CVE-2026-85695
CRITICAL
NVD
CVSS Score
9.4
Severity
CRITICAL
Published
Sep 04, 2026
Vendor
unknown
Description
FastChat contains an authentication bypass vulnerability in the /register_worker 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 prompts, images, and responses, or probe internal network ports across the worker mesh.