CVE-2026-85671CWE-306

CVE-2026-85671

High · published September 4, 2026

CVSS v3.1
7.5
EPSS
1%
Percentile
50.2
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.1
7.5 · HIGH
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
CVSS v4.0
8.7 · CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N
EPSS
0.00643 · 50.2th percentile
Weakness
CWE-306 · Missing Authentication for Critical Function
Published
2026-09-04T19:17Z
References (4)
https://github.com/netease-youdao/QAnything · [email protected]https://github.com/netease-youdao/QAnything/blob/v2.0.0/qanything_kernel/qanything_server/handler.py · [email protected]https://github.com/netease-youdao/QAnything/issues/670 · [email protected]https://www.vulncheck.com/advisories/qanything-2.0.0-unauthenticated-cross-user-file-disclosure · [email protected]
EPSS history
Timeline
  • 06 SEP 03:33Z
    EPSS moved — → 0%
    epss
  • 04 SEP 14:32Z
    QAnything 2.0.0 Unauthenticated Cross-User File Disclosure
    cvelistv5