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.
What this means for your business
- An attacker can use it remotely, over a network, without a login, but only after tricking someone into an action such as opening a file or a link.
What to do
- 1Ask your IT team or provider whether any of your systems use the affected product.
- 2If you do, follow the vendor's guidance. No patch reference has been published yet.
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Scoring
- CVSS
- 3.1 (v3.1)
- Vector
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:N/A:N- CVSS v4
- 2.3
- Weakness
- CWE-346
- Assigned by
- cna@vuldb.com
Dates
- Published
- 2026-09-16
- Last modified
- 2026-09-16
- Sources
- NVD
References
- https://github.com/ag-ui-protocol/ag-ui/
- https://github.com/ag-ui-protocol/ag-ui/commit/9b143b9668fa52c2054ede9d34a45ac4b4401089
- https://github.com/ag-ui-protocol/ag-ui/issues/2433
- https://github.com/ag-ui-protocol/ag-ui/pull/2492
- https://github.com/ag-ui-protocol/ag-ui/releases/tag/AGUI.Abstractions%400.0.6
- https://vuldb.com/cve/CVE-2026-92359
- https://vuldb.com/submit/934120
- https://vuldb.com/vuln/405445
- https://vuldb.com/vuln/405445/cti