CVE-2026-114050 HIGH

CVE-2026-114050: vLLM before 0.31.0 Remote Engine Crash via Forged Multimodal UUID

Vendor Vllm-Project
Product vllm
Weakness CWE-345
Published October 21, 2026
Last update October 21, 2026

CVSS base score

7.1/10
Attack vector Network
Attack complexity Low
Privileges required Low
User interaction None
Confidentiality —
Integrity —

CVSS vector

CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N

What the vulnerability does

01Description

vLLM before 0.31.0 uses a client-supplied multimodal uuid verbatim as cache identity with no consistency check on cache hits, allowing engine crashes. Unauthenticated attackers can desynchronize the P0/P1 processor caches to trigger a fatal token-placeholder mismatch, killing the entire serving instance until restarted.

Key dates

02Disclosure timeline

October 21, 2026 CVE published
October 21, 2026 Record updated

Related vulnerabilities

04Related CVE