---
id: CVE-2026-58658
title: GPUStack Unauthenticated Information Disclosure via Worker Endpoints
summary: >-
  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
  unpr…
severity: high
cvss: 8.2
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:N'
cvssSource: cna
cwe:
  - CWE-306
vendor: gpustack
product: gpustack
affected:
  - gpustack <= 2.2.1
ssvc:
  exploitation: poc
  automatable: 'yes'
  technicalImpact: partial
  timestamp: '2026-07-15T18:12:02.044480Z'
exploitAvailable: true
published: '2026-07-15'
updated: '2026-11-08'
sourceUpdated: '2026-11-08T14:07:13.337Z'
source: CVEORG
sourceUrl: 'https://www.cve.org/CVERecord?id=CVE-2026-58658'
references:
  - url: 'https://github.com/gpustack/gpustack/issues/5836'
    label: Researcher Disclosure
  - url: 'https://github.com/gpustack/gpustack/issues/5836'
    label: Pull Request
  - url: >-
      https://github.com/gpustack/gpustack/commit/4e20551b5aaf76f93a8769d32b7fef999e22a4d3
    label: Patch Commit
  - url: >-
      https://www.vulncheck.com/advisories/gpustack-unauthenticated-information-disclosure-via-worker-endpoints
tags:
  - cve.org
  - exploit-available
epss: 0.00535
epssPercentile: 0.45429
ingestedAt: '2026-11-08T14:51:22.289Z'
---

## Overview

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.

## Affected

- `gpustack <= 2.2.1`

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.