CVE-2026-109311

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{"bugzilla": {"description": "vllm: vLLM: Denial of Service via crafted IAMF audio file upload", "id": "2549768", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2549768"}, "csaw": false, "cvss3": {"cvss3_base_score": "6.5", "cvss3_scoring_vector": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "status": "draft"}, "cwe": "CWE-787", "details": ["vLLM before 0.29.0 passes uploaded audio to the PyAV/FFmpeg av.open() fallback with only a file-size check, exposing FFmpeg's IAMF parser heap overflow. Authenticated remote attackers can repeatedly upload malformed IAMF containers to /v1/audio/transcriptions, corrupting the heap and crashing the API process.", "A flaw was found in vLLM. This vulnerability allows an authenticated remote attacker to cause a Denial of Service (DoS) by uploading a crafted Immersive Audio Model and Formats (IAMF) audio file to the transcription endpoint. Because input data is passed to the underlying media processing library without sufficient validation, processing the malformed file triggers a heap buffer overflow that crashes the API service."], "name": "CVE-2026-109311", "package_state": [{"cpe": "cpe:/a:redhat:ai_inference_server:3", "fix_state": "Fix deferred", "package_name": "rhaiis/vllm-cpu-rhel9", "product_name": "Red Hat AI Inference Server"}, {"cpe": "cpe:/a:redhat:ai_inference_server:3", "fix_state": "Fix deferred", "package_name": "rhaiis/vllm-cuda-rhel9", "product_name": "Red Hat AI Inference Server"}, {"cpe": "cpe:/a:redhat:ai_inference_server:3", "fix_state": "Fix deferred", "package_name": "rhaiis/vllm-neuron-rhel9", "product_name": "Red Hat AI Inference Server"}, {"cpe": "cpe:/a:redhat:ai_inference_server:3", "fix_state": "Fix deferred", "package_name": "rhaiis/vllm-rocm-rhel9", "product_name": "Red Hat AI Inference Server"}, {"cpe": "cpe:/a:redhat:ai_inference_server:3", "fix_state": "Fix deferred", "package_name": 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["https://www.cve.org/CVERecord?id=CVE-2026-109311\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-109311\nhttps://github.com/vllm-project/vllm/security/advisories/GHSA-m52c-39rh-f3gp\nhttps://www.vulncheck.com/advisories/vllm-before-0.29.0-heap-overflow-dos-via-iamf-audio-transcription-upload"], "threat_severity": "Moderate"}

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