CVE-2026-107207: medium-severity vulnerability in LMCache
LMCache through 0.5.5 Missing Authentication in Frontend Node Catalog Allows SSRF Allowlist Bypass
Published
10Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 6.9
exploitation probability
—
observed exploitation
nono source reports it
LMCache through 0.5.5 contains a server-side request forgery vulnerability in its frontend monitoring service that allows unauthenticated attackers to bypass the proxy allowlist by registering arbitrary hosts. Attackers can add entries via POST /api/proxies and then use /proxy or /proxy2 to reach internal hosts, read responses, and tamper with nodes or stop the heartbeat.
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:N/SC:L/SI:L/SA:N
Affected products
LMCache · LMCacheRelated CVEs — LMCache
In the same product, most dangerous first.
CVE-2026-105192CRITICALLMCache Unauthenticated RCE in multiprocess mode via pickle deserializationEPSS 0.7%CVE-2026-107206HIGHLMCache through 0.5.5 Missing Authentication in MP HTTP Server Management APIEPSS —CVE-2026-107205HIGHLMCache through 0.5.5 Missing Authentication in MP Coordinator Fleet Control APIEPSS —CVE-2026-107204CRITICALLMCache through 0.5.5 Unauthenticated RCE via /run_script EndpointEPSS —
References
https://github.com/LMCache/LMCachehttps://github.com/LMCache/LMCache/blob/v0.5.5/lmcache/lmcache_frontend/app.py#L411-L428https://github.com/LMCache/LMCache/blob/v0.5.5/lmcache/lmcache_frontend/app.py#L567-L604https://github.com/LMCache/LMCache/issues/5512https://www.vulncheck.com/advisories/lmcache-through-0.5.5-missing-authentication-in-frontend-node-catalog-allows-ssrf-allowlist-bypass