CVE-2026-93592CWE-129

CVE-2026-93592

High · published September 18, 2026

CVSS v3.1
7.5
EPSS
1%
Percentile
44.9
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.1
7.5 · HIGH
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CVSS v4.0
8.7 · 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
EPSS
0.00544 · 44.9th percentile
Weakness
CWE-129 · Improper Validation of Array Index
Published
2026-09-18T18:19Z
Affected products (1)
ProductVersionsFixed in
vllm/vllm< 0.28.00.28.0
References (3)
https://github.com/vllm-project/vllm/security/advisories/GHSA-25q3-v2hm-8vpf · [email protected]https://www.vulncheck.com/advisories/vllm-before-0.28.0-denial-of-service-via-negative-token-id · [email protected]https://github.com/vllm-project/vllm/security/advisories/GHSA-25q3-v2hm-8vpf · 134c704f-9b21-4f2e-91b3-4a467353bcc0
EPSS history
Timeline
  • 20 SEP 03:25Z
    EPSS moved — → 0%
    epss
  • 18 SEP 13:20Z
    vLLM before 0.28.0 Denial of Service via negative token ID
    cvelistv5