SpectoLabs hoverfly up to 1.11.x WebSocket Endpoint /api/v2/ws/logs information disclosure

Summaryinfo

A vulnerability classified as problematic was found in SpectoLabs hoverfly up to 1.11.x. Affected by this vulnerability is an unknown functionality of the file /api/v2/ws/logs of the component WebSocket Endpoint. Executing a manipulation can lead to information disclosure. The identification of this vulnerability is CVE-2025-54376. The attack may be launched remotely. There is no exploit available. Upgrading the affected component is advised.

Detailsinfo

A vulnerability has been found in SpectoLabs hoverfly up to 1.11.x and classified as problematic. This vulnerability affects an unknown function of the file /api/v2/ws/logs of the component WebSocket Endpoint. The manipulation with an unknown input leads to a information disclosure vulnerability. The CWE definition for the vulnerability is CWE-200. The product exposes sensitive information to an actor that is not explicitly authorized to have access to that information. As an impact it is known to affect confidentiality. CVE summarizes:

Hoverfly is an open source API simulation tool. In versions 1.11.3 and prior, Hoverfly’s admin WebSocket endpoint /api/v2/ws/logs is not protected by the same authentication middleware that guards the REST admin API. Consequently, an unauthenticated remote attacker can stream real-time application logs (information disclosure) and/or gain insight into internal file paths, request/response bodies, and other potentially sensitive data emitted in logs. Version 1.12.0 contains a fix for the issue.

The advisory is available at github.com. This vulnerability was named CVE-2025-54376 since 07/21/2025. The exploitation appears to be easy. The attack can be initiated remotely. No form of authentication is required for a successful exploitation. Technical details are known, but there is no available exploit. This vulnerability is assigned to T1592 by the MITRE ATT&CK project.

Upgrading to version 1.12.0 eliminates this vulnerability. Applying the patch ffc2cc34563de67fe1a04f7ba5d78fa2d4564424 is able to eliminate this problem. The bugfix is ready for download at github.com. The best possible mitigation is suggested to be upgrading to the latest version.

The vulnerability is also documented in the vulnerability database at EUVD (EUVD-2025-27610). If you want to get best quality of vulnerability data, you may have to visit VulDB.

Productinfo

Vendor

• SpectoLabs

Name

• hoverfly

Version

• 1.0
• 1.1
• 1.2
• 1.3
• 1.4
• 1.5
• 1.6
• 1.7
• 1.8
• 1.9
• 1.10
• 1.11

License

• open-source

Website

• Product: https://github.com/SpectoLabs/hoverfly/

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If you want to get best quality of vulnerability data, you may have to visit VulDB.

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