GPUStack up to 2.2.1 Debug/Logs Instance information disclosure

Summaryinfo

A vulnerability described as problematic has been identified in GPUStack up to 2.2.1. The impacted element is an unknown function of the component Debug/Logs. Executing a manipulation of the argument Instance can lead to information disclosure. This vulnerability is tracked as CVE-2026-58658. The attack can be launched remotely. No exploit exists.

Detailsinfo

A vulnerability classified as problematic was found in GPUStack up to 2.2.1. This vulnerability affects an unknown code block of the component Debug/Logs. The manipulation of the argument instance 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:

GPUStack through 2.2.1, fixed in commit 4e20551, contains an unauthenticated information disclosure vulnerability that allows unauthenticated attackers to access sensitive inference logs and modify worker configuration by exploiting unprotected /serveLogs and /debug endpoints on the worker port. Attackers can enumerate model instance IDs to stream serving logs containing prompts and completions, change log levels, and read memory profiling data without any authentication.

The advisory is available at github.com. This vulnerability was named CVE-2026-58658 since 07/01/2026. 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. The structure of the vulnerability defines a possible price range of USD $0-$5k at the moment (estimation calculated on 07/15/2026). This vulnerability is assigned to T1592 by the MITRE ATT&CK project.

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

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Productinfo

Name

• GPUStack

Version

• 2.2.0
• 2.2.1

Website

• Product: https://github.com/gpustack/gpustack/

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