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
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| LMCache | LMCache | ≤ 0.5.5 | — |
References
- GitHub Issue #5511 issue-tracking
- https://github.com/LMCache/LMCache product
- https://github.com/LMCache/LMCache/blob/v0.5.5/lmcache/v1/multiprocess/config.py#L206 technical-description
- https://github.com/LMCache/LMCache/blob/v0.5.5/lmcache/v1/internal_api_server/common/env_api.py#L13 technical-description
- https://github.com/LMCache/LMCache/blob/v0.5.5/lmcache/v1/multiprocess/http_apis/quota_api.py#L138-L155 technical-description
- VulnCheck Advisory: LMCache through 0.5.5 Missing Authentication in MP HTTP Server Management API third-party-advisory