CVE-2026-55514

vLLM is a library for LLM inference and serving. From 0.12.0 to before 0.24.0, sending a pure prompt embeds payload in a /v1/completions request with a model using M-RoPE causes EngineCore to fail an assertion and fatally crash, shutting down the entire server application. Any remote user who is authorized to make a /v1/completions request can make such a request and induce a crash. This issue is fixed in version 0.24.0.

CVSS v3 6.5 MEDIUM

6.5^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 2.8 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://github.com/vllm-project/vllm/commit/470229c37efaf69c86e8bc97482b0b1ff7551c65	Patch
https://github.com/vllm-project/vllm/pull/45252	Issue Tracking Patch
https://github.com/vllm-project/vllm/releases/tag/v0.24.0	Release Notes
https://github.com/vllm-project/vllm/security/advisories/GHSA-33cg-gxv8-3p8g	Vendor Advisory

Configurations

Configuration 1 (hide)

cpe:2.3:a:vllm:vllm:*:*:*:*:*:*:*:*

History

25 Oct 2026, 20:10

Type	Values Removed	Values Added
Summary		(es) vLLM es una biblioteca para inferencia y servicio de LLM. Desde la versión 0.12.0 hasta antes de la 0.24.0, enviar una carga útil de prompt puro incrustada en una solicitud /v1/completions con un modelo que utiliza M-RoPE hace que EngineCore falle una aserción y se bloquee fatalmente, apagando toda la aplicación del servidor. Cualquier usuario remoto que esté autorizado para realizar una solicitud /v1/completions puede realizar dicha solicitud e inducir un bloqueo. Este problema está solucionado en la versión 0.24.0.

Information

Published : 2026-07-06 21:16

Updated : 2026-10-25 20:10

NVD link : CVE-2026-55514

Mitre link : CVE-2026-55514

CVE.ORG link : CVE-2026-55514

JSON object : View

Products Affected

vllm

vllm

CWE

CWE-617

Reachable Assertion

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