CVE-2026-85695

FastChat contains an authentication bypass vulnerability in the /registerworker endpoint that allows unauthenticated attackers to register arbitrary worker addresses and perform server-side request forgery. Attackers can register malicious workers under victim model names to intercept user prompt...

CVE-2026-85695

FastChat (lm-sys/FastChat) has an authentication bypass in the /register_worker endpoint that allows unauthenticated attackers to register arbitrary worker addresses. This enables server-side request forgery (SSRF) and model spoofing : attackers can register malicious workers under victim model n...

PT-2026-85581

Name of the Vulnerable Software and Affected Versions FastChat affected versions not specified Description An authentication bypass exists in the '/register worker' endpoint, allowing unauthenticated attackers to register arbitrary worker addresses. This leads to server-side request forgery SSRF,...

CVE-2026-42228 n8n: Hijacking of Unauthenticated Chat Execution

n8n is an open source workflow automation platform. Prior to versions 1.123.32, 2.17.4, and 2.18.1, the /chat WebSocket endpoint used by the Chat Trigger node's Hosted Chat feature did not verify that an incoming connection was authorized to interact with the target execution. An unauthenticated...