CVE-2026-22778
Critical · CVSS 9.8vllm — Information Exposure via Error Messages / Heap Address Leak (CWE-532, CWE-209) enabling ASLR bypass and potential RCE chain
- CVSS
- 9.8
- nvd
- EPSS
- 3.68%
- 88th pct
- KEV
- No
- Class
- oss containerizable
- CWE-532, CWE-209
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.
Search profile — drives PoC discovery
Symbols multimodalmultimodal endpointPILPIL errorheap addressASLRJPEG2000OpenCVFFmpegheap overflowimageinvalid imagevllm error responseexception message leak
Keywords CVE-2026-22778GHSA-4r2x-xpjr-7cvvvllmvllm multimodal heap leakvllm ASLR bypassvllm PIL error leakvllm invalid image exploitvllm heap address disclosurevllm RCE chainvllm JPEG2000 heap overflowvllm information disclosure PoCvllm 0.8.3 0.14.1 vulnerability
Versions: >=0.8.3, <0.14.1
Affected packages
| PyPI | vllm | 0.8.3 → 0.14.1 |
References
- https://github.com/vllm-project/vllm/pull/31987
- https://github.com/vllm-project/vllm/pull/32319
- https://github.com/vllm-project/vllm/releases/tag/v0.14.1
- https://github.com/vllm-project/vllm/security/advisories/GHSA-4r2x-xpjr-7cvv
- https://access.redhat.com/errata/RHSA-2026:19712
- https://access.redhat.com/errata/RHSA-2026:30087
- https://access.redhat.com/errata/RHSA-2026:30088
- https://access.redhat.com/errata/RHSA-2026:30089
- https://access.redhat.com/errata/RHSA-2026:3461
- https://access.redhat.com/errata/RHSA-2026:3462
- https://access.redhat.com/errata/RHSA-2026:3713
- https://access.redhat.com/errata/RHSA-2026:3782
Status: enriched · ingested 2026-06-27T06:00:38.000Z · profiled 2026-06-30T18:30:14.000Z