rootpwn

critical · CVSS v3 9.8 · CVSS v4 9.3

CVE-2026-93839

LightLLM through 1.2.0 contains an authentication bypass vulnerability in the /pd_register WebSocket endpoint that allow…

Description

LightLLM through 1.2.0 contains an authentication bypass vulnerability in the /pd_register WebSocket endpoint that allows unauthenticated attackers to register arbitrary nodes by supplying crafted JSON without peer address validation. Attackers can disclose full user prompts routed to their socket, trigger denial of service by replacing legitimate nodes, or make the PD Master issue requests to internal network addresses.

Scores

Severity
critical
CVSS v2
10
CVSS v3
9.8
CVSS v4
9.3
EPSS
—

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