CVE-2026-85671: Netease-Youdao Qanything

High severity, CVSS 7.5. EPSS: 0.6% chance of exploitation in the next 30 days.

QAnything 2.0.0 contains an authentication bypass vulnerability in the /api/local_doc_qa/get_file_base64 and /api/local_doc_qa/get_doc endpoints that allows unauthenticated attackers to access any uploaded file or document. Attackers can enumerate file identifiers through unauthenticated endpoints and retrieve base64-encoded files or parsed document chunks without ownership verification to disclose cross-tenant knowledge base content.

Affected products

• Netease-Youdao Qanything: up to and including 2.0.0

Published 2026-09-04. Last modified 2026-09-23.