Missing Authorization Affecting open-webui package, versions [0.9.5,0.10.0)
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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- published25 Jul 2026
- disclosed24 Jul 2026
- creditUnknown
Introduced: 24 Jul 2026
CVE-2026-59714 (opens in a new tab)How to fix?
Upgrade open-webui to version 0.10.0 or higher.
Overview
open-webui is an Open WebUI
Affected versions of this package are vulnerable to Missing Authorization through the chat completion process. An attacker can overwrite messages in channels they do not belong to, including private and direct message channels, by supplying a crafted chat_id and message_id in a chat completion request. This allows the attacker to impersonate other users and modify message content without proper authorization.