CVE-2026-102895

CRITICAL9.8

CISA KEV

Published 2026-11-04 · Updated 2026-11-10 · Source security-advisories@github.com

Summary

CVE-2026-102895 is a critical-severity (CVSS 9.8) vulnerability in GPUStack GPUStack. CISA added it to the Known Exploited Vulnerabilities catalog on November 9, 2026, which means exploitation in the wild has been confirmed; US federal agencies must remediate it by November 12, 2026. CISA does not currently list it as used in ransomware campaigns.

All 1 known-exploited GPUStack vulnerabilities →

Description

GPUStack is an open-source GPU cluster manager for AI model serving and GPU instance provisioning. Prior to 2.2.0, get_current_user in gpustack/api/auth.py treated a loopback request source as the built-in administrator when force_auth_localhost was false, which was the default. A remote request could appear to originate from 127.0.0.1 because client_ip_getter accepted a same-host reverse proxy peer or a client-supplied X-GPUStack-Real-IP loopback value. The bypass allowed unauthenticated administrative access, including user and model changes, persistent administrator API-key creation, disclosure of worker and cloud-provider secrets, and code execution through POST /v2/inference-backends/from-yaml. Exploitation was observed in the wild against a 2.1.1 deployment. This issue is fixed in version 2.2.0.

CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CWE-287CWE-290CWE-346

CISA Known-Exploited Vulnerability

Product: GPUStack — GPUStack

Name: GPUStack Improper Authentication Vulnerability

Date added: 2026-11-09 · Due: 2026-11-12

Required action: Apply mitigations in accordance with vendor instructions, ensuring compliance with CISA’s BOD 26-04 Prioritizing Security Updates Based on Risk (see URL in Notes) guidance and CISA’s “Forensics Triage Requirements” (see URL in Notes). Follow applicable BOD 26-04 guidance for cloud services or discontinue use of the product if mitigations are unavailable. Stakeholders are responsible for evaluating each asset's internet exposure and ensuring adherence to BOD 26-04 patching guidelines.

References

View on NVD

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