CVE-2026-93839 LightLLM - Authentication Bypass

LightLLM through 1.2.0 contains an authentication bypass caused by lack of peer address validation in /pd_register WebSocket endpoint, letting unauthenticated attackers register arbitrary nodes and cause information disclosure and denial of service.

CVSS base score 9.8 /10
Critical
CISA KEV
Not listed
Public exploit
None known
Authentication
Not required
EPSS
0.76% chance of exploitation in 30 days
View the NVD record ↗