An uncontrolled search path element in Kiro CLI before version 2.10.0 on Windows might allow a remote unauthenticated actor to execute arbitrary code via a maliciously crafted project directory containing an executable that bypasses workspace trust protections when a local user starts Kiro CLI in the directory. To remediate this issue, users should upgrade to version 2.10.0 or higher.
Fix
Patch, vendor advisory and mitigation references on NVD 1
- https://aws.amazon.com/security/security-bulletins/2026-074-aws/ Vendor Advisory
Vendor advisories in the News 1
- CVE-2026-18656 & CVE-2026-18657 - Issue with Kiro IDE and CLI - Executable Resolution from Untrusted Project Directory on Windows AWS Security Bulletins · 2026-10-21
Every line above is quoted from NVD, CISA, Microsoft, the vendor's own advisory or DISA; nothing is generated.
Change history 1
- First seenCVSS 8.5 · amazonNVD modified 2026-10-23 21:10
Affected (CPE criteria) 1
cpe:2.3:a:amazon:kiro_cli:*:*:*:*:*:*:*:*
References 2
- https://aws.amazon.com/security/security-bulletins/2026-074-aws/ Vendor Advisory
- https://kiro.dev/changelog/cli/2-10/ Release Notes