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Open WebUI: Private channel messages can be disclosed through cross-channel thread parent_id binding

🗓️ 04 Aug 2026 11:34:43Reported by Python Packaging AdvisoryType 
pypa
 pypa
🔗 github.com👁 7 Views

An authenticated user can read a private channel message by using its id as a thread parent, bypassing binding.

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04 Aug 2026 13:36Current
5.5Medium risk
Vulners AI Score5.5
CVSS 3.13.1
EPSS0.00255
SSVC
7