CVE-2026-112380 - Missing authorization in the WhatsApp channel in Kiro Crew

Bulletin ID: 2026-140-AWS Scope: AWS Content Type: Important (requires attention) Publication Date: 10/20/2026 13:00 PM PDT Description: Kiro Crew is an open-source personal AI agent that can be reached from a web dashboard, a CLI, or messaging channels such as WhatsApp, and that runs tools on the operator's machine. We identified CVE-2026-112380, an authorization issue in the WhatsApp channel and the internal subagent run-control endpoints. In certain configurations where a WhatsApp group was added to an operator's allowed groups, or where the direct-message policy was set to open, a member of that WhatsApp group could send instructions to another session's subagent. The subagent then executed those instructions on the operator's machine under that session's approval policy, and the resulting audit trail was attributed to the operator rather than the actual sender. The default configuration is not affected: whatsapp.groups defaults to empty and whatsapp.dm_policy defaults to self, so a group that is not explicitly listed is dropped before dispatch. Impacted versions: >=0.4.0 AND
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