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CVE-2026-94626 vLLM through 0.29.0 Memory Exhaustion via Unvalidated NIXL tp_size

🗓️ 21 Sep 2026 22:04:15Reported by VulnCheckType 
cvelist
 cvelist
🔗 www.cve.org👁 11 Views

vLLM through 0.29.0 fails to validate the tp_size parameter in kv_transfer_params on OpenAI-compatible completion endpoints, allowing attackers to allocate unbounded memory. Attackers can supply arbitrary tp_size values in prefill/decode disaggreg...

Related
Affected
Refs
ReporterTitlePublishedViews
Family
circl
Circl
CVE-2026-94626
21 Sep 202623:03
circl
cve
CVE
CVE-2026-94626
21 Sep 202622:04
cve
euvd
EUVD
EUVD-2026-84220
22 Sep 202600:30
euvd
nvd
NVD
CVE-2026-94626
21 Sep 202622:17
nvd
[
  {
    "vendor": "vllm-project",
    "product": "vllm",
    "defaultStatus": "unaffected",
    "packageURL": "pkg:pypi/vllm",
    "versions": [
      {
        "version": "0",
        "lessThanOrEqual": "0.29.0",
        "status": "affected",
        "versionType": "semver"
      }
    ]
  }
]

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21 Sep 2026 22:04Current
CVSS 3.17.5
CVSS 48.7
11