CVE-2026-54233: vllm-project vllm
CVSS: 6.5v3.1MediumAnalyzed
AliasesGHSA-6pr9-rp53-2pmcPYSEC-2026-3404CGA-3xjv-vc9c-76rvCGA-4rqf-9j7x-p3pfCGA-4x6j-r74p-w79pCGA-5q9g-rg5g-5x79CGA-5w2m-9hrw-7vx7CGA-72f6-j4cg-mqr2CGA-7v28-hjj6-r63vCGA-94m6-g223-rhjcCGA-9v5q-j2mr-7mmcCGA-c6gm-gjm7-jrwwCGA-f6xp-w253-7qf5CGA-jqmj-7247-q32jCGA-p33w-pm2j-792xCGA-qv8v-pwfc-hw3hCGA-vjjf-mfj3-w24jCGA-w33h-jr98-cvfw
Published 22-06-2026Last modified 23-06-2026
Vulnerability summary
CVE-2026-54233 is a medium (CVSS 6.5) vulnerability in vllm-project vllm. EPSS estimates a 0.42% chance of exploitation in the next 30 days, higher than 35.3% of scored vulnerabilities.
CVSS score
6.5/10
010
Medium · v3.1 (CVE.org)EPSS score
0.42%
0%100%
Low · 0.00 pp in 30 daysKEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded
Advisory lineage
Upstream 0 · Downstream 0 · Related 1Timeline
- 22-06-2026PublishedVulnerability first disclosed.
- 23-06-2026Last modifiedVulnerability information updated.
Description
vLLM is an inference and serving engine for large language models (LLMs). Prior to 0.23.1rc0, vLLM's /v1/audio/transcriptions endpoint limits compressed upload size but not decoded PCM output. A 25MB OPUS file expands to ~14.9GB of float32 PCM at decode time. This vulnerability is fixed in 0.23.1rc0.
CVSS metrics
4 scores · 4 sources · 1 versionMedium 6.5Preferred score · CVE.org (CNA)
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:HSourcesAll 4 agree
- OSV · PypiEcosystem advisory · calculated6.5MediumCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
- OSV · ChainguardEcosystem advisory · calculated6.5MediumCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
- NVDNIST6.5MediumCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
EPSS trend
Probability
0.42%
Chance of exploitation in the next 30 days
Percentile
35%
Versus all other CVEs
30-day change
0.00 pp
From 0.42% on 21-09-2026
21-09-202621-10-2026
EPSS score0.42%
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Chainguard16 products
- lmcache-cuda-12.8All versions (No fix recorded)
- nemo-rl-cuda-13.0-vllmAll versions (No fix recorded)
- py3.10-vllm-cuda-12.4All versions (No fix recorded)
- py3.10-vllm-cuda-12.9All versions (No fix recorded)
- py3.10-vllm-cuda-13.0All versions (No fix recorded)
PyPI1 product
- vllm< 0.24.0 | ≤ 0.23.0
Vllm1 product
- vllm< 0.23.1
Vllm-project1 product
- vllm< 0.23.1rc0
4 vendors · 19 products
References
10 links- github.com/vllm-project/vllm/security/advisories/GHSA-6pr9-rp53-2pmcX Refsource CONFIRMWEBAdvisoryThird Party Advisory
- github.com/vllm-project/vllmPACKAGE