CVEs / CVE-2026-102895

CVE-2026-102895: gpustack gpustack vulnerability

critical 9.8 CVSS 3.1 (from the CNA)
Last changed at its sources 9 Nov 2026

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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.
The CVE record, via NVD · published 4 Nov 2026 · NVD status: Analyzed

Affected and fixed versions

As stated by the CVE record (from the CNA)
Product	Affected	Fixed in
gpustack gpustack	< 2.2.0	—

As stated by OSV
Product	Affected	Fixed in
gpustack (PyPI)	before 2.2.0	2.2.0

Package versions from GHSA-gj9m-f8ph-pmhr.

Exploitation

Not in the CISA Known Exploited Vulnerabilities catalog as of 6 Nov 2026.

Severity

CVSS 3.1	9.8 critical `CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H` Scored by the CNA ([email protected])
Weakness	CWE-287, CWE-290, CWE-346

On the Stackurity blog

GPUStack CVE-2026-102895: exploited auth bypass, how to fix it 10 Nov 2026

References

CVE-2026-102895 on NVD
CVE-2026-102895 on OSV
https://github.com/gpustack/gpustack/commit/53f42a6a553542974396d16a4ff6b12bcbedb48d Patch
https://github.com/gpustack/gpustack/pull/5346 Issue Tracking, Patch
https://github.com/gpustack/gpustack/releases/tag/v2.2.0 Release Notes
https://github.com/gpustack/gpustack/security/advisories/GHSA-gj9m-f8ph-pmhr Mitigation, Vendor Advisory
https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-102895 US Government Resource

Sources

Exploitation status from the CISA Known Exploited Vulnerabilities catalog. EPSS scores from FIRST. Descriptions, severity and references from the National Vulnerability Database. Open-source package versions from OSV (CC-BY 4.0). Text is shown as each source states it; Stackurity does not edit it. Check the vendor's advisory before acting.

This product uses data from the NVD API but is not endorsed or certified by the NVD.