Missing Authorization Affecting open-webui package, versions [0.9.6,0.11.0)
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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- published9 Aug 2026
- disclosed4 Aug 2026
- creditUnknown
Introduced: 4 Aug 2026
NewCVE-2026-70483 (opens in a new tab)How to fix?
Upgrade open-webui to version 0.11.0 or higher.
Overview
open-webui is an Open WebUI
Affected versions of this package are vulnerable to Missing Authorization through the delete_chat_by_id process. An attacker can disrupt another user's active chat generation tasks by sending a DELETE request to the relevant endpoint if they possess the target chat's identifier. This is only exploitable if the attacker has a valid authenticated account and knows or can obtain the victim's chat id while a generation is in progress.