Improper Validation of Array Index Affecting vllm package, versions [0.6.1, 0.20.0)
Threat Intelligence
Snyk has a proof-of-concept or detailed explanation of how to exploit this vulnerability.
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applications- Snyk IDSNYK-PYTHON-VLLM-16427000
- published6 May 2026
- disclosed5 May 2026
- creditWum1ng, Pengyu Ding, Ziteng Xu
Introduced: 5 May 2026
NewCVE-2026-44222 (opens in a new tab)How to fix?
Upgrade vllm to version 0.20.0 or higher.
Overview
vllm is an A high-throughput and memory-efficient inference and serving engine for LLMs
Affected versions of this package are vulnerable to Improper Validation of Array Index via the get_input_positions_tensor function. An attacker can cause the service to terminate or become unavailable by sending specially crafted requests containing placeholder tokens for images or videos without supplying the corresponding data, which leads to an unhandled exception during input position computation.