CVE-2026-94625
vLLM through 0.29.0 Resource Exhaustion via Ownerless Mooncake Transfer Placeholders
CVSS 4.0 6.9 MEDIUMCVSS 3.1 5.3 MEDIUMCheck source for fixed versionsKEV status unknown
cve-program · CVE-2026-94625
PublishedvLLM 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.
Read the publisher's advisoryAffected versions, risk and source history
Related advisories and sources
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CVE-2026-94625 · CVE overview and exploitation status
cve-program · CVE-2026-94625
- https://github.com/vllm-project/vllm/pull/51236
- https://github.com/vllm-project/vllm/blob/v0.29.0/vllm/distributed/kv_transfer/kv_connector/v1/mooncake/mooncake_connector.py#L1234-L1242
- https://github.com/vllm-project/vllm
- https://www.vulncheck.com/advisories/vllm-through-0.29.0-resource-exhaustion-via-ownerless-mooncake-transfer-placeholders
Related changes
Linked by CVE identifierNo related changes are available here.