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 [email protected] is sufficient to fix this issue. The patch is identified as 9b143b9668fa52c2054ede9d34a45ac4b4401089. It is suggested to upgrade the affected component.
https://vuldb.com/vuln/405445/cti
https://vuldb.com/submit/934120
https://vuldb.com/cve/CVE-2026-92359
https://github.com/ag-ui-protocol/ag-ui/releases/tag/AGUI.Abstractions%400.0.6
https://github.com/ag-ui-protocol/ag-ui/pull/2492
https://github.com/ag-ui-protocol/ag-ui/issues/2433
https://github.com/ag-ui-protocol/ag-ui/commit/9b143b9668fa52c2054ede9d34a45ac4b4401089
Published: 2026-09-16
Updated: 2026-09-23
Base Score: 2.6
Vector: CVSS2#AV:N/AC:H/Au:N/C:P/I:N/A:N
Severity: Low
Base Score: 3.1
Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:N/A:N
Severity: Low
Base Score: 2.3
Vector: CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:P/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N
Severity: Low
EPSS: 0.00228