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CVE-2026-107206— LMCache through 0.5.5 Missing Authentication in MP HTTP Server Management API

Quick assessment

Affected
LMCache LMCache
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

LMCache 0.5.5 及之前版本在多进程模式的 HTTP 服务器中存在一个缺失身份认证的漏洞，该漏洞允许远程未认证的攻击者访问默认监听在所有网络接口上的管理端点。攻击者可以通过访问 GET /env 读取环境变量中的凭据，通过 GET /config 读取配置信息，清除缓存、删除缓存对象，以及修改租户配额以驱逐其他租户的缓存数据。

CVSS 9.4 · Critical
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I. Basic Information for CVE-2026-107206

Vulnerability Information
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Vulnerability Title
LMCache through 0.5.5 Missing Authentication in MP HTTP Server Management API
Source: CVE Program / CVE List V5
Vulnerability Description
LMCache through 0.5.5 contains a missing authentication vulnerability in the multiprocess mode HTTP server that allows remote unauthenticated attackers to access management endpoints listening on all interfaces by default. Attackers can read environment credentials via GET /env and configuration via GET /config, clear caches, delete cache objects, and modify tenant quotas to evict other tenants' cached data.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
关键功能的认证机制缺失
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
LMCache LMCache 0 ~ 0.5.5 -

II. Public POCs for CVE-2026-107206

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III. Intelligence Information for CVE-2026-107206

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Patches & Fixes for CVE-2026-107206 (2)

Vendor Advisories for CVE-2026-107206 (2)

Same Patch Batch · LMCache · 2026-10-07 · 5 CVEs total

CVE-2026-105192 9.8 CRITICAL LMCache Unauthenticated RCE in multiprocess mode via pickle deserialization
CVE-2026-107204 9.8 CRITICAL LMCache through 0.5.5 Unauthenticated RCE via /run_script Endpoint
CVE-2026-107205 8.6 HIGH LMCache through 0.5.5 Missing Authentication in MP Coordinator Fleet Control API
CVE-2026-107207 7.2 HIGH LMCache through 0.5.5 Missing Authentication in Frontend Node Catalog Allows SSRF Allowlis

IV. Related Vulnerabilities

Same product: LMCache
Same vendor: LMCache
Same weakness: CWE-306

V. Comments for CVE-2026-107206

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