What’s Vulnerable › Vulnerabilities

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

• Severity: critical (CVSS 9.4 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.6% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-10-07 · updated 2026-10-08
• Weakness: CWE-306

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.

Affected products

• LMCache: through 0.5.5

References

• https://github.com/LMCache/LMCache
• https://github.com/LMCache/LMCache/blob/v0.5.5/lmcache/v1/internal_api_server/common/env_api.py#L13
• https://github.com/LMCache/LMCache/blob/v0.5.5/lmcache/v1/multiprocess/config.py#L206
• https://github.com/LMCache/LMCache/blob/v0.5.5/lmcache/v1/multiprocess/http_apis/quota_api.py#L138-L155
• https://github.com/LMCache/LMCache/issues/5511
• https://www.vulncheck.com/advisories/lmcache-through-0.5.5-missing-authentication-in-mp-http-server-management-api
• https://github.com/LMCache/LMCache/issues/5511

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