cheshire-cat-ai Cheshire Cat AI custom_auth_handler.py _authorize_http_key missing authentication (CVE-2026-90579) | HOL Guard CVE

Unknown severity · Source severity not reportedCVE-2026-90579

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

Answer in brief

CVE-2026-90579 records a Unknown severity vulnerability in cheshire-cat-ai Cheshire Cat AI custom_auth_handler.py _authorize_http_key missing authentication. The current sources do not mark it as known exploited. The current feed maps cheshire-cat-ai/Cheshire Cat AI (generic). Check affected ranges and fixed versions before updating.

Analysis pending evidence review

HOL Guard separates source facts from reviewed analysis. See the methodology.

Published Sep 13, 2026Updated Sep 13, 2026Source checked Sep 13, 2026First seen by HOL Sep 13, 2026Material review Sep 13, 2026

Upstream Advisory

Key facts

Risk: Unknown severitySource severity not reported
Exploitation: Not marked as known exploited
Affected software: 1 mapped package or product
Fix availability: Not reported

Why this deserves its current priority

A CVSS score is not reported in the current record. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.

Analysis status

Analysis pending evidence review

Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.

Affected scope and exposure questions

The current feed maps cheshire-cat-ai/Cheshire Cat AI (generic). Check affected ranges and fixed versions before updating.

Mapped affected packages and fixed versions
Package	Affected range	Fixed version
cheshire-cat-ai/Cheshire Cat AIgeneric	1.9.0 \|\| 1.9.1 \|\| 1.9.2	Not reported

Recommended response

Check inventory. Check lockfiles and deployed manifests for cheshire-cat-ai/Cheshire Cat AI.
Review the reported fix. Monitor this advisory for an available fix and review any installs of the affected package.

Evidence timeline and material changes

Published upstream
Sep 13, 2026
Evidence: source:cvelist:source_dates:source-dates:record
Source modified
Sep 13, 2026
Evidence: source:cvelist:source_dates:source-dates:record
First seen by HOL
Sep 13, 2026

Sources and claim methodology

Upstream source 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.

Quoted source text, attributed separately from HOL analysis.