CVE-2026-9255 - Tool Execution Without Authorization via Piped Stdin in Kiro CLI

Cli ยท 2026-10-19

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Technical Details

Affected Versions prior to 1.28.0
Regions all
CVE IDs CVE-2026-9255
Migration Required Yes
Cost Impact Neutral

What This Means

For DevOps Teams

Update Kiro CLI to version 1.28.0 to address CVE-2026-9255, which allows unauthorized tool execution, and consider using the --no-interactive flag when piping content from untrusted sources to enhance security.

For Platform Teams

Deploy the updated Kiro CLI version 1.28.0 across development environments to resolve the security vulnerability and maintain a secure coding assistant for developers.

For Executives

Implement the latest Kiro CLI version 1.28.0 to mitigate the security risk of unauthorized tool execution, ensuring user environments remain secure and compliant with best practices.

Source

View original AWS announcement โ†’

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