CVE-2026-90579 PUBLISHED

cheshire-cat-ai Cheshire Cat AI custom_auth_handler.py _authorize_http_key missing authentication

Assigner: VulDB
Reserved: 12.09.2026 Published: 13.09.2026 Updated: 13.09.2026

A vulnerability has been found in cheshire-cat-ai Cheshire Cat AI up to 1.9.2. This affects the function _authorize_http_key of the file core/cat/factory/custom_auth_handler.py. The manipulation of the argument user_id leads to missing authentication. The attack may be initiated remotely. The exploit has been disclosed to the public and may be used. The project was informed of the problem early through an issue report but has not responded yet.

Metrics

CVSS Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P
CVSS Score: 6.9

Product Status

Vendor cheshire-cat-ai
Product Cheshire Cat AI
Versions
  • Version 1.9.0 is affected
  • Version 1.9.1 is affected
  • Version 1.9.2 is affected

Credits

  • geochen (VulDB User) reporter
  • VulDB CNA Team coordinator

References

Problem Types

  • Missing Authentication CWE
  • Improper Authentication CWE