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Description

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.

PUBLISHED Reserved 2026-05-26 | Published 2026-05-26 | Updated 2026-05-26 | Assigner VulDB




MEDIUM: 6.9CVSS: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
MEDIUM: 5.3CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L/E:P/RL:X/RC:R
MEDIUM: 5.3CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L/E:P/RL:X/RC:R
5.0AV:N/AC:L/Au:N/C:N/I:N/A:P/E:POC/RL:ND/RC:UR

Problem types

Denial of Service

Product status

0.19.0
affected

Timeline

2026-05-26:Advisory disclosed
2026-05-26:VulDB entry created
2026-05-26:VulDB entry last update

Credits

Zyz3366 (VulDB User) reporter

VulDB CNA Team coordinator

References

vuldb.com/vuln/365601 (VDB-365601 | vllm-project vllm OpenAI-compatible Serving Path denial of service) vdb-entry

vuldb.com/vuln/365601/cti (VDB-365601 | CTI Indicators (IOB, IOC, TTP)) signature permissions-required

vuldb.com/submit/814645 (Submit #814645 | vllm-project vllm 0.19.0 Denial of Service) third-party-advisory

github.com/vllm-project/vllm/issues/37343 exploit issue-tracking

github.com/vllm-project/vllm/pull/37594 issue-tracking patch

ingero.io/debugging-vllm-latency-minimax-ollama-mcp/ related

github.com/vllm-project/vllm/ product

cve.org (CVE-2026-9540)

nvd.nist.gov (CVE-2026-9540)

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