CVE-2026-4295

HIGH

Arbitrary code execution via crafted project files in Kiro IDE

Title source: cna

Description

Improper trust boundary enforcement in Kiro IDE before version 0.8.0 on all supported platforms might allow a remote unauthenticated threat actor to execute arbitrary code via maliciously crafted project directory files that bypass workspace trust protections when a local user opens the directory. To remediate this issue, users should upgrade to version 0.8.0 or higher.

References (2)

[Vendor Advisory] https://aws.amazon.com/security/security-bulletins/2026-009-AWS/

[Release Notes] https://kiro.dev/changelog/ide/0-8/

Scores

CVSS v3 7.8

EPSS 0.0002

EPSS Percentile 4.5%

Attack Vector LOCAL

CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Details

CWE

CWE-829

Status published

Products (1)

AWS/Kiro IDE 0.1.0 - 0.8.0

Published Mar 17, 2026

Tracked Since Mar 18, 2026