High severity · published Oct 12, 2026
CVE-2026-109286
Open WebUI 0.7.0 before 0.11.4 Session Token Theft via SyncStatsModal
8.1
CVSS
0.1%
EPSS
No
On KEV
Description
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.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
Required
Confidentiality
High
Integrity
High
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.1% · higher than 4% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
OP
open-webui · open-webui
0.7.0 before 0.11.4 · source: vendor
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-109286
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-109286
vendor-advisory
https://github.com/open-webui/open-webui/security/advisories/GHSA-vpq8-f445-hcq7
third-party-advisory
https://www.vulncheck.com/advisories/open-webui-0.7.0-before-0.11.4-session-token-theft-via-syncstatsmodal
More from open-webui
9.8
CVE-2026-44566
Open WebUI: Arbitrary File Upload and Path Traversal
9.6
CVE-2026-56400
open-webui - Remote Code Execution via CORS Misconfiguration and Session Validation
9.1
CVE-2026-44551
Open WebUI: LDAP Empty Password Authentication Bypass
9.0
CVE-2026-56398
Open WebUI - Stored Cross-Site Scripting via OAuth Picture Claim SVG Data URI
9.0
CVE-2026-59216
Open WebUI: Cross-user code-interpreter and tool execution via unvalidated Socket.IO event-caller session_id