aws.amazon.comVendor advisory
https://aws.amazon.com/security/security-bulletins/2026-074-aws CVE-2026-18657
HIGH
Executable Resolution from Untrusted Project Directory in Kiro CLI on Windows
Record summary
CVE-2026-18657 has a selected CVSS score of 8.5 (high).
Description
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.
Description source: CVE List
Exploitation context
CISA SSVC decision
ExploitationNone
AutomatableNo
Technical impactTotal
CISA Coordinator · SSVC 2.0.3 · Evaluated Aug 4, 2026 · Source: CVE List
Affected products and versions
1| Product | Source | Version range | Status |
|---|---|---|---|
Kiro CLIBrowse Amazon / Kiro CLIDefault status: unaffected | CVE List | Before 2.10.0 | affected |
References
3kiro.devrelease notespatch
https://kiro.dev/changelog/cli/2-10 nvd.nist.gov
https://nvd.nist.gov/vuln/detail/CVE-2026-18657