vLLM: Loose `cache_salt` validation lets a single request kill EngineCore on LMCache-MP deployments — uncaught downstream `ValueError` denial of service

Affected - Ecosystem / package: pip / vllm - Affected versions: vLLM ≤ 0.25.1 confirmed on 0.25.1, commit 752a3a504485. The lower bound predates 0.25.1; maintainers can confirm how far back the loose cachesalt validator and unguarded scheduling-path lookup reach. Summary vLLM's OpenAI-compatible...

EUVD-2026-92846

vLLM: Loose cachesalt validation lets a single request kill EngineCore on LMCache-MP deployments — uncaught downstream ValueError denial of service...

CVE-2026-105756

vLLM is an inference and serving engine for large language models. Prior to 0.30.0, OpenAI-compatible request models accept a non-empty cachesalt value without enforcing the character and length restrictions required by the IPCCacheServerKey consumer in LMCache-MP. On deployments using the...

CVE-2026-105756 vLLM: Loose `cache_salt` validation lets a single request kill EngineCore on LMCache-MP deployments — uncaught downstream `ValueError` denial of service

vLLM is an inference and serving engine for large language models. Prior to 0.30.0, OpenAI-compatible request models accept a non-empty cachesalt value without enforcing the character and length restrictions required by the IPCCacheServerKey consumer in LMCache-MP. On deployments using the...

CVE-2026-105756 vLLM: Loose `cache_salt` validation lets a single request kill EngineCore on LMCache-MP deployments — uncaught downstream `ValueError` denial of service

vLLM is an inference and serving engine for large language models. Prior to 0.30.0, OpenAI-compatible request models accept a non-empty cachesalt value without enforcing the character and length restrictions required by the IPCCacheServerKey consumer in LMCache-MP. On deployments using the...

CVE-2026-105756

Prior to version 0.30.0 , the vLLM inference and serving engine is vulnerable to a denial of service via an uncaught ValueError . The root cause is improper input validation of the cache_salt value in OpenAI-compatible request models. On deployments using the LMCache-MP connector, providing a sal...

PT-2026-106266

Name of the Vulnerable Software and Affected Versions vLLM versions prior to 0.30.0 Description vLLM is an inference and serving engine for large language models. OpenAI-compatible request models accept a cache salt value without enforcing the character and length restrictions required by the...