Unauthenticated Information Disclosure in GPUStack by GPUStack Inc.
CVE-2026-58658

8.8HIGH

Key Information:

Vendor

Gpustack

Status
Gpustack
Vendor
CVE Published:
15 July 2026

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2026-58658?

The vulnerability in GPUStack before version 2.2.1 allows unauthenticated attackers to exploit the unprotected /serveLogs and /debug endpoints on the worker port. This exploitation enables attackers to access sensitive inference logs, including enumerating model instance IDs, streaming logs containing prompts and completions, altering log levels, and accessing memory profiling data without authentication.

Affected Version(s)

gpustack 0 <= 2.2.1

gpustack 4e20551b5aaf76f93a8769d32b7fef999e22a4d3

Exploit Proof of Concept (PoC)

PoC code is written by security researchers to demonstrate the vulnerability can be exploited. PoC code is also a key component for weaponization which could lead to ransomware.

CVE-2026-58658 - Proof of Concept

References

https://github.com/gpustack/gpustack/issues/5836
technical-descriptionexploit
https://github.com/gpustack/gpustack/issues/5836
issue-tracking
https://github.com/gpustack/gpustack/commit/4e20551b5aaf7...
patch

CVSS V4

Score:
8.8
Severity:
HIGH
Confidentiality:
High
Integrity:
Low
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
None

Timeline

  • 🟡

    Public PoC available

  • 👾

    Exploit known to exist

  • Vulnerability published

  • Vulnerability Reserved

Credit

George Chen
.