vLLM is an inference and serving engine for large language models (LLMs). From 0.8.3 to before 0.14.1, when an invalid image is sent to vLLM's multimodal endpoint, PIL throws an error. vLLM returns this error to the client, leaking a heap address. With this leak, we reduce ASLR from 4 billion guesses to ~8 guesses. This vulnerability can be chained a heap overflow with JPEG2000 decoder in OpenCV/FFmpeg to achieve remote code execution. This vulnerability is fixed in 0.14.1.
History

Wed, 04 Feb 2026 12:30:00 +0000

Type Values Removed Values Added
First Time appeared Vllm-project
Vllm-project vllm
Vendors & Products Vllm-project
Vllm-project vllm

Wed, 04 Feb 2026 00:15:00 +0000

Type Values Removed Values Added
Weaknesses CWE-209
References
Metrics threat_severity

None

threat_severity

Critical


Tue, 03 Feb 2026 16:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}


Mon, 02 Feb 2026 23:15:00 +0000

Type Values Removed Values Added
Description vLLM is an inference and serving engine for large language models (LLMs). From 0.8.3 to before 0.14.1, when an invalid image is sent to vLLM's multimodal endpoint, PIL throws an error. vLLM returns this error to the client, leaking a heap address. With this leak, we reduce ASLR from 4 billion guesses to ~8 guesses. This vulnerability can be chained a heap overflow with JPEG2000 decoder in OpenCV/FFmpeg to achieve remote code execution. This vulnerability is fixed in 0.14.1.
Title vLLM leaks a heap address when PIL throws an error
Weaknesses CWE-532
References
Metrics cvssV3_1

{'score': 9.8, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H'}


cve-icon MITRE

Status: PUBLISHED

Assigner: GitHub_M

Published:

Updated: 2026-02-03T15:42:57.155Z

Reserved: 2026-01-09T18:27:19.388Z

Link: CVE-2026-22778

cve-icon Vulnrichment

Updated: 2026-02-03T15:42:51.507Z

cve-icon NVD

Status : Awaiting Analysis

Published: 2026-02-02T23:16:06.700

Modified: 2026-02-03T16:44:03.343

Link: CVE-2026-22778

cve-icon Redhat

Severity : Critical

Publid Date: 2026-02-02T21:09:53Z

Links: CVE-2026-22778 - Bugzilla