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Security advisory

Type: advisorySources: OSVCVE: CVE-2026-37237

vLLM up to and including 0.17.0 allows remote attackers to cause a Denial of Service via memory exhaustion. The AsyncMediaIO.fetch_audio and AsyncMediaIO.fetch_image functions in multimodal/inputs.py fetch user-supplied media URLs using aiohttp and call r.read() without enforcing a maximum response size, allowing an attacker to exhaust server memory by providing a URL to an arbitrarily large file.

Products
Not specified
Affected versions
Not specified
Fixed versions
Not specified
CVEs
CVE-2026-37237
Confirmed fixed CVEs
Not specified
Updated in this feed
7 Nov 2026, 16:11 UTC · Revision 1

Source evidence

CVE-2026-37237

core-osv · Original source

Published 28 Aug 2026, 00:00 UTC

vLLM up to and including 0.17.0 allows remote attackers to cause a Denial of Service via memory exhaustion. The AsyncMediaIO.fetch_audio and AsyncMediaIO.fetch_image functions in multimodal/inputs.py fetch user-supplied media URLs using aiohttp and call r.read() without enforcing a maximum response size, allowing an attacker to exhaust server memory by providing a URL to an arbitrarily large file.

osv:CVE-2026-37237
Complete source record
{
  "id": "c909007fb56d19b1d21d791121bc1095656d5042769cc51aa3972414fdaa1c70",
  "url": "https://osv.dev/vulnerability/CVE-2026-37237",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "CVE-2026-37237",
    "summary": "vLLM up to and including 0.17.0 allows remote attackers to cause a Denial of Service via memory exhaustion. The AsyncMediaIO.fetch_audio and AsyncMediaIO.fetch_image functions in multimodal/inputs.py fetch user-supplied media URLs using aiohttp and call r.read() without enforcing a maximum response size, allowing an attacker to exhaust server memory by providing a URL to an arbitrarily large file.",
    "evidence": "osv:CVE-2026-37237",
    "products": [],
    "severity": "high",
    "structured": {
      "id": "CVE-2026-37237",
      "aliases": [
        "CVE-2026-37237"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/vllm-project/vllm",
              "type": "GIT",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "last_affected": "b31e9326a7d9394aab8c767f8ebe225c65594b60"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "range": [
                      {
                        "introduced": "0"
                      },
                      {
                        "last_affected": "0.17.0"
                      }
                    ],
                    "source": "DESCRIPTION"
                  },
                  {
                    "cpe": "cpe:2.3:a:vllm:vllm:*:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "0"
                      },
                      {
                        "last_affected": "0.17.0"
                      }
                    ],
                    "source": "CPE_RANGE"
                  }
                ]
              }
            }
          ],
          "versions": [
            "v0.17.0rc1",
            "v0.17.0",
            "v0.17.0rc0",
            "v0.16.0rc1",
            "v0.15.2rc0",
            "v0.16.0rc0",
            "v0.15.0rc1",
            "v0.14.0rc1",
            "v0.14.0rc0",
            "v0.13.0rc1",
            "v0.11.1",
            "v0.11.1rc6",
            "v0.11.1rc5",
            "v0.11.1rc4",
            "v0.11.1rc3",
            "v0.11.1rc2",
            "v0.11.1rc1",
            "v0.11.1rc0",
            "v0.11.0rc1",
            "v0.10.2rc2",
            "v0.10.2rc1",
            "v0.10.1rc1",
            "v0.10.0rc2",
            "v0.10.0",
            "v0.10.0rc1",
            "v0.9.2rc1",
            "v0.9.1rc2",
            "v0.9.1",
            "v0.9.1rc1",
            "v0.9.0",
            "v0.8.4",
            "v0.8.3rc1",
            "v0.8.2",
            "v0.8.1",
            "v0.8.0rc2",
            "v0.8.0rc1",
            "v0.7.3",
            "v0.7.2",
            "v0.7.1",
            "v0.7.0",
            "v0.6.6.post1",
            "v0.6.6",
            "v0.6.5",
            "v0.6.4.post1",
            "v0.6.4",
            "v0.6.3.post1",
            "v0.6.3",
            "v0.6.2",
            "v0.6.1.post2",
            "v0.6.1.post1",
            "v0.6.1",
            "v0.6.0",
            "v0.5.5",
            "v0.5.4",
            "v0.5.3.post1",
            "v0.5.3",
            "v0.5.2",
            "v0.5.1",
            "v0.5.0.post1",
            "v0.5.0",
            "v0.4.3",
            "v0.4.2",
            "v0.4.1",
            "v0.4.0.post1",
            "v0.4.0",
            "v0.3.3",
            "v0.3.2",
            "v0.3.1",
            "v0.3.0",
            "v0.2.7",
            "v0.2.6",
            "v0.2.5",
            "v0.2.4",
            "v0.2.3",
            "v0.2.2",
            "v0.2.1",
            "v0.2.0",
            "v0.1.7",
            "v0.1.6",
            "v0.1.5",
            "v0.1.4",
            "v0.1.3",
            "v0.1.2",
            "v0.1.1",
            "v0.1.0",
            "submission"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-37237.json"
          }
        }
      ],
      "modified": "2026-10-28T02:30:51.389773499Z",
      "provider": "osv",
      "references": [
        "https://github.com/vllm-project/vllm/blob/main/vllm/multimodal/inputs.py",
        "https://s00me00ne.com/cve/cve-2026-37237/",
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/37xxx/CVE-2026-37237.json",
        "https://nvd.nist.gov/vuln/detail/CVE-2026-37237",
        "https://github.com/vllm-project/vllm/pull/36506"
      ],
      "provider_metadata": {
        "cna_assigner": "mitre",
        "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/37xxx/CVE-2026-37237.json"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2026-37237",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 519829,
  "published_at": "2026-08-28T00:00:00+00:00"
}