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Arbitrary code execution via crafted project files in Kiro IDE

Bulletin ID: 2026-009-AWS Scope: AWS Content Type: Important (requires attention) Publication Date: 2026/03/17 12:15 PM PDT Description: Kiro is an AI-powered IDE for agentic software development. We identified CVE-2026-4295, where improper trust boundary enforcement allowed arbitrary code execution when a user opened a maliciously crafted project directory. Impacted versions: < 0.8.0 Please refer to the article below for the most up-to-date and complete information related to this AWS Security Bulletin.

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Vulnerabilities

CVEs named in this advisory

CVE-2026-4295View CVSS, KEV, EPSS, and threat context
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