Vulnerability in Vllm-Project Vllm
CVE-2026-93592
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 v3 metric
CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.
Affected products
Weakness classification (CWE)
References
- disclosure@vulncheck.com (vendor-advisory)
- disclosure@vulncheck.com (third-party-advisory)
Frequently asked questions
- What is CVE-2026-93592?
- CVE-2026-93592 is a high-severity vulnerability in Vllm-Project Vllm, classified under Improper Validation of Array Index. CVSS score: 7.5/10. Published 2026-09-18.
- How severe is CVE-2026-93592?
- High severity. CVSS v3 base score is 7.5 out of 10.