Bug 2558032 (CVE-2026-114053)

Summary: CVE-2026-114053 vllm: vLLM 0.7.3 before 0.31.0 RCE via mm_processor_kwargs.code_revision
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, mwoodson, weaton
Target Milestone: ---Keywords: Security
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Hardware: All   
OS: Linux   
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A flaw was found in vLLM. This vulnerability allows an unauthenticated remote attacker to achieve arbitrary code execution in the server process. By submitting a crafted multimodal request specifying an attacker-controlled code revision, an attacker can cause the application to load and execute untrusted dynamic processor code when the server is configured to trust remote code.
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Description OSIDB Bzimport 2026-10-21 01:02:20 UTC 
vLLM from 0.7.3 before 0.31.0 forwards the request-supplied mm_processor_kwargs.code_revision to Transformers AutoProcessor.from_pretrained, letting clients select which revision of a model's dynamic processor code is imported when trust_remote_code is enabled. An attacker controlling a revision in the served model repository can send a multimodal request to the unauthenticated /tokenize endpoint to execute arbitrary Python in the vLLM API process.