Authorization Bypass Through User-Controlled Key Affecting chainlit package, versions [,2.8.5)
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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- published4 Dec 2025
- disclosed2 Dec 2025
- creditShotaro Kimura
Introduced: 2 Dec 2025
CVE-2025-68492 (opens in a new tab)How to fix?
Upgrade chainlit to version 2.8.5 or higher.
Overview
chainlit is a Build Conversational AI.
Affected versions of this package are vulnerable to Authorization Bypass Through User-Controlled Key due to a missing authorization check when binding a WebSocket session to a user-supplied threadId. An attacker can exploit this weakness by providing an arbitrary threadId, allowing them to associate their WebSocket connection with threads they do not own. This can expose conversation data or enable unauthorized interaction with resources tied to that thread.