CVE-2026-93592
highvLLM 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 c…
Vendor / product: 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.
CVSS
7.5
7.5 (CVSS v3.1)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H Severity source: NVD CVSS v3.1 (disclosure@vulncheck.com)
Timeline (UTC)
Published: 2026-09-18 14:19
Modified: 2026-09-28 18:37
NVD status: Analyzed
Last synced 2 days ago
Verified against the source API 2026-10-27 06:54 UTC
Exploitation
Not listed in CISA KEV (as of last catalog sync)
Absence from KEV does not mean a CVE is not exploited. Exploitation status: unknown (no authoritative evidence in our sources).
Affected products
vllm / vllm <0.28.0
Weakness classification (CWE)
Source: NVD / CISA. “NVD-CWE-Other” and “NVD-CWE-noinfo” mean NVD could not assign a specific weakness.
Mitigation & advisories
Patch / mitigation: https://github.com/vllm-project/vllm/security/advisories/GHSA-25q3-v2hm-8vpf
Patch / mitigation: https://github.com/vllm-project/vllm/security/advisories/GHSA-25q3-v2hm-8vpf
References
- https://github.com/vllm-project/vllm/security/advisories/GHSA-25q3-v2hm-8vpf disclosure@vulncheck.com
- https://www.vulncheck.com/advisories/vllm-before-0.28.0-denial-of-service-via-negative-tok... disclosure@vulncheck.com
- https://github.com/vllm-project/vllm/security/advisories/GHSA-25q3-v2hm-8vpf 134c704f-9b21-4f2e-91b3-4a467353bcc0
Data sources
NVD CVE API 2.0 — fetched 2026-10-27 06:54 UTC · record ↗