CVE-2026-56340

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"defaultStatus": "unaffected"}, {"cpes": ["cpe:/a:redhat:ai_inference_server:3"], "vendor": "Red Hat", "product": "Red Hat AI Inference Server", "packageName": "rhaiis/vllm-cuda-rhel9", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "defaultStatus": "unaffected"}, {"cpes": ["cpe:/a:redhat:ai_inference_server:3"], "vendor": "Red Hat", "product": "Red Hat AI Inference Server", "packageName": "rhaiis/vllm-neuron-rhel9", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "defaultStatus": "affected"}, {"cpes": ["cpe:/a:redhat:ai_inference_server:3"], "vendor": "Red Hat", "product": "Red Hat AI Inference Server", "packageName": "rhaiis/vllm-rocm-rhel9", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "defaultStatus": "unaffected"}, {"cpes": ["cpe:/a:redhat:ai_inference_server:3"], "vendor": "Red Hat", "product": "Red Hat AI Inference Server", "packageName": "rhaiis/vllm-spyre-rhel9", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "defaultStatus": "affected"}, {"cpes": ["cpe:/a:redhat:ai_inference_server:3"], "vendor": "Red Hat", "product": "Red Hat AI Inference Server", "packageName": "rhaiis/vllm-tpu-rhel9", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "defaultStatus": "affected"}, {"cpes": ["cpe:/a:redhat:ai_inference_server:3"], "vendor": "Red Hat", "product": "Red Hat AI Inference Server", "packageName": "rhaii/vllm-cpu-rhel9", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "defaultStatus": "unaffected"}, {"cpes": ["cpe:/a:redhat:ai_inference_server:3"], "vendor": "Red Hat", "product": "Red Hat AI Inference Server", "packageName": "rhaii/vllm-cuda-rhel9", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "defaultStatus": "unaffected"}, {"cpes": ["cpe:/a:redhat:ai_inference_server:3"], "vendor": "Red Hat", "product": "Red Hat AI Inference Server", "packageName": "rhaii/vllm-gaudi-rhel9", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "defaultStatus": "unaffected"}, {"cpes": ["cpe:/a:redhat:ai_inference_server:3"], "vendor": "Red Hat", "product": "Red Hat AI Inference Server", "packageName": "rhaii/vllm-neuron-rhel9", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "defaultStatus": "unaffected"}, {"cpes": ["cpe:/a:redhat:ai_inference_server:3"], "vendor": "Red Hat", "product": "Red Hat AI Inference Server", "packageName": "rhaii/vllm-rocm-rhel9", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "defaultStatus": "unaffected"}, {"cpes": ["cpe:/a:redhat:ai_inference_server:3"], "vendor": "Red Hat", "product": "Red Hat AI Inference Server", "packageName": "rhaii/vllm-spyre-rhel9", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "defaultStatus": "unaffected"}, {"cpes": ["cpe:/a:redhat:ai_inference_server:3"], "vendor": "Red Hat", "product": "Red Hat AI Inference Server", "packageName": "rhaii/vllm-tpu-rhel9", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "defaultStatus": "unaffected"}, {"cpes": ["cpe:/a:redhat:enterprise_linux_ai:3"], "vendor": "Red Hat", "product": "Red Hat Enterprise Linux AI (RHEL AI) 3", "packageName": "rhelai3/bootc-aws-cuda-rhel9", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "defaultStatus": "unaffected"}, {"cpes": ["cpe:/a:redhat:enterprise_linux_ai:3"], "vendor": "Red Hat", "product": "Red Hat Enterprise Linux AI (RHEL AI) 3", "packageName": "rhelai3/bootc-azure-cuda-rhel9", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "defaultStatus": "unaffected"}, {"cpes": ["cpe:/a:redhat:enterprise_linux_ai:3"], "vendor": "Red Hat", "product": "Red Hat Enterprise Linux AI (RHEL AI) 3", "packageName": 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{"cpes": ["cpe:/a:redhat:enterprise_linux_ai:3"], "vendor": "Red Hat", "product": "Red Hat Enterprise Linux AI (RHEL AI) 3", "packageName": "rhelai3/bootc-rocm-rhel9", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "defaultStatus": "unaffected"}, {"cpes": ["cpe:/a:redhat:openshift_ai"], "vendor": "Red Hat", "product": "Red Hat OpenShift AI (RHOAI)", "packageName": "rhoai/odh-kserve-agent-rhel9", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "defaultStatus": "unaffected"}, {"cpes": ["cpe:/a:redhat:openshift_ai"], "vendor": "Red