SA-26-689 Medium

vLLM: A security flaw has been discovered in vllm-project vLLM up to 0.31.0

vLLM

Severity
Medium, CVSS 4.3
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L
Record
CVE-2026-105922
Affects
vLLM
Known exploited
Not listed in the CISA Known Exploited Vulnerabilities catalog
Published
Record first published by the source
October 6, 2026
Source last modified
October 9, 2026

Description

A security flaw has been discovered in vllm-project vLLM up to 0.31.0. This impacts the function get_token_bin_counts_and_mask of the file vllm/model_executor/layers/utils.py of the component Penalty Handler. Performing a manipulation results in denial of service. Remote exploitation of the attack is possible. The exploit has been released to the public and may be used for attacks. The project was informed of the problem early through an issue report but has not responded yet.

Description quoted from the NVD record.

Sources

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