CVE-2026-109286

CVSS 8.6 (high) · published 2026-10-12

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.

Weakness: CWE-346

Source: NVD CVE-2026-109286

References

• https://github.com/open-webui/open-webui/security/advisories/GHSA-vpq8-f445-hcq7
• https://www.vulncheck.com/advisories/open-webui-0.7.0-before-0.11.4-session-token-theft-via-syncstatsmodal
• https://github.com/open-webui/open-webui/security/advisories/GHSA-vpq8-f445-hcq7

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