CVE-2026-109286 Open WebUI - Cross-Site Request Forgery

Open WebUI >0.7.0 <0.11.4 contains a cross-origin message handling vulnerability caused by unvalidated verify:chat messages in SyncStatsModal, letting remote attackers steal session tokens, exploit requires crafted cross-origin messages.

CVSS base score 8.1 /10
High
CISA KEV
Not listed
Public exploit
None known
Authentication
Not required
EPSS
0.14% chance of exploitation in 30 days
View the NVD record ↗

Details

Type
Cross-Site Request Forgery
Impact
Information Disclosure
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N
Published
12 October 2026
Updated
15 October 2026
Weakness
CWE-346

Vendor fix

Upgrade to version 0.11.4 or later.

Patching closes this CVE. It does not tell you which of your systems run the affected version, or what else is exposed alongside them.

References

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