CVE-2026-102895 GPUStack Improper Authentication
- Exploited in the wild
- Since 9 Nov 2026
- Fix
- Available
What is CVE-2026-102895?
CVE-2026-102895 is a critical vulnerability in gpustack, published on 4 Nov 2026.
Official 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.
Which versions are affected by CVE-2026-102895?
1 open source package ship an affected version, including gpustack. It affects 1 product.
| Package | Affected | Fixed in |
|---|---|---|
gpustack PyPI | All versions | 2.2.0 |
Products include Gpustack.
How do I fix CVE-2026-102895?
Upgrade gpustack to 2.2.0 or later. US federal agencies must fix it by 12 Nov 2026.
Is CVE-2026-102895 being exploited?
Yes. Attackers have exploited CVE-2026-102895 in the wild since at least 9 Nov 2026.
Sources
Also known as GHSA-gj9m-f8ph-pmhr.