Advisories

vLLM through 0.29.0 Memory Exhaustion via Rejected Requests

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severity
high
date
Affecting
  • vllm <= 0.29.0

CWE
  • CWE-401 Missing Release of Memory after Effective Lifetime
CVSS
8.7
CVSS V4 Vector
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
Credit
Jiapeng Li, Jiajia Liu
Description
vLLM through 0.29.0 fails to properly clean up decode-side metadata for rejected inference requests in prefill/decode disaggregated deployments. Remote attackers can submit requests with max_tokens=0 to exhaust decode-worker memory without bound until the worker restarts.

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