CVE-2026-22778: exploitation status and patch state

CVE-2026-22778 · CVSS 9.8 CRITICAL · EPSS 11%

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.

Is CVE-2026-22778 exploited?

• Not in the CISA KEV catalog.
• EPSS puts exploitation in the next 30 days at 11%.
• Public exploit code: none found in monitored sources.
• Public detection rules exist.

Which products and versions are affected?

No affected package list recorded here yet.

Is there a patch?

No patch identifier recorded here yet.

What PlainSec published about CVE-2026-22778

• Rapid7 ships a vLLM leak scanner (2026-10-09)

Primary sources

• NVD record
• Metasploit: auxiliary/scanner/http/vllm_multimodal_info_leak
• Nuclei template

What this record does not say

• No affected package data.
• No patch identifier.

KEV and EPSS are re-checked daily. Record last updated 2026-10-09.