Bug 2353624 (CVE-2024-11040)

Summary: CVE-2024-11040 vllm: Denial of Service in vllm-project/vllm
Product: [Other] Security Response Reporter: OSIDB Bzimport <bzimport>
Component: vulnerabilityAssignee: Product Security DevOps Team <prodsec-dev>
Status: NEW --- QA Contact:
Severity: unspecified Docs Contact:
Priority: unspecified    
Version: unspecifiedCC: bbrownin, jeder
Target Milestone: ---Keywords: Security
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Hardware: All   
OS: Linux   
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A flaw was found in vLLM. This vulnerability allows a denial of service via the POST endpoints. Enabling use_beam_search with a high best_of value in POST /v1/completions causes the HTTP connection to time out, blocking new completion requests. Supplying invalid inputs to POST /v1/embeddings results in a background loop failure, causing all further requests to return a 500 HTTP error until the vLLM is restarted.
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oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
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Description OSIDB Bzimport 2025-03-20 11:04:43 UTC
vllm-project vllm version 0.5.2.2 is vulnerable to Denial of Service attacks. The issue occurs in the 'POST /v1/completions' and 'POST /v1/embeddings' endpoints. For 'POST /v1/completions', enabling 'use_beam_search' and setting 'best_of' to a high value causes the HTTP connection to time out, with vllm ceasing effective work and the request remaining in a 'pending' state, blocking new completion requests. For 'POST /v1/embeddings', supplying invalid inputs to the JSON object causes an issue in the background loop, resulting in all further completion requests returning a 500 HTTP error code ('Internal Server Error') until vllm is restarted.