Authorization Bypass Through User-Controlled Key Affecting open-webui package, versions [,0.9.5)
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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- published17 May 2026
- disclosed14 May 2026
- creditkikayli
Introduced: 14 May 2026
NewCVE-2026-45386 (opens in a new tab)How to fix?
Upgrade open-webui to version 0.9.5 or higher.
Overview
open-webui is an Open WebUI
Affected versions of this package are vulnerable to Authorization Bypass Through User-Controlled Key in the pin_channel_message process. An attacker can modify the is_pinned, pinned_by, and pinned_at fields of messages by sending API requests with only read-level permissions.