{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-102895", "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "state": "PUBLISHED", "assignerShortName": "GitHub_M", "dateReserved": "2026-09-29T17:34:42.743Z", "datePublished": "2026-11-04T21:16:59.842Z", "dateUpdated": "2026-11-04T21:16:59.842Z"}, "containers": {"cna": {"title": "GPUStack: Authentication bypass via trusted loopback source (reverse-proxy TCP peer or X-GPUStack-Real-IP header) grants unauthenticated admin", "problemTypes": [{"descriptions": [{"cweId": "CWE-287", "lang": "en", "description": "CWE-287: Improper Authentication", "type": "CWE"}]}, {"descriptions": [{"cweId": "CWE-290", "lang": "en", "description": "CWE-290: Authentication Bypass by Spoofing", "type": "CWE"}]}, {"descriptions": [{"cweId": "CWE-346", "lang": "en", "description": "CWE-346: Origin Validation Error", "type": "CWE"}]}], "metrics": [{"cvssV3_1": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 9.8, "baseSeverity": "CRITICAL", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H", "version": "3.1"}}], "references": [{"name": "https://github.com/gpustack/gpustack/security/advisories/GHSA-gj9m-f8ph-pmhr", "tags": ["x_refsource_CONFIRM"], "url": "https://github.com/gpustack/gpustack/security/advisories/GHSA-gj9m-f8ph-pmhr"}, {"name": "https://github.com/gpustack/gpustack/pull/5346", "tags": ["x_refsource_MISC"], "url": "https://github.com/gpustack/gpustack/pull/5346"}, {"name": "https://github.com/gpustack/gpustack/commit/53f42a6a553542974396d16a4ff6b12bcbedb48d", "tags": ["x_refsource_MISC"], "url": "https://github.com/gpustack/gpustack/commit/53f42a6a553542974396d16a4ff6b12bcbedb48d"}, {"name": "https://github.com/gpustack/gpustack/releases/tag/v2.2.0", "tags": ["x_refsource_MISC"], "url": "https://github.com/gpustack/gpustack/releases/tag/v2.2.0"}], "affected": [{"vendor": "gpustack", "product": "gpustack", "versions": [{"version": "< 2.2.0", "status": "affected"}]}], "providerMetadata": {"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "shortName": "GitHub_M", "dateUpdated": "2026-11-04T21:16:59.842Z"}, "descriptions": [{"lang": "en", "value": "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."}], "source": {"advisory": "GHSA-gj9m-f8ph-pmhr", "discovery": "UNKNOWN"}}}}

{}

{"affected": [{"affectedData": [{"product": "gpustack", "vendor": "gpustack", "versions": [{"status": "affected", "version": "< 2.2.0"}]}], "source": "security-advisories@github.com"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "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."}], "id": "CVE-2026-102895", "lastModified": "2026-11-04T22:17:44.613", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 9.8, "baseSeverity": "CRITICAL", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H", "version": "3.1"}, "exploitabilityScore": 3.9, "impactScore": 5.9, "source": "security-advisories@github.com", "type": "Secondary"}]}, "published": "2026-11-04T22:17:44.613", "references": [{"source": "security-advisories@github.com", "url": "https://github.com/gpustack/gpustack/commit/53f42a6a553542974396d16a4ff6b12bcbedb48d"}, {"source": "security-advisories@github.com", "url": "https://github.com/gpustack/gpustack/pull/5346"}, {"source": "security-advisories@github.com", "url": "https://github.com/gpustack/gpustack/releases/tag/v2.2.0"}, {"source": "security-advisories@github.com", "url": "https://github.com/gpustack/gpustack/security/advisories/GHSA-gj9m-f8ph-pmhr"}], "sourceIdentifier": "security-advisories@github.com", "vulnStatus": "Received", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-287"}, {"lang": "en", "value": "CWE-290"}, {"lang": "en", "value": "CWE-346"}], "source": "security-advisories@github.com", "type": "Primary"}]}

{}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[0,2.2.0)"}}], "enrichment": {"confidence": 100.0, "confidence_source": "matching", "scores": [{"score": 100.0, "source": "matching"}]}, "original": {"product": "gpustack", "source": "cna", "vendor": "gpustack"}, "product": "gpustack", "vendor": "gpustack"}], "created": "2026-11-04T23:00:21.131566+00:00", "updated": "2026-11-04T23:15:15.782285+00:00", "vendors": ["gpustack", "gpustack$PRODUCT$gpustack"]}