PT-2026-110703 · Git+1 · Open-Webui

·

CVE-2026-109286

·

Published

2026-10-12

·

Updated

2026-10-12

CVSS v3.1

8.1

High

VectorAV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N
Open WebUI from 0.7.0 before 0.11.4 contains a cross-origin message handling vulnerability in SyncStatsModal that allows any website to steal a signed-in user's session token by posting unvalidated verify:chat messages. Attackers can supply a path-traversal chat id redirecting the authenticated stats export request to the auths endpoint, receiving the victim's JWT for full API access.

Exploit

Fix

Origin Validation Error

Found an issue in the description? Have something to add? Feel free to write us 👾

Weakness Enumeration

Related Identifiers

CVE-2026-109286

Affected Products

Open-Webui