CVE-2026-109311 (GCVE-0-2026-109311)

Vulnerability from cvelistv5 – Published: 2026-10-12 16:05 – Updated: 2026-10-12 16:05
VLAI
Title
vLLM before 0.29.0 Heap Overflow DoS via IAMF Audio Transcription Upload
Summary
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.
Severity
7.1 (High)
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
6.5 (Medium)
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
CWE
  • CWE-20 - Improper Input Validation
Assigner
VulnCheck CNA under the mitre root
CNA scorecard B 84/100 over 6182 records in the last 180 days details
References
Impacted products
Vendor Product Version CPE status
vllm-project vllm Affected: 0 , < 0.29.0 (semver)
Unaffected: 0.29.0 (semver)
    cpe:2.3:a:vllm:vllm:*:*:*:*:*:*:*:*
Create a notification for this product.
Date Public
2026-09-28 00:00
Credits
KernelClint dhalf jperezdealgaba
Show details on NVD website
To clipboard 

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        }
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        "shortName": "VulnCheck"
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          "name": "GitHub Security Advisory (GHSA-m52c-39rh-f3gp)",
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          "url": "https://github.com/vllm-project/vllm/security/advisories/GHSA-m52c-39rh-f3gp"
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    "cveId": "CVE-2026-109311",
    "datePublished": "2026-10-12T16:05:06.956Z",
    "dateReserved": "2026-10-12T14:14:27.021Z",
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          }
        ],
        "id": "CVE-2026-109311",
        "lastModified": "2026-10-12T17:17:25.730",
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}



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