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Vulnerability record · CVE-2026-93592 · published 18 September 2026

CVE-2026-93592: Vllm vulnerability

Vllm · Vllm

vLLM versions before 0.28.0 fail to validate the lower bound of token IDs in the /v1/embeddings and /pooling endpoints, allowing unauthenticated attackers to crash the engine by submitting negative token IDs. A single request with a negative token ID triggers a CUDA device-side assertion that poisons the GPU context, causing all subsequent requests to fail until the process restarts.

8.7 CVSS 4.0 High EPSS 0.51% · top 58.9% CWE-129 · CWE-129
8.7CVSS 4.0 base score
0.51%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
3References, 2 tagged exploit
28 Sep 2026Last modified by NVD

Description

vLLM versions before 0.28.0 fail to validate the lower bound of token IDs in the /v1/embeddings and /pooling endpoints, allowing unauthenticated attackers to crash the engine by submitting negative token IDs. A single request with a negative token ID triggers a CUDA device-side assertion that poisons the GPU context, causing all subsequent requests to fail until the process restarts.

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/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:

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://github.com/vllm-project/vllm/security/advisories/GHSA-25q3-v2hm-8vpf ExploitMitigationPatchVendor Advisory
https://www.vulncheck.com/advisories/vllm-before-0.28.0-denial-of-service-via-negative-token-id Third Party Advisory
https://github.com/vllm-project/vllm/security/advisories/GHSA-25q3-v2hm-8vpf ExploitMitigationPatchVendor Advisory

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Same products first, then exploited flaws of the same weakness class.

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Source: NIST National Vulnerability Database (record CVE-2026-93592), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.