Open WebUI from 0.6.27 before 0.11.4 contains an information disclosure vulnerability that allows destination servers to obtain user session cookies by receiving the full browser cookie jar on OAuth-mode connections. Operators of OpenAI-compatible connections, OpenAPI tool servers or terminal servers can capture forwarded session cookies from routine requests and replay them to hijack accounts, including administrators.
Advisories
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Fixes
Solution
No solution given by the vendor.
Workaround
No workaround given by the vendor.
References
History
Mon, 12 Oct 2026 16:30:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Description | Open WebUI from 0.6.27 before 0.11.4 contains an information disclosure vulnerability that allows destination servers to obtain user session cookies by receiving the full browser cookie jar on OAuth-mode connections. Operators of OpenAI-compatible connections, OpenAPI tool servers or terminal servers can capture forwarded session cookies from routine requests and replay them to hijack accounts, including administrators. | |
| Title | Open WebUI 0.6.27 before 0.11.4 Session Token Disclosure via OAuth-Mode Connections | |
| First Time appeared |
Openwebui
Openwebui open Webui |
|
| Weaknesses | CWE-200 | |
| CPEs | cpe:2.3:a:openwebui:open_webui:*:*:*:*:*:*:*:* | |
| Vendors & Products |
Openwebui
Openwebui open Webui |
|
| References |
|
|
| Metrics |
cvssV3_1
|
Projects
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Status: PUBLISHED
Assigner: VulnCheck
Published:
Updated: 2026-10-12T16:04:52.925Z
Reserved: 2026-10-12T14:12:52.833Z
Link: CVE-2026-109292
No data.
Status : Received
Published: 2026-10-12T17:17:22.500
Modified: 2026-10-12T17:17:22.500
Link: CVE-2026-109292
No data.
OpenCVE Enrichment
No data.
Weaknesses