CVE-2026-58658
HighCVSS 8.2Exploitation Probability (EPSS)
Low risk31th percentile - higher than 31% of all known CVEs
Summary
GPUStack through version 2.2.1 contains an unauthenticated information disclosure vulnerability that allows attackers to access sensitive inference logs and modify worker configuration via 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.
Risk Assessment
The risk for the organization includes leakage of confidential data processed by AI models (prompts and completions) and the possibility of unauthorized modification of worker configuration, which could lead to system integrity compromise and further attacks.
Recommendation
Immediately update GPUStack to a version containing commit 4e20551 or later, and restrict access to the worker port to trusted networks only.
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Original NVD description (English source)
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.

