# CVE-2026-4295: AWS Kiro IDE arbitrary code execution via crafted project files

Source: https://junglewise.ai/threats/cve-2026-4295-aws-kiro-ide-arbitrary-code-execution-via-crafted-project-files  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-03-17. Updated: 2026-05-15  
License: CC BY 4.0 with a link back

CVE-2026-4295 · Severity: high · Published 2026-03-17

Kiro IDE is an AI-powered development environment used for building software. A security flaw allows an attacker to execute malicious code on a developer's computer if the developer is tricked into opening a specially crafted project folder. This could lead to the theft of sensitive source code, credentials, or full control over the developer's workstation.

Technologies: [Amazon AWS](https://junglewise.ai/threats/technologies/aws), [AWS Kiro IDE](https://junglewise.ai/threats/technologies/kiro-ide). Vendors: [Amazon](https://junglewise.ai/threats/vendors/amazon), [AWS](https://junglewise.ai/threats/vendors/aws).

## Quick answers

**Is CVE-2026-4295 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-4295 being exploited in the wild.

**How severe is CVE-2026-4295?** High severity, published 17 March 2026.

**Which products and versions are affected?** AWS Kiro IDE < 0.8.0.

**Is there a fix for CVE-2026-4295?** A patch was published on 2026-03-17: Fixed in version 0.8.0 Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.

**How is CVE-2026-4295 attacked?** It is attacked with local access, in a network appliance.

**Am I affected by CVE-2026-4295?** Check whether you run Amazon AWS or AWS Kiro IDE at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

## Technical details

A vulnerability exists in Kiro IDE versions prior to 0.8.0 due to improper trust boundary enforcement when loading project files. An attacker can achieve arbitrary code execution by convincing a user to open a maliciously crafted project directory within the IDE. This is a local attack vector requiring user interaction (opening the directory). The root cause involves the IDE executing or processing untrusted configuration or project files without sufficient isolation or validation. The issue is resolved in version 0.8.0.

## Affected products

- AWS Kiro IDE < 0.8.0

## Timeline

- 2026-03-17: disclosed
- 2026-03-17: patched: Fixed in version 0.8.0

## References

- [https://aws.amazon.com/security/security-bulletins/rss/2026-009-aws/](https://aws.amazon.com/security/security-bulletins/rss/2026-009-aws/)

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