Bug 2532579 (CVE-2026-90553)

Summary: CVE-2026-90553 vllm: vLLM: Remote Code Execution via LlavaOnevision2 processor ignoring trust_remote_code
Product: [Other] Security Response Reporter: OSIDB Bzimport <bzimport>
Component: vulnerabilityAssignee: Product Security DevOps Team <prodsec-dev>
Status: NEW --- QA Contact:
Severity: high Docs Contact:
Priority: high    
Version: unspecifiedCC: alinfoot, bbrownin, dtrifiro, weaton
Target Milestone: ---Keywords: Security
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Hardware: All   
OS: Linux   
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A flaw was found in vLLM. The LlavaOnevision2 processor loader incorrectly ignores the `trust_remote_code` parameter, which is designed to prevent the execution of untrusted code. This oversight allows an attacker to craft a malicious model containing arbitrary code. When such a model is loaded, the code executes with the vLLM process's authority, leading to remote code execution.
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Description OSIDB Bzimport 2026-09-12 12:22:29 UTC
vLLM before 0.28.0 contains a remote code execution vulnerability in the LlavaOnevision2 processor loader that ignores the trust_remote_code parameter when loading remote processor classes. Attackers can craft a malicious model with arbitrary code in processing_llava_onevision2.py that executes with vLLM process authority even when trust_remote_code is set to False.