--- title: "CVE-2026-102895: GPUStack: Authentication bypass… | CubePath" 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…" language: en source: https://cubepath.com/security/cve/CVE-2026-102895 --- # CVE-2026-102895: GPUStack: Authentication bypass… | CubePath ## 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. Official description from the CVE record, published by GitHub\_M. Copyright © 1999-2026 The MITRE Corporation. See [/security/cve/legal](https://cubepath.com/security/cve/legal) for the CVE license. [View the record on cve.org](https://www.cve.org/CVERecord?id=CVE-2026-102895) ## Key data ### CVSS 3.1 Critical 9.8 Score published by GitHub\_M in the CVE record. CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H | Metric | Value | What it means | | ---------------------- | --------- | ----------------------------------------------------------------------------------- | | Attack vector | Network | The vulnerable component can be reached over a network, possibly from the Internet. | | Attack complexity | Low | No special conditions are needed. The attack can be repeated at will. | | Privileges required | None | No account or privileges are needed. | | User interaction | None | No action from any user is needed. | | Scope | Unchanged | The impact stays within the vulnerable component. | | Confidentiality impact | High | Serious or total effect on the secrecy of data. | | Integrity impact | High | Serious or total effect on the trustworthiness of data. | | Availability impact | High | Serious or total effect on availability. | CVSS is owned and managed by FIRST.Org, Inc. (FIRST) and is used by permission. Each CVSS score on this site is shown together with its vector string, as published in the CVE record by the source named next to it. Learn more at [first.org/cvss](https://www.first.org/cvss/) . ### EPSS Exploit Prediction Scoring System by FIRST: an estimate of the probability that exploitation activity will be observed in the next 30 days. Score 0.00555 (0.6% probability) Percentile 46.7% Scores of Nov 10, 2026 Model v2026.06.15 ### CISA Known Exploited Vulnerabilities This CVE is listed in the CISA KEV catalog. Name in the catalog GPUStack Improper Authentication Vulnerability Added to the catalog Nov 9, 2026 Federal due date Nov 12, 2026 ### CISA assessment as of Nov 5, 2026 Stakeholder-Specific Vulnerability Categorization (SSVC) decision points added by CISA. Exploitation Recorded by CISA as active Automatable yes Technical impact total ### Weakness (CWE) CWE catalog version 5.0. CWE names: Copyright © 2006-2026, The MITRE Corporation. See [/security/cve/legal](https://cubepath.com/security/cve/legal) for the CWE license. - [CWE-287](https://cwe.mitre.org/data/definitions/287.html) Improper Authentication - [CWE-290](https://cwe.mitre.org/data/definitions/290.html) Authentication Bypass by Spoofing - [CWE-346](https://cwe.mitre.org/data/definitions/346.html) Origin Validation Error ## Affected products Products listed in the CVE record, as the CNA published them. - gpustack - affected: < 2.2.0 ## References Links listed in the CVE record. They lead to other sites, which CubePath does not control. - [github.com/gpustack/gpustack/security/advisories/GHSA-gj9m-…](https://github.com/gpustack/gpustack/security/advisories/GHSA-gj9m-f8ph-pmhr) - [github.com/gpustack/gpustack/pull/5346](https://github.com/gpustack/gpustack/pull/5346) - [github.com/gpustack/gpustack/commit/53f42a6a553542974396d16…](https://github.com/gpustack/gpustack/commit/53f42a6a553542974396d16a4ff6b12bcbedb48d) - [github.com/gpustack/gpustack/releases/tag/v2.2.0](https://github.com/gpustack/gpustack/releases/tag/v2.2.0) ## Timeline 1. ID reserved Sep 29, 2026 2. Record published Nov 4, 2026 3. Added to CISA KEV Nov 9, 2026 4. Record last updated Nov 10, 2026 ## Look up another CVE ## About CubePath CubePath is a cloud provider with data centers in Europe and the United States. It offers VPS, bare metal servers and DDoS protection. [Cloud VPS](https://cubepath.com/vps) [DDoS protection](https://cubepath.com/ddos-protection) Data from the CVE Program (MITRE), CISA KEV and FIRST EPSS. CVSS is owned by FIRST and used by permission. Not affiliated with or endorsed by MITRE, CISA or FIRST. Data as of Nov 10, 2026, 19:37 UTC. [Sources and licenses](https://cubepath.com/security/cve/legal)