MajorCritical vulnerability
CVE-2026-109286 (CVSS 8.6)
NVD · officialPublished Oct 12, 2026Risk 37/100
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.
Technical details
CVSS
8.6
AV:NetworkAC:LowPR:NoneUI:Passive
Evidence and sources
This record is attributed to NVD. Exploitation status and remediation guidance are kept separate from the vulnerability's technical severity.
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