---
id: CVE-2026-105922
title: A security flaw has been discovered in vllm-project vLLM up to 0.31.0
summary: >-
  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 re…
severity: medium
cvss: 4.3
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L'
cwe:
  - CWE-404
vendor: vllm-project
product: vLLM
affected:
  - vLLM 0.1
  - vLLM 0.2
  - vLLM 0.3
  - vLLM 0.4
  - vLLM 0.5
  - vLLM 0.6
  - vLLM 0.7
  - vLLM 0.8
  - vLLM 0.9
  - vLLM 0.10
  - vLLM 0.11
  - vLLM 0.12
  - vLLM 0.13
  - vLLM 0.14
  - vLLM 0.15
  - vLLM 0.16
  - vLLM 0.17
  - vLLM 0.18
  - vLLM 0.19
  - vLLM 0.20
  - vLLM 0.21
  - vLLM 0.22
  - vLLM 0.23
  - vLLM 0.24
  - vLLM 0.25
  - vLLM 0.26
  - vLLM 0.27
  - vLLM 0.28
  - vLLM 0.29
  - vLLM 0.30
  - vLLM 0.31.0
published: '2026-10-06'
updated: '2026-10-06'
sourceUpdated: '2026-10-06T15:19:48.933'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-105922'
references:
  - url: >-
      https://gist.github.com/Yunzez/5c70a3bb328eaf6d646b9d31e879dc4a#file-repro_prompt_embeds_penalties_engine_crash-py
    label: cna@vuldb.com
  - url: 'https://github.com/vllm-project/vllm/'
    label: cna@vuldb.com
  - url: 'https://github.com/vllm-project/vllm/issues/57719'
    label: cna@vuldb.com
  - url: 'https://vuldb.com/cve/CVE-2026-105922'
    label: cna@vuldb.com
  - url: 'https://vuldb.com/submit/992707'
    label: cna@vuldb.com
  - url: 'https://vuldb.com/vuln/413896'
    label: cna@vuldb.com
  - url: 'https://vuldb.com/vuln/413896/cti'
    label: cna@vuldb.com
tags:
  - nvd
  - cve.org
ingestedAt: '2026-10-06T15:01:49.298Z'
---

## Overview

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.

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.