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CVE-2026-9540

vllm-project vllm OpenAI-compatible Serving Path denial of service

CVSS 6.9 MEDIUMEPSS 0.4%CWE-404
A vulnerability was identified in vllm-project vllm 0.19.0. This issue affects some unknown processing of the component OpenAI-compatible Serving Path. Such manipulation leads to denial of service. It is possible to launch the attack remotely. The exploit is publicly available and might be used. The pull request to fix this issue awaits acceptance.
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/E:P
Affected products
vllm-project · vllm
public PoCs found — 1
cve_referencegithub.com/vllm-project/vllm/issues/37343unverified
⚠ Public resources, to assess the exposure of systems you control or are authorized to test. Test only with authorization.

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References
https://github.com/vllm-project/vllm/https://github.com/vllm-project/vllm/issues/37343https://github.com/vllm-project/vllm/pull/37594https://ingero.io/debugging-vllm-latency-minimax-ollama-mcp/https://vuldb.com/submit/814645https://vuldb.com/vuln/365601https://vuldb.com/vuln/365601/cti