GHSA-74h3-cxq7-vc5q: open-webui (CVE-2026-59216)

Package	Ecosystem	Affected	Fixed in
open-webui	PyPI	<0.10.0	0.10.0

Machine-written summary

Summary written by Claude Haiku from the source advisory. Not reviewed by a person.

Open WebUI versions before 0.10.0 are vulnerable to cross-user code execution through the Socket.IO event caller. An authenticated low-privilege user who can obtain another user's live session ID, such as one shared via a collaborative note, can run Python code interpreter and tool execution in that user's session. If the victim is an administrator, this can lead to server-side remote code execution. Upgrade to Open WebUI 0.10.0 or later, which checks that the target session belongs to the requesting user.

Written 5 Nov 2026.

Not analysed yet

We haven’t published our analysis of this Advisory yet. Once a person has reviewed it, this page will say what’s vulnerable, what has to be true for your app to be affected, and how to check.

Severity and exploitation

Score	Rating	CVSS	Vector	Source
7.7	High	3.1	CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:C/C:H/I:H/A:N	CNA (GitHub_M)

CISA KEV Not listed.
EPSS 0.0045, the 39th percentile, on 13 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.

Timeline

31 Oct 2026, 14:41 UTC First seen by agentprime
31 Oct 2026, 14:41 UTC Confirmed by OSV

Sources

Facts on this page come from the GitHub Advisory Database (CC-BY 4.0), OSV and the other sources listed, as published. We don’t reproduce full advisory descriptions, which can contain exploit code.