Log in Start free

Vulnerability · Published Jul 9, 2026 · Assigned by GitHub_M

CVE-2026-59216Open WebUI: Cross-user code-interpreter and tool execution via unvalidated Socket.IO event-caller session_id

High 7.7

In plain English

A high-severity code injection in open-webui from open-webui. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.5% (higher than 40% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS 3.1)7.7High
Exploit odds (30 days)0.5%top 60.4% of all CVEs
Exploited in the wildNo reportsCISA SSVC: poc
Attack toolingNoneno public tooling known

Official description

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.

Affected packages & fixed versions

EcosystemPackageFixed inAdvisory
PyPIopen-webui0.10.0GHSA-74h3-cxq7-vc5q
PyPIopen-webui0.10.0PYSEC-2026-3592

Affected products (as reported)

VendorProductVersions
open-webui open-webui < 0.10.0

Weakness: CWE-94, CWE-200, CWE-639, CWE-862 · Vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:C/C:H/I:H/A:N

References