CVE Watch10 sept 2026

CVE-2026-87994

Open WebUI is an extensible, feature-rich, and user-friendly self-hosted AI platform. From 0.9.5 until 0.11.1, the channel branch of chat_co

CVSS

4.3

Medio

EPSS

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KEV

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Exploit Today

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0-100

Publicado: 9 sept 2026 · Última mod.: 10 sept 2026 · CWE-639 · CWE-862

EPSS · 30d

Sin historial EPSS suficiente todavía.

Descripción técnica

Open WebUI is an extensible, feature-rich, and user-friendly self-hosted AI platform. From 0.9.5 until 0.11.1, the channel branch of chat_completion in backend/open_webui/main.py checked channel write access and channel membership for a supplied message_id but did not verify that the calling user authored the targeted message. A channel member could use the chat completions endpoint to replace another member's message while preserving the victim as the stored author, altering the conversation record without gaining access to other channels. This issue is fixed in version 0.11.1.

Referencias oficiales

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