely offline. Prior to 0.9.0, administrative role changes and user deletions do not iterate SESSION_POOL to disconnect affected sessions. As a result, a user whose admin role has been revoked retains admin privileges within their existing Socket.IO session for as long as they keep the connection alive (via automatic heartbeats). The gap is exclusive to the Socket.IO session cache. 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
2<= 0.8.12+ 1 more
- (no CPE)range: <= 0.8.12
- cpe:2.3:a:openwebui:open_webui:*:*:*:*:*:*:*:*range: <0.9.0
Patches
Vulnerability mechanics
References
3- github.com/open-webui/open-webui/security/advisories/GHSA-45m8-cpm2-3v65nvdExploitVendor AdvisoryWEB
- github.com/advisories/GHSA-45m8-cpm2-3v65ghsaADVISORY
- nvd.nist.gov/vuln/detail/CVE-2026-44553ghsaADVISORY
News mentions
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