vllm-project vLLM up to 0.27.x Token ID Validation /v1/embeddings token_ids input validation

Summaryinfo

A vulnerability, which was classified as problematic, was found in vllm-project vLLM up to 0.27.x. This affects an unknown part of the file /v1/embeddings of the component Token ID Validation. Such manipulation of the argument token_ids leads to input validation. This vulnerability is documented as CVE-2026-93592. The attack can be executed remotely. There is not any exploit available. You should upgrade the affected component.

Detailsinfo

A vulnerability, which was classified as problematic, has been found in vllm-project vLLM up to 0.27.x. Affected by this issue is some unknown functionality of the file /v1/embeddings of the component Token ID Validation. The manipulation of the argument token_ids with an unknown input leads to a input validation vulnerability. Using CWE to declare the problem leads to CWE-20. The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly. Impacted is availability. CVE summarizes:

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 advisory is available at github.com. This vulnerability is handled as CVE-2026-93592 since 09/18/2026. The exploitation is known to be easy. The attack may be launched remotely. No form of authentication is required for exploitation. Technical details are known, but there is no available exploit.

Upgrading to version 0.28.0 eliminates this vulnerability.

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Productinfo

Type

• Project Management Software

Vendor

• vllm-project

Name

• vLLM

Version

• 0.1
• 0.2
• 0.3
• 0.4
• 0.5
• 0.6
• 0.7
• 0.8
• 0.9
• 0.10
• 0.11
• 0.12
• 0.13
• 0.14
• 0.15
• 0.16
• 0.17
• 0.18
• 0.19
• 0.20
• 0.21
• 0.22
• 0.23
• 0.24
• 0.25
• 0.26
• 0.27

Website

• Product: https://github.com/vllm-project/vllm/

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