RCE in Open-Webui
CVE-2026-59216
Open WebUI is an extensible, feature-rich, and user-friendly self-hosted AI platform. Prior to 0.10.0, get_event_call delivered execute:python and execute:tool Socket.IO events to a client-supplied session_id after checking only that the session was connected, allowing authenticated users who learned another socket ID through ydoc:document:join to run code interpreter Python or tools in that user session. This issue is fixed in version 0.10.0.
Vulnerability class: RCE (Remote Code Execution)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.7 (High). Vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:C/C:H/I:H/A:N.
EPSS exploit prediction
EPSS: 0.005 (37.4th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 37th percentile — 37.4% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.003 · newest: 0.005 · change: +0.001
Affected products
- Open-Webui — versions < 0.10.0
- Openwebui Open Webui
Weakness classification (CWE)
References
- github.com/open-webui/open-webui/commit/386ac958144dbbbf0aa6e268070d72b681a318aa (Patch)
- github.com/open-webui/open-webui/pull/25763 (Patch, Issue Tracking)
- github.com/open-webui/open-webui/releases/tag/v0.10.0 (Product, Release Notes)
- github.com/open-webui/open-webui/security/advisories/GHSA-74h3-cxq7-vc5q (Mitigation, Vendor Advisory)
Frequently asked questions
- What is CVE-2026-59216?
- CVE-2026-59216 is a high-severity vulnerability in Open-Webui, classified under Code Injection. CVSS score: 7.7/10. Published 2026-07-09.
- How severe is CVE-2026-59216?
- High severity. CVSS v3 base score is 7.7 out of 10.