Integer Overflow or Wraparound Affecting vllm-cu129 package, versions <0.27.1-r0
Threat Intelligence
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-MINIMOSLATEST-VLLMCU129-19660392
- published10 Sept 2026
- disclosed13 Aug 2026
Introduced: 13 Aug 2026
CVE-2026-73558 (opens in a new tab)How to fix?
Upgrade Minimos:latest vllm-cu129 to version 0.27.1-r0 or higher.
NVD Description
Note: Versions mentioned in the description apply only to the upstream vllm-cu129 package and not the vllm-cu129 package as distributed by Minimos.
See How to fix? for Minimos:latest relevant fixed versions and status.
vLLM is an inference and serving engine for large language models. Prior to 0.27.0, an integer overflow in blockIdx.x * 2 * d in activation_kernels.cu can cause act_and_mul_kernel to consume another batched user's input, allowing a request processed in the same inference batch to receive a partial or complete copy of another user's inference result. This issue is fixed in version 0.27.0.
References
- https://www.cve.org/CVERecord?id=CVE-2026-73558
- https://github.com/advisories/GHSA-7m6h-x95x-82q5
- https://osv.dev/vulnerability/MINI-5654-wgg2-f6c6
- https://osv.dev/vulnerability/CVE-2026-73558
- https://github.com/vllm-project/vllm/commit/451227cb3ff07989698fed982c2d3e4300257924
- https://github.com/vllm-project/vllm/issues/42860
- https://github.com/vllm-project/vllm/pull/49660
- https://github.com/vllm-project/vllm/releases/tag/v0.27.0
- https://github.com/vllm-project/vllm/security/advisories/GHSA-7m6h-x95x-82q5