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Advisories

Open WebUI 0.6.27 before 0.11.4 Session Token Disclosure via OAuth-Mode Connections

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severity
high
date
Affecting

  • open-webui >= 0.6.27, < 0.11.4

CWE
  • CWE-200 Exposure of Sensitive Information to an Unauthorized Actor
CVSS
7.6
CVSS V4 Vector
CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:P/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N
Credit
gigioneggiando, brodmart, Classic298
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.

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