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.

Attack Vector Network

Attack Complexity Low

Privileges Required None

Attack Requirements None

User Interaction None

Vulnerable System Confidentiality Impact Low

Vulnerable System Integrity Impact Low

Vulnerable System Availability Impact Low

Subsequent System Confidentiality Impact None

Subsequent System Integrity Impact None

Subsequent System Availability Impact None

Attack Vector Network

Attack Complexity Low

Privileges Required None

Scope Unchanged

Confidentiality Impact Low

Integrity Impact Low

Availability Impact Low

User Interaction None

Attack Vector Network

Attack Complexity Low

Privileges Required None

Scope Unchanged

Confidentiality Impact Low

Integrity Impact Low

Availability Impact Low

User Interaction None

Access Vector Network

Access Complexity Low

Authentication None

Confidentiality Impact Partial

Integrity Impact Partial

Availability Impact Partial

This CVE is not in the KEV list.

No EPSS score available.

Key SSVC decision points have not yet been added.

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions
cheshire-cat-ai Cheshire Cat AI affected
Version Status Constraints
1.9.0 affected —
1.9.1 affected —
1.9.2 affected —

No data.

No data.

No data.

Project Subscriptions

Vendors Products
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Advisories

No advisories yet.

Fixes

Solution

No solution given by the vendor.

Workaround

No workaround given by the vendor.

References
Link Providers
https://github.com/cheshire-cat-ai/core/issues/1137 cve-icon cve-icon
https://vuldb.com/cve/CVE-2026-90579 cve-icon cve-icon
https://vuldb.com/submit/913219 cve-icon cve-icon
https://vuldb.com/vuln/403164 cve-icon cve-icon
https://vuldb.com/vuln/403164/cti cve-icon cve-icon
History

Sun, 13 Sep 2026 19:15:00 +0000

Type Values Removed Values Added
Description 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.
Title cheshire-cat-ai Cheshire Cat AI custom_auth_handler.py _authorize_http_key missing authentication
First Time appeared Cheshire-cat-ai
Cheshire-cat-ai cheshire Cat Ai
Weaknesses CWE-287
CWE-306
CPEs cpe:2.3:a:cheshire-cat-ai:cheshire_cat_ai:*:*:*:*:*:*:*:*
Vendors & Products Cheshire-cat-ai
Cheshire-cat-ai cheshire Cat Ai
References
Metrics cvssV2_0

{'score': 7.5, 'vector': 'AV:N/AC:L/Au:N/C:P/I:P/A:P/E:POC/RL:ND/RC:UR'}

cvssV3_0

{'score': 7.3, 'vector': 'CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:R'}

cvssV3_1

{'score': 7.3, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:R'}

cvssV4_0

{'score': 6.9, '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'}

Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: VulDB

Published:

Updated: 2026-09-13T19:00:09.701Z

Reserved: 2026-09-12T16:38:13.983Z

Link: CVE-2026-90579

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Received

Published: 2026-09-13T19:16:53.517

Modified: 2026-09-13T19:16:53.517

Link: CVE-2026-90579

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

No data.

Weaknesses