Open-WebUI up to 0.6.32 Endpoint /api/config improper authentication

Summaryinfo

A vulnerability, which was classified as problematic, has been found in Open-WebUI up to 0.6.32. This impacts an unknown function of the file /api/config of the component Endpoint. Performing a manipulation results in improper authentication. This vulnerability is identified as CVE-2025-63391. The attack can be initiated remotely. There is not any exploit available.

Detailsinfo

A vulnerability classified as problematic has been found in Open-WebUI up to 0.6.32. This affects an unknown functionality of the file /api/config of the component Endpoint. The manipulation with an unknown input leads to a improper authentication vulnerability. CWE is classifying the issue as CWE-287. When an actor claims to have a given identity, the product does not prove or insufficiently proves that the claim is correct. This is going to have an impact on confidentiality. The summary by CVE is:

An authentication bypass vulnerability exists in Open-WebUI <=0.6.32 in the /api/config endpoint. The endpoint lacks proper authentication and authorization controls, exposing sensitive system configuration data to unauthenticated remote attackers.

The advisory is shared at github.com. This vulnerability is uniquely identified as CVE-2025-63391 since 10/27/2025. The exploitability is told to be easy. It is possible to initiate the attack remotely. No form of authentication is needed for exploitation. Technical details are known, but no exploit is available. The price for an exploit might be around USD $0-$5k at the moment (estimation calculated on 12/18/2025).

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

Name

• Open-WebUI

Version

• 0.6.0
• 0.6.1
• 0.6.2
• 0.6.3
• 0.6.4
• 0.6.5
• 0.6.6
• 0.6.7
• 0.6.8
• 0.6.9
• 0.6.10
• 0.6.11
• 0.6.12
• 0.6.13
• 0.6.14
• 0.6.15
• 0.6.16
• 0.6.17
• 0.6.18
• 0.6.19
• 0.6.20
• 0.6.21
• 0.6.22
• 0.6.23
• 0.6.24
• 0.6.25
• 0.6.26
• 0.6.27
• 0.6.28
• 0.6.29
• 0.6.30
• 0.6.31
• 0.6.32

Website

• Product: https://github.com/open-webui/open-webui/

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Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

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