What is CVE-2026-92359?

CVE-2026-92359 is a low-severity vulnerability in Ag-Ui-Protocol Ag-Ui, classified under Origin Validation Error. CVSS score: 3.1/10. Published 2026-09-16.

How severe is CVE-2026-92359?

Low severity. CVSS v3 base score is 3.1 out of 10.

Vulnerability in Ag-Ui-Protocol Ag-Ui

CVE-2026-92359

A security flaw has been discovered in ag-ui-protocol ag-ui 0.3.0. The affected element is the function create_strands_app of the file integrations/aws-strands/python/src/ag_ui_strands/utils.py of the component CORSMiddleware. The manipulation results in permissive cross-domain policy with untrusted domains. The attack may be launched remotely. The attack requires a high level of complexity. The exploitability is described as difficult. Upgrading to version AGUI.Abstractions@0.0.6 is sufficient to fix this issue. The patch is identified as 9b143b9668fa52c2054ede9d34a45ac4b4401089. It is suggested to upgrade the affected component.

CVSS v3 metric

CVSS v3 base score 3.1 (Low). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:N/A:N.

Affected products

Ag-ui-protocol Ag-ui — versions 0.3.0

Weakness classification (CWE)

References

cna@vuldb.com (technical-description, vdb-entry)
cna@vuldb.com (signature, permissions-required)
cna@vuldb.com (third-party-advisory)
cna@vuldb.com (third-party-advisory)
cna@vuldb.com (issue-tracking)
cna@vuldb.com (issue-tracking, patch)
cna@vuldb.com (patch)
cna@vuldb.com (patch)
cna@vuldb.com (product)

Frequently asked questions

What is CVE-2026-92359?: CVE-2026-92359 is a low-severity vulnerability in Ag-Ui-Protocol Ag-Ui, classified under Origin Validation Error. CVSS score: 3.1/10. Published 2026-09-16.
How severe is CVE-2026-92359?: Low severity. CVSS v3 base score is 3.1 out of 10.