CVE-2026-90878

MediumCVSS 4.3/10Last modified Sep 15, 2026

Description

A vulnerability was determined in vllm-project vLLM up to 0.27.1. This affects an unknown part of the file /v1/chat/completions of the component Jinja Template Rendering. This manipulation of the argument chat_template causes resource consumption. The attack can be initiated remotely. The exploit has been publicly disclosed and may be utilized. The pull request to fix this issue awaits acceptance.

Metrics

CVSS 3.1 4.3/10CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L

Weakness enumeration

CWE-400 CWE-404

Affected software

No affected versions have been published.

Timeline

Published: Sep 15, 2026
Last modified: Sep 15, 2026
NVD status: Deferred

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