Hat", "product": "Red Hat OpenShift AI (RHOAI)", "packageName": "rhoai/odh-kserve-controller-rhel9", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "defaultStatus": "unaffected"}, {"cpes": ["cpe:/a:redhat:openshift_ai"], "vendor": "Red Hat", "product": "Red Hat OpenShift AI (RHOAI)", "packageName": "rhoai/odh-kserve-router-rhel9", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "defaultStatus": "unaffected"}, {"cpes": ["cpe:/a:redhat:openshift_ai"], "vendor": "Red Hat", "product": "Red Hat OpenShift AI (RHOAI)", "packageName": "rhoai/odh-kserve-storage-initializer-rhel9", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "defaultStatus": "unaffected"}, {"cpes": ["cpe:/a:redhat:openshift_ai"], "vendor": "Red Hat", "product": "Red Hat OpenShift AI (RHOAI)", "packageName": "rhoai/odh-llm-d-kv-cache-rhel9", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "defaultStatus": "unaffected"}, {"cpes": ["cpe:/a:redhat:openshift_ai"], "vendor": "Red Hat", "product": "Red Hat OpenShift AI (RHOAI)", "packageName": "rhoai/odh-vllm-gaudi-rhel9", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "defaultStatus": "unaffected"}]}], "published": "2026-06-20T19:16:23.567", "references": [{"url": "https://github.com/vllm-project/vllm/security/advisories/GHSA-mcmc-2m55-j8jj", "tags": ["Vendor Advisory"], "source": "disclosure@vulncheck.com"}, {"url": "https://www.vulncheck.com/advisories/vllm-denial-of-service-via-unvalidated-multimodal-embeddings", "tags": ["Third Party Advisory"], "source": "disclosure@vulncheck.com"}, {"url": "https://access.redhat.com/security/cve/CVE-2026-56340", "source": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c"}, {"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2491060", "source": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c"}, {"url": "https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-56340.json", "source": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c"}], "vulnStatus": "Modified", "weaknesses": [{"type": "Secondary", "source": "disclosure@vulncheck.com", "description": [{"lang": "en", "value": "CWE-20"}]}, {"type": "Secondary", "source": "nvd@nist.gov", "description": [{"lang": "en", "value": "NVD-CWE-noinfo"}]}, {"type": "Secondary", "source": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c", "description": [{"lang": "en", "value": "CWE-787"}]}], "descriptions": [{"lang": "en", "value": "vLLM versions >= 0.10.2 and < 0.13.0 are missing sparse tensor validation in multimodal embeddings processing. Because PyTorch disables sparse tensor invariant checks by default, an attacker can submit crafted embedding requests with malformed (negative or out-of-bounds) tensor indices, when the prompt-embeds feature is enabled, to trigger crashes or resource exhaustion (denial of service), with potential for out-of-bounds/write-what-where memory corruption. This continues CVE-2025-62164, whose prior fix only disabled the feature by default rather than addressing the root cause."}, {"lang": "es", "value": "Las versiones de vLLM >= 0.10.2 y anterior a 0.13.0 carecen de validaci\u00f3n de tensores dispersos en el procesamiento de incrustaciones multimodales. Debido a que PyTorch deshabilita las comprobaciones de invariantes de tensores dispersos por defecto, un atacante puede enviar solicitudes de incrustaci\u00f3n manipuladas con \u00edndices de tensor malformados (negativos o fuera de l\u00edmites), cuando la caracter\u00edstica 'prompt-embeds' est\u00e1 habilitada, para provocar fallos o agotamiento de recursos (denegaci\u00f3n de servicio), con potencial de corrupci\u00f3n de memoria fuera de l\u00edmites/escritura-arbitraria. Esto contin\u00faa CVE-2025-62164, cuya correcci\u00f3n anterior solo deshabilit\u00f3 la caracter\u00edstica por defecto en lugar de abordar la causa ra\u00edz."}], "lastModified": "2026-10-23T23:10:00.157", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:vllm:vllm:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "69B9B776-8C9E-4BA9-94C9-2867AE83F571", "versionEndExcluding": "0.13.0", "versionStartIncluding": "0.10.2"}], "operator": "OR"}]}], "sourceIdentifier": "disclosure@vulncheck.com"}