GHSA-3wp3-xxj9-5jqq: open-webui (CVE-2026-59213)

Package	Ecosystem	Affected	Fixed in
open-webui	PyPI	>=0.6.27, <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 from 0.6.27 up to (but not including) 0.10.0 can serve one user's permission-filtered model list to another user who requests it within the cache TTL (default 1 second), because the per-user cache key in the get_all_models handlers is static. An attacker with a valid account cannot choose the victim or the cached list, but can see models restricted from their own account when the timing aligns. Upgrade to Open WebUI 0.10.0 or later, which fixes the issue.

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
3.5	Low	3.1	CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:L/I:N/A:N	CNA (GitHub_M)

CISA KEV Not listed.
EPSS 0.0037, the 31st percentile, on 5 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.