CVE-2026-92359

Summary

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.

Affected Software

Weaknesses

• CWE-942: Permissive Cross-domain Policy with Untrusted Domains
• CWE-346: Origin Validation Error

ADP Enrichment

CISA ADP Vulnrichment

• SSVC:
• Exploitation: none
  • Automatable: no
  • Technical Impact: partial

References

• https://vuldb.com/vuln/405445
• https://vuldb.com/vuln/405445/cti
• https://vuldb.com/cve/CVE-2026-92359
• https://vuldb.com/submit/934120
• 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/commit/9b143b9668fa52c2054ede9d34a45ac4b4401089
• https://github.com/ag-ui-protocol/ag-ui/releases/tag/AGUI.Abstractions%400.0.6
• https://github.com/ag-ui-protocol/ag-ui/

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