CVE-2026-85671
QAnything 2.0.0 Unauthenticated Cross-User File Disclosure
CVSS Score
7.5
EPSS Score
0.0%
EPSS Percentile
0th
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.
| CWE | CWE-306 |
| Vendor | netease-youdao |
| Product | qanything |
| Published | Sep 4, 2026 |
| Last Updated | Sep 14, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
None
Availability
None
Affected Versions
netease-youdao / QAnything
0 ≤ 2.0.0
References
github.com: https://github.com/netease-youdao/QAnything/issues/670 github.com: https://github.com/netease-youdao/QAnything github.com: https://github.com/netease-youdao/QAnything/blob/v2.0.0/qanything_kernel/qanything_server/handler.py vulncheck.com: https://www.vulncheck.com/advisories/qanything-2.0.0-unauthenticated-cross-user-file-disclosure
Credits
George Chen