Description
vLLM through 0.29.0 contains a resource exhaustion vulnerability in MooncakeConnector where rejected prefill requests create ownerless transfer placeholders that are never reclaimed. Attackers can send rejected requests to exhaust sender task pools, causing valid requests to be delayed by up to 480 seconds while health checks continue returning success.
Published: 2026-09-21
Score: 6.9 Medium
EPSS: n/a
KEV: No
AI Analysis

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Remediation

No vendor fix or workaround currently provided.

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Tracking

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Advisories

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History

Mon, 21 Sep 2026 22:15:00 +0000

Type Values Removed Values Added
Description vLLM through 0.29.0 contains a resource exhaustion vulnerability in MooncakeConnector where rejected prefill requests create ownerless transfer placeholders that are never reclaimed. Attackers can send rejected requests to exhaust sender task pools, causing valid requests to be delayed by up to 480 seconds while health checks continue returning success.
Title vLLM through 0.29.0 Resource Exhaustion via Ownerless Mooncake Transfer Placeholders
First Time appeared Vllm
Vllm vllm
Weaknesses CWE-772
CPEs cpe:2.3:a:vllm:vllm:*:*:*:*:*:*:*:*
Vendors & Products Vllm
Vllm vllm
References
Metrics cvssV3_1

{'score': 5.3, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L'}

cvssV4_0

{'score': 6.9, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N'}


cve-icon MITRE

Status: PUBLISHED

Assigner: VulnCheck

Published:

Updated: 2026-09-21T22:04:14.206Z

Reserved: 2026-09-21T21:42:27.917Z

Link: CVE-2026-94625

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Received

Published: 2026-09-21T22:17:01.433

Modified: 2026-09-21T22:17:01.433

Link: CVE-2026-94625

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

No data.

Weaknesses
  • CWE-772

    Missing Release of Resource after Effective Lifetime