CVE-2026-105756: CWE-20: Improper Input Validation in vllm-project vllm
Description
vLLM is an inference and serving engine for large language models. Prior to 0.30.0, OpenAI-compatible request models accept a non-empty cache_salt value without enforcing the character and length restrictions required by the IPCCacheServerKey consumer in LMCache-MP. On deployments using the LMCache-MP connector, a salt that contains a forbidden character or exceeds the permitted length can raise an uncaught ValueError during scheduler cache lookup, causing EngineCore to terminate and denying service to all concurrent users. This issue is fixed in version 0.30.0.
CVSS v3.1
Score 6.5medium
Affected software
vllm-project
vllm
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- GitHub_M
- Date Reserved
- 2026-10-05T19:11:07.947Z
- Cvss Version
- 3.1
- State
- PUBLISHED
Threat ID: 6ac42ce12cdf04f656446bf4
Added to database: 10/05/2026, 23:04:01 UTC
Last updated: 10/05/2026, 23:04:01 UTC
Views: 1
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