{ "dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": { "cveId": "CVE-2026-41523", "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "state": "PUBLISHED", "assignerShortName": "GitHub_M", "dateReserved": "2026-04-20T18:18:50.682Z", "datePublished": "2026-06-22T22:18:14.494Z", "dateUpdated": "2026-09-04T12:04:58.778Z" }, "containers": { "cna": { "title": "vLLM: Security Check Bypass via assert Statement in Activation Function Loading Allows Arbitrary Code Execution", "problemTypes": [ { "descriptions": [ { "cweId": "CWE-94", "lang": "en", "description": "CWE-94: Improper Control of Generation of Code ('Code Injection')", "type": "CWE" } ] }, { "descriptions": [ { "cweId": "CWE-617", "lang": "en", "description": "CWE-617: Reachable Assertion", "type": "CWE" } ] } ], "metrics": [ { "cvssV3_1": { "attackComplexity": "HIGH", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 7.5, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "REQUIRED", "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H", "version": "3.1" } } ], "references": [ { "name": "https://github.com/vllm-project/vllm/security/advisories/GHSA-q8gq-377p-jq3r", "tags": [ "x_refsource_CONFIRM" ], "url": "https://github.com/vllm-project/vllm/security/advisories/GHSA-q8gq-377p-jq3r" }, { "name": "https://github.com/vllm-project/vllm/commit/b3c7ffcab82c2439726f8cb213800f6f38c023d3", "tags": [ "x_refsource_MISC" ], "url": "https://github.com/vllm-project/vllm/commit/b3c7ffcab82c2439726f8cb213800f6f38c023d3" }, { "name": "https://huntr.com/bounties/dcb05b04-e625-41e7-adbc-bbae0cc2d64c", "tags": [ "x_refsource_MISC" ], "url": "https://huntr.com/bounties/dcb05b04-e625-41e7-adbc-bbae0cc2d64c" } ], "affected": [ { "vendor": "vllm-project", "product": "vllm", "versions": [ { "version": "< 0.22.0", "status": "affected" } ] } ], "providerMetadata": { "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "shortName": "GitHub_M", "dateUpdated": "2026-06-22T22:18:14.494Z" }, "descriptions": [ { "lang": "en", "value": "vLLM is an inference and serving engine for large language models (LLMs). Prior to 0.22.0, an assert-based security check in vLLM's activation function loading allows any unauthenticated attacker to achieve arbitrary code execution on the server by publishing a malicious HuggingFace model, when vLLM runs in Python optimized mode (python -O or PYTHONOPTIMIZE=1). This vulnerability is fixed in 0.22.0." } ], "source": { "advisory": "GHSA-q8gq-377p-jq3r", "discovery": "UNKNOWN" } }, "adp": [ { "metrics": [ { "other": { "type": "ssvc", "content": { "timestamp": "2026-06-23T12:23:15.308986Z", "id": "CVE-2026-41523", "options": [ { "Exploitation": "none" }, { "Automatable": "no" }, { "Technical Impact": "total" } ], "role": "CISA Coordinator", "version": "2.0.3" } } } ], "title": "CISA ADP Vulnrichment", "providerMetadata": { "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-06-23T12:23:42.580Z" } }, { "affected": [ { "collectionURL": "https://catalog.redhat.com/software/containers/", "cpes": [ "cpe:/a:redhat:ai_inference_server:3.2::el9" ], "defaultStatus": "affected", "packageName": "rhaiis/vllm-cuda-rhel9", "product": "Red Hat AI Inference Server 3.2", "vendor": "Red Hat", "versions": [ { "lessThan": "*", "status": "unaffected", "version": "1782951012", "versionType": "rpm" }, { "lessThan": "*", "status": "unaffected", "version": "1787860580", "versionType": "rpm" } ] }, { "collectionURL": "https://catalog.redhat.com/software/containers/", "cpes": [ "cpe:/a:redhat:ai_inference_server:3.2::el9" ], "defaultStatus": "affected", "packageName": "rhaiis/vllm-rocm-rhel9", "product": "Red Hat AI Inference Server 3.2", "vendor": "Red Hat", "versions": [ { "lessThan": "*", "status": "unaffected", "version": "1782951244", "versionType": "rpm" }, { "lessThan": "*", "status": "unaffected", "version": "1787884873", "versionType": "rpm" } ] }, { "collectionURL": "https://catalog.redhat.com/software/containers/", "cpes": [ "cpe:/a:redhat:ai_inference_server:3.3::el9" ], "defaultStatus": "affected", "packageName": "rhaiis/vllm-cuda-rhel9", "product": "Red Hat AI Inference Server 3.3", "vendor": "Red Hat", "versions": [ { "lessThan": "*", "status": "unaffected", "version": "1787161382", "versionType": "rpm" } ] }, { "collectionURL": "https://catalog.redhat.com/software/containers/", "cpes": [ "cpe:/a:redhat:ai_inference_server:3.3::el9" ], "defaultStatus": "affected", "packageName": "rhaiis/vllm-rocm-rhel9", "product": "Red Hat AI Inference Server 3.3", "vendor": "Red Hat", "versions": [ { "lessThan": "*", "status": "unaffected", "version": "1787161803", "versionType": "rpm" } ] }, { "collectionURL": "https://catalog.redhat.com/software/containers/", "cpes": [ "cpe:/a:redhat:ai_inference_server:3.4::el9" ], "defaultStatus": "affected", "packageName": "rhaii/vllm-cpu-rhel9", "product": "Red Hat AI Inference Server 3.4", "vendor": "Red Hat", "versions": [ { "lessThan": "*", "status": "unaffected", "version": "1787151769", "versionType": "rpm" } ] }, { "collectionURL": "https://catalog.redhat.com/software/containers/", "cpes": [ "cpe:/a:redhat:ai_inference_server:3.4::el9" ], "defaultStatus": "affected", "packageName": "rhaii/vllm-spyre-rhel9", "product": "Red Hat AI Inference Server 3.4", "vendor": "Red Hat", "versions": [ { "lessThan": "*", "status": "unaffected", "version": "1787151840", "versionType": "rpm" } ] }, { "collectionURL": "https://catalog.redhat.com/software/containers/", "cpes": [ "cpe:/a:redhat:ai_inference_server:3.4::el9" ], "defaultStatus": "affected", "packageName": "rhaii/vllm-cuda-rhel9", "product": "Red Hat AI Inference Server 3.4", "vendor": "Red Hat", "versions": [ { "lessThan": "*", "status": "unaffected", "version": "1787151771", "versionType": "rpm" } ] }, { "collectionURL": "https://catalog.redhat.com/software/containers/", "cpes": [ "cpe:/a:redhat:ai_inference_server:3.4::el9" ], "defaultStatus": "affected", "packageName": "rhaii/vllm-rocm-rhel9", "product": "Red Hat AI Inference Server 3.4", "vendor": "Red Hat", "versions": [ { "lessThan": "*", "status": "unaffected", "version": "1787151774", "versionType": "rpm" } ] }, { "collectionURL": "https://catalog.redhat.com/software/containers/", "cpes": [ "cpe:/a:redhat:enterprise_linux_ai:3.3::el9" ], "defaultStatus": "affected", "packageName": "rhelai3/disk-image-cuda-rhel9", "product": "Red Hat Enterprise Linux AI 3.3", "vendor": "Red Hat", "versions": [ { "lessThan": "*", "status": "unaffected", "version": "1788290314", "versionType": "rpm" } ] }, { "collectionURL": "https://catalog.redhat.com/software/containers/", "cpes": [ "cpe:/a:redhat:enterprise_linux_ai:3.3::el9" ], "defaultStatus": "affected", "packageName": "rhelai3/bootc-aws-cuda-rhel9", "product": "Red Hat Enterprise Linux AI 3.3", "vendor": "Red Hat", "versions": [ { "lessThan": "*", "status": "unaffected", "version": "1788273908", "versionType": "rpm" } ] }, { "collectionURL": "https://catalog.redhat.com/software/containers/", "cpes": [ "cpe:/a:redhat:enterprise_linux_ai:3.3::el9" ], "defaultStatus": "affected", "packageName": "rhelai3/bootc-azure-cuda-rhel9", "product": "Red Hat Enterprise Linux AI 3.3", "vendor": "Red Hat", "versions": [ { "lessThan": "*", "status": "unaffected", "version": "1788273909", "versionType": "rpm" } ] }, { "collectionURL": "https://catalog.redhat.com/software/containers/", "cpes": [ "cpe:/a:redhat:enterprise_linux_ai:3.3::el9" ], "defaultStatus": "affected", "packageName": "rhelai3/bootc-azure-rocm-rhel9", "product": "Red Hat Enterprise Linux AI 3.3", "vendor": "Red Hat", "versions": [ { "lessThan": "*", "status": "unaffected", "version": "1788273908", "versionType": "rpm" } ] }, { "collectionURL": "https://catalog.redhat.com/software/containers/", "cpes": [ "cpe:/a:redhat:enterprise_linux_ai:3.3::el9" ], "defaultStatus": "affected", "packageName": "rhelai3/bootc-cuda-rhel9", "product": "Red Hat Enterprise Linux AI 3.3", "vendor": "Red Hat", "versions": [ { "lessThan": "*", "status": "unaffected", "version": "1788260684", "versionType": "rpm" } ] }, { "collectionURL": "https://catalog.redhat.com/software/containers/", "cpes": [ "cpe:/a:redhat:enterprise_linux_ai:3.3::el9" ], "defaultStatus": "affected", "packageName": "rhelai3/bootc-gcp-cuda-rhel9", "product": "Red Hat Enterprise Linux AI 3.3", "vendor": "Red Hat", "versions": [ { "lessThan": "*", "status": "unaffected", "version": "1788273977", "versionType": "rpm" } ] }, { "collectionURL": "https://catalog.redhat.com/software/containers/", "cpes": [ "cpe:/a:redhat:enterprise_linux_ai:3.3::el9" ], "defaultStatus": "affected", "packageName": "rhelai3/bootc-rocm-rhel9", "product": "Red Hat Enterprise Linux AI 3.3", "vendor": "Red Hat", "versions": [ { "lessThan": "*", "status": "unaffected", "version": "1788260620", "versionType": "rpm" } ] }, { "collectionURL": "https://catalog.redhat.com/software/containers/", "cpes": [ "cpe:/a:redhat:enterprise_linux_ai:3.4::el9" ], "defaultStatus": "affected", "packageName": "rhelai3/disk-image-cuda-rhel9", "product": "Red Hat Enterprise Linux AI 3.4", "vendor": "Red Hat", "versions": [ { "lessThan": "*", "status": "unaffected", "version": "1787310717", "versionType": "rpm" } ] }, { "collectionURL": "https://catalog.redhat.com/software/containers/", "cpes": [ "cpe:/a:redhat:enterprise_linux_ai:3.4::el9" ], "defaultStatus": "affected", "packageName": "rhelai3/bootc-aws-cuda-rhel9", "product": "Red Hat Enterprise Linux AI 3.4", "vendor": "Red Hat", "versions": [ { "lessThan": "*", "status": "unaffected", "version": "1787253912", "versionType": "rpm" } ] }, { "collectionURL": "https://catalog.redhat.com/software/containers/", "cpes": [ "cpe:/a:redhat:enterprise_linux_ai:3.4::el9" ], "defaultStatus": "affected", "packageName": "rhelai3/bootc-azure-cuda-rhel9", "product": "Red Hat Enterprise Linux AI 3.4", "vendor": "Red Hat", "versions": [ { "lessThan": "*", "status": "unaffected", "version": "1787253989", "versionType": "rpm" } ] }, { "collectionURL": "https://catalog.redhat.com/software/containers/", "cpes": [ "cpe:/a:redhat:enterprise_linux_ai:3.4::el9" ], "defaultStatus": "affected", "packageName": "rhelai3/bootc-azure-rocm-rhel9", "product": "Red Hat Enterprise Linux AI 3.4", "vendor": "Red Hat", "versions": [ { "lessThan": "*", "status": "unaffected", "version": "1787254059", "versionType": "rpm" } ] }, { "collectionURL": "https://catalog.redhat.com/software/containers/", "cpes": [ "cpe:/a:redhat:enterprise_linux_ai:3.4::el9" ], "defaultStatus": "affected", "packageName": "rhelai3/bootc-cuda-rhel9", "product": "Red Hat Enterprise Linux AI 3.4", "vendor": "Red Hat", "versions": [ { "lessThan": "*", "status": "unaffected", "version": "1787243961", "versionType": "rpm" } ] }, { "collectionURL": "https://catalog.redhat.com/software/containers/", "cpes": [ "cpe:/a:redhat:enterprise_linux_ai:3.4::el9" ], "defaultStatus": "affected", "packageName": "rhelai3/bootc-gcp-cuda-rhel9", "product": "Red Hat Enterprise Linux AI 3.4", "vendor": "Red Hat", "versions": [ { "lessThan": "*", "status": "unaffected", "version": "1787253774", "versionType": "rpm" } ] }, { "collectionURL": "https://catalog.redhat.com/software/containers/", "cpes": [ "cpe:/a:redhat:enterprise_linux_ai:3.4::el9" ], "defaultStatus": "affected", "packageName": "rhelai3/bootc-rocm-rhel9", "product": "Red Hat Enterprise Linux AI 3.4", "vendor": "Red Hat", "versions": [ { "lessThan": "*", "status": "unaffected", "version": "1787244006", "versionType": "rpm" } ] }, { "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "cpes": [ "cpe:/a:redhat:ai_inference_server:3" ], "defaultStatus": "unaffected", "packageName": "rhaiis/vllm-neuron-rhel9", "product": "Red Hat AI Inference Server", "vendor": "Red Hat" }, { "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "cpes": [ "cpe:/a:redhat:ai_inference_server:3" ], "defaultStatus": "unaffected", "packageName": "rhaiis/vllm-tpu-rhel9", "product": "Red Hat AI Inference Server", "vendor": "Red Hat" }, { "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "cpes": [ "cpe:/a:redhat:ai_inference_server:3" ], "defaultStatus": "affected", "packageName": "rhaii/vllm-gaudi-rhel9", "product": "Red Hat AI Inference Server", "vendor": "Red Hat" }, { "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "cpes": [ "cpe:/a:redhat:ai_inference_server:3" ], "defaultStatus": "unaffected", "packageName": "rhaii/vllm-neuron-rhel9", "product": "Red Hat AI Inference Server", "vendor": "Red Hat" }, { "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "cpes": [ "cpe:/a:redhat:ai_inference_server:3" ], "defaultStatus": "unaffected", "packageName": "rhaii/vllm-tpu-rhel9", "product": "Red Hat AI Inference Server", "vendor": "Red Hat" }, { "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "cpes": [ "cpe:/a:redhat:openshift_ai" ], "defaultStatus": "unaffected", "packageName": "rhoai/odh-kserve-agent-rhel9", "product": "Red Hat OpenShift AI (RHOAI)", "vendor": "Red Hat" }, { "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "cpes": [ "cpe:/a:redhat:openshift_ai" ], "defaultStatus": "unaffected", "packageName": "rhoai/odh-kserve-controller-rhel9", "product": "Red Hat OpenShift AI (RHOAI)", "vendor": "Red Hat" }, { "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "cpes": [ "cpe:/a:redhat:openshift_ai" ], "defaultStatus": "unaffected", "packageName": "rhoai/odh-kserve-router-rhel9", "product": "Red Hat OpenShift AI (RHOAI)", "vendor": "Red Hat" }, { "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "cpes": [ "cpe:/a:redhat:openshift_ai" ], "defaultStatus": "unaffected", "packageName": "rhoai/odh-kserve-storage-initializer-rhel9", "product": "Red Hat OpenShift AI (RHOAI)", "vendor": "Red Hat" }, { "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "cpes": [ "cpe:/a:redhat:openshift_ai" ], "defaultStatus": "unaffected", "packageName": "rhoai/odh-llm-d-kv-cache-rhel9", "product": "Red Hat OpenShift AI (RHOAI)", "vendor": "Red Hat" }, { "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "cpes": [ "cpe:/a:redhat:openshift_ai" ], "defaultStatus": "affected", "packageName": "rhoai/odh-vllm-gaudi-rhel9", "product": "Red Hat OpenShift AI (RHOAI)", "vendor": "Red Hat" } ], "datePublic": "2026-06-22T22:18:14.494Z", "descriptions": [ { "lang": "en", "value": "A flaw was found in vLLM, an inference and serving engine for large language models (LLMs). An unauthenticated attacker can exploit an assert-based security check during activation function loading. By publishing a malicious HuggingFace model, an attacker can achieve arbitrary code execution on the server when vLLM runs in Python optimized mode." } ], "metrics": [ { "other": { "content": { "namespace": "https://access.redhat.com/security/updates/classification/", "value": "Important" }, "type": "Red Hat severity rating" } }, { "cvssV3_1": { "attackComplexity": "HIGH", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 7.5, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "REQUIRED", "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H", "version": "3.1" }, "format": "CVSS" } ], "problemTypes": [ { "descriptions": [ { "cweId": "CWE-617", "description": "Reachable Assertion", "lang": "en", "type": "CWE" } ] } ], "references": [ { "tags": [ "vdb-entry", "x_refsource_REDHAT" ], "url": "https://access.redhat.com/security/cve/CVE-2026-41523" }, { "name": "RHBZ#2491582", "tags": [ "issue-tracking", "x_refsource_REDHAT" ], "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2491582" }, { "tags": [ "x_sadp-csaf-vex" ], "url": "https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-41523.json" }, { "tags": [ "vendor-advisory", "x_refsource_REDHAT" ], "url": "https://access.redhat.com/errata/RHSA-2026:61627" }, { "tags": [ "vendor-advisory", "x_refsource_REDHAT" ], "url": "https://access.redhat.com/errata/RHSA-2026:36005" }, { "tags": [ "vendor-advisory", "x_refsource_REDHAT" ], "url": "https://access.redhat.com/errata/RHSA-2026:61629" }, { "tags": [ "vendor-advisory", "x_refsource_REDHAT" ], "url": "https://access.redhat.com/errata/RHSA-2026:36006" }, { "tags": [ "vendor-advisory", "x_refsource_REDHAT" ], "url": "https://access.redhat.com/errata/RHSA-2026:59138" }, { "tags": [ "vendor-advisory", "x_refsource_REDHAT" ], "url": "https://access.redhat.com/errata/RHSA-2026:59139" }, { "tags": [ "vendor-advisory", "x_refsource_REDHAT" ], "url": "https://access.redhat.com/errata/RHSA-2026:57380" }, { "tags": [ "vendor-advisory", "x_refsource_REDHAT" ], "url": "https://access.redhat.com/errata/RHSA-2026:57389" }, { "tags": [ "vendor-advisory", "x_refsource_REDHAT" ], "url": "https://access.redhat.com/errata/RHSA-2026:57390" }, { "tags": [ "vendor-advisory", "x_refsource_REDHAT" ], "url": "https://access.redhat.com/errata/RHSA-2026:57387" }, { "tags": [ "vendor-advisory", "x_refsource_REDHAT" ], "url": "https://access.redhat.com/errata/RHSA-2026:62336" }, { "tags": [ "vendor-advisory", "x_refsource_REDHAT" ], "url": "https://access.redhat.com/errata/RHSA-2026:62335" }, { "tags": [ "vendor-advisory", "x_refsource_REDHAT" ], "url": "https://access.redhat.com/errata/RHSA-2026:59151" }, { "tags": [ "vendor-advisory", "x_refsource_REDHAT" ], "url": "https://access.redhat.com/errata/RHSA-2026:59144" } ], "solutions": [ { "lang": "en", "value": "RHSA-2026:61627: Red Hat AI Inference Server 3.2" }, { "lang": "en", "value": "RHSA-2026:36005: Red Hat AI Inference Server 3.2" }, { "lang": "en", "value": "RHSA-2026:61629: Red Hat AI Inference Server 3.2" }, { "lang": "en", "value": "RHSA-2026:36006: Red Hat AI Inference Server 3.2" }, { "lang": "en", "value": "RHSA-2026:59138: Red Hat AI Inference Server 3.3" }, { "lang": "en", "value": "RHSA-2026:59139: Red Hat AI Inference Server 3.3" }, { "lang": "en", "value": "RHSA-2026:57380: Red Hat AI Inference Server 3.4" }, { "lang": "en", "value": "RHSA-2026:57389: Red Hat AI Inference Server 3.4" }, { "lang": "en", "value": "RHSA-2026:57390: Red Hat AI Inference Server 3.4" }, { "lang": "en", "value": "RHSA-2026:57387: Red Hat AI Inference Server 3.4" }, { "lang": "en", "value": "RHSA-2026:62336: Red Hat Enterprise Linux AI 3.3" }, { "lang": "en", "value": "RHSA-2026:62335: Red Hat Enterprise Linux AI 3.3" }, { "lang": "en", "value": "RHSA-2026:59151: Red Hat Enterprise Linux AI 3.4" }, { "lang": "en", "value": "RHSA-2026:59144: Red Hat Enterprise Linux AI 3.4" } ], "timeline": [ { "lang": "en", "time": "2026-06-22T23:01:00.799Z", "value": "Reported to Red Hat." }, { "lang": "en", "time": "2026-06-22T22:18:14.494Z", "value": "Made public." } ], "title": "vllm: vLLM: Arbitrary code execution via malicious HuggingFace model", "workarounds": [ { "lang": "en", "value": "Avoid running vLLM with python -O or PYTHONOPTIMIZE=1 until updated packages are available. Only load models from trusted sources. Restrict who can deploy or update models on inference endpoints. Apply network access controls and authentication in front of vLLM APIs." } ], "x_adpType": "supplier", "x_generator": { "engine": "sadp-cli 1.0.0" }, "providerMetadata": { "orgId": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c", "shortName": "redhat-SADP", "dateUpdated": "2026-09-04T12:04:58.778Z" } } ] } }