Integer Overflow or Wraparound Affecting vllm package, versions [,0.27.0)
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-18857157
- published16 Aug 2026
- disclosed13 Aug 2026
- creditLinhai Song, Molly
Introduced: 13 Aug 2026
NewCVE-2026-73558 (opens in a new tab)How to fix?
Upgrade vllm to version 0.27.0 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 Integer Overflow or Wraparound due to an integer overflow in the act_and_mul_kernel in activation_kernels.cu. An attacker can access another user's inference results by submitting a request that is processed in the same inference batch.