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CVE-2026-9540

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

Published: May 26, 2026Updated: May 26, 2026 Sources: CVE List NVD
NVD MITRE
5.3CVSS
MEDIUM

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.

EPSS Score
N/A
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
No Fix Available

CVSS Vector Breakdown

AV:NAC:LPR:NUI:NS:UC:NI:NA:L
Exploitability
AV:NAttack Vector
Network
AC:LAttack Complexity
Low
PR:NPrivileges Required
None
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:NConfidentiality
None
I:NIntegrity
None
A:LAvailability
Low

Weaknesses

CWE-404

Affected Products

vllm
vllm-project

Exploitability

No known exploits, KEV entries, or remediation guidance available for this vulnerability yet.

References

https://vuldb.com/vuln/365601
vuldb.com
https://vuldb.com/vuln/365601/cti
vuldb.com
https://vuldb.com/submit/814645
vuldb.com
and 4 more references View all →

Timeline

Published
May 26, 2026
Last Updated
May 26, 2026

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