CVE-2024-9840 Information

Description

A Denial of Service (DoS) vulnerability exists in open-webui/open-webui version 0.3.21. This vulnerability affects multiple endpoints including /ollama/models/upload /audio/api/v1/transcriptions and /rag/api/v1/doc. The application processes multipart boundaries without authentication leading to resource exhaustion. By appending additional characters to the multipart boundary an attacker can cause the server to parse each byte of the boundary ultimately leading to service unavailability. This vulnerability can be exploited remotely resulting in high CPU and memory usage and rendering the service inaccessible to legitimate users.

Reference

https://huntr.com/bounties/9178f09e-4d4f-4a5b-bc32-cada7445b03c