CVE-2025-46570

LOW

2.6

Description

vLLM is an inference and serving engine for large language models (LLMs). Prior to version 0.9.0, when a new prompt is processed, if the PageAttention mechanism finds a matching prefix chunk, the prefill process speeds up, which is reflected in the TTFT (Time to First Token). These timing differences caused by matching chunks are significant enough to be recognized and exploited. This issue has been patched in version 0.9.0.

Details CVE

Score CVSS v3.12.6

SeveriteLOW

Vecteur CVSSCVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:L/I:N/A:N

Vecteur d'attaqueNETWORK

ComplexiteHIGH

Privileges requisLOW

Interaction utilisateurREQUIRED

Publie5/29/2025

Derniere modification6/24/2025

Sourcenvd

Observations honeypot0

Produits affectes

vllm:vllm

Faiblesses (CWE)

CWE-208CWE-203

References

https://github.com/vllm-project/vllm/commit/77073c77bc2006eb80ea6d5128f076f5e6c6f54f(security-advisories@github.com)

https://github.com/vllm-project/vllm/pull/17045(security-advisories@github.com)

https://github.com/vllm-project/vllm/security/advisories/GHSA-4qjh-9fv9-r85r(security-advisories@github.com)

Correlations IOC

Aucune correlation enregistree

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