CVE-2026-90579cheshire-cat-ai Cheshire Cat AI custom_auth_handler.py _authorize_http_key missing authentication
Updated under an hour ago ()
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No exploitation reported and no EPSS estimate yet.
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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.
- CVSS
- 7.3 HIGH (v3.1, CNA)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
- Weakness (CWE)
- CWE-306, CWE-287
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- VulDB
- NVD analysis
- Deferred
- Record last updated
- Sep 14, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
cheshire-cat-ai Cheshire Cat AI cheshire-cat-ai:cheshire_cat_ai | 1.9.0; 1.9.1; 1.9.2 | CNA record |
References
- https://vuldb.com/vuln/403164vdb-entry, technical-description
- https://vuldb.com/vuln/403164/ctisignature, permissions-required
- https://vuldb.com/cve/CVE-2026-90579third-party-advisory
- https://vuldb.com/submit/913219third-party-advisory
- https://github.com/cheshire-cat-ai/core/issues/1137exploit, issue-tracking
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.