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 7.5 HIGH

7.5^/10

CVSS v3 : HIGH

Vector :

Exploitability : 3.9 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://github.com/vllm-project/vllm/security/advisories/GHSA-25q3-v2hm-8vpf	Exploit Mitigation Patch Vendor 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	Exploit Mitigation Patch Vendor Advisory

Configurations

Configuration 1 (hide)

cpe:2.3:a:vllm:vllm:*:*:*:*:*:*:*:*

History

28 Sep 2026, 18:37

Type	Values Removed	Values Added
First Time		Vllm vllm Vllm
CPE		cpe:2.3:a:vllm:vllm::::::::
References	~~() https://github.com/vllm-project/vllm/security/advisories/GHSA-25q3-v2hm-8vpf -~~	() https://github.com/vllm-project/vllm/security/advisories/GHSA-25q3-v2hm-8vpf - Exploit, Mitigation, Patch, Vendor Advisory
References	~~() https://www.vulncheck.com/advisories/vllm-before-0.28.0-denial-of-service-via-negative-token-id -~~	() https://www.vulncheck.com/advisories/vllm-before-0.28.0-denial-of-service-via-negative-token-id - Third Party Advisory

18 Sep 2026, 18:18

Type	Values Removed	Values Added
References	~~() https://github.com/vllm-project/vllm/security/advisories/GHSA-25q3-v2hm-8vpf -~~	() https://github.com/vllm-project/vllm/security/advisories/GHSA-25q3-v2hm-8vpf -

18 Sep 2026, 14:19

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-09-18 14:19

Updated : 2026-09-28 18:37

NVD link : CVE-2026-93592

Mitre link : CVE-2026-93592

CVE.ORG link : CVE-2026-93592

JSON object : View

Products Affected

vllm

vllm

CWE

CWE-129

Improper Validation of Array Index

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