CVