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TI-2026-58783 Aliases CVE-2026-85671GHSA-mq4x-r3rg-g5rq

QAnything 2.0.0 Unauthenticated Cross-User File Disclosure

Priority MEDIUM 45CWE-306Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Attack requirements
None
Impact type
Security bypass
Confidentiality · integrity · availability
High · None · None
Fix status
No fix listed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-306.

Summary

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.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00643 51st percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
Yes
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
netease-youdaoQAnythingup to 2.0.0—No fix listedCNA
  • QAnything Vendornetease-youdao Affected up to 2.0.0 Fixed in — No fix listed CNA

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-85671
  2. 2026-10-03 Alias added: GHSA-mq4x-r3rg-g5rq
  3. 2026-10-21 EPSS moved to the 50th–90th percentile

References

Other 3

  • TI-2024-06574 SQL Injection in netease-youdao/qanything CVSS 3.0CRITICAL 9.8
  • TI-2024-09510 HTTP Request Smuggling in netease-youdao/qanything CVSS 3.1CRITICAL 9.8
  • TI-2024-11923 Local File Inclusion in netease-youdao/qanything CVSS 3.1HIGH 7.5
  • TI-2024-11922 Unauthenticated DoS by Sending Large Filename at File Upload Endpoint in netease-youdao/qanything CVSS 3.0HIGH 7.5
  • TI-2024-07438 CORS Misconfiguration in netease-youdao/qanything CVSS 3.0HIGH 7.5
  • TI-2024-07440 CSRF due to overly permissive CORS headers in netease-youdao/qanything CVSS 3.1HIGH 8.1
See all 11 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences