CVE-2026-105756

CVE Enrichment

CVSS: 6.5 MEDIUM
EPSS: 0.31%
EPSS Percentile: 22.37%
CISA KEV: Not listed

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.

Technical Details

CVSS Version: 3.1
CNA / NVD Source: security-advisories@github.com
Published: 06-Oct-2026 06:17
Last Modified: 08-Oct-2026 08:28
EPSS Date: 2026-10-10
CWE: CWE-20, CWE-248

CVSS Vector


            CVSS:3.1                            AV:N /
                            AC:L /
                            PR:L /
                            UI:N /
                            S:U /
                            C:N /
                            I:N /
                            A:H

Affected Products / Versions

vllm / vllm
Version / affected range: * · before (exclusive) 0.30.0
cpe:2.3:a:vllm:vllm:*:*:*:*:*:*:*:*

References

Last enrichment sync: 11-Oct-2026 12:39
Sources: NVD · FIRST EPSS · CISA KEV
Latest successful provider update; providers refresh independently.

Reported Context (1)

on deployments that use the LMCache multiprocess connector, a denial-of-service bug tracked as CVE-2026-105756. It is rated 6.5 and does not allow code execution. Critical LMCache Flaw Enables Unauthenticated Remote Code Execution

CVE (1)

People (1)

Products (2)

Note: Related entities, including threat actors, malware, CVEs, MITRE ATT&CK techniques, vendors, products, tools, countries, and industries, are shown when they appear in the same reporting. Their presence does not necessarily mean they were targeted, compromised, vulnerable, responsible for the activity, or directly involved in the incident.