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vLLM EUVDEUVD-2026-76871

| CVE-2026-90553 HIGH
Code Injection (CWE-94)
2026-09-12 VulnCheck GHSA-rp86-qf3f-pqfc
8.5
CVSS 4.0 · Vendor: VulnCheck
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Severity by source

Vendor (VulnCheck) PRIMARY
8.5 HIGH
CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
vuln.today AI
8.6 HIGH

Exploitation is local (model loading), requires no attacker privileges, needs victim to load the model (UI:R), and crosses the trust_remote_code safety boundary (scope change).

3.1 AV:L/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H
4.0 AV:L/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

Primary rating from Vendor (VulnCheck).

CVSS VectorVendor: VulnCheck

Attack Vector
Local
Attack Complexity
Low
Privileges Required
None
User Interaction
P
Scope
X

Lifecycle Timeline

4
POC Analysis Generated
Sep 12, 2026 - 15:20 vuln.today
Patch available
Sep 12, 2026 - 14:01 EUVD
Analysis Generated
Sep 12, 2026 - 13:06 vuln.today
CVE Published
Sep 12, 2026 - 12:08 cve.org
HIGH 8.5

DescriptionCVE.org

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.

AnalysisAI

Remote code execution in vLLM's LlavaOnevision2 processor loader allows an attacker who controls a model repository to execute arbitrary code on systems that load that model, bypassing the trust_remote_code=False safety parameter entirely. All vLLM installations prior to version 0.28.0 are affected when loading LlavaOnevision2-architecture models; the security control that operators rely on to safely evaluate third-party models is silently non-functional for this processor class. …

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Attack ChainAIDerived

Hypothetical attack flow derived from CVE metadata

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Execution
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Vulnerability AssessmentAI

Exploitation Exploitation requires that the victim use a vLLM installation prior to version 0.28.0 and actively load a LlavaOnevision2-architecture model from an attacker-controlled source. … Additional conditions and limiting factors are described in the full assessment.
Risk Assessment The CVSS 4.0 score of 8.5 with AV:L/AC:L/AT:N/PR:N/UI:P reflects a realistic and moderately serious threat. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in.
Exploit Scenario Full exploit scenario with step-by-step reproduction available after sign-in.
Remediation Upgrade vLLM to version 0.28.0 or later, which corrects the trust_remote_code parameter enforcement in the LlavaOnevision2 processor loader. … Detailed patch versions, workarounds, and compensating controls in full report.

Recommended ActionAI

Immediately audit all vLLM deployments to identify which versions are in use and whether they load LlavaOnevision2-architecture models from external sources. …

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EUVD-2026-76871 vulnerability details – vuln.today

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