Vulnerability · Published Oct 12, 2026 · Assigned by VulnCheck

CVE-2026-109286Open WebUI 0.7.0 before 0.11.4 Session Token Theft via SyncStatsModal

High 8.1

In plain English

A high-severity security flaw in open-webui from open-webui. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.1% (higher than 4% of all known vulnerabilities).

Severity (CVSS 3.1)8.1High

Exploit odds (30 days)0.1%top 96.2% of all CVEs

Exploited in the wildNo reportsCISA SSVC: none

Attack toolingNoneno public tooling known

Official 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.

Affected products (as reported)

Vendor	Product	Versions
open-webui	open-webui	0.7.0 – before 0.11.4

Weakness: CWE-346 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N

References

GitHub Security Advisory (GHSA-vpq8-f445-hcq7) vendor-advisory
VulnCheck Advisory: Open WebUI 0.7.0 before 0.11.4 Session Token Theft via SyncStatsModal third-party-advisory