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.
Metrics
Affected Vendors & Products
References
History
Thu, 15 Oct 2026 03:30:00 +0000
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ssvc
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Mon, 12 Oct 2026 16:30:00 +0000
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| 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 |
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| Weaknesses | CWE-200 | |
| CPEs | cpe:2.3:a:openwebui:open_webui:*:*:*:*:*:*:*:* | |
| Vendors & Products |
Openwebui
Openwebui open Webui |
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| References |
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| Metrics |
cvssV3_1
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Status: PUBLISHED
Assigner: VulnCheck
Published: 2026-10-12T16:04:52.925Z
Updated: 2026-10-23T21:57:55.255Z
Reserved: 2026-10-12T14:12:52.833Z
Link: CVE-2026-109292
Updated: 2026-10-15T02:39:47.246Z
Status : Awaiting Analysis
Published: 2026-10-12T17:17:22.500
Modified: 2026-10-15T15:55:45.630
Link: CVE-2026-109292
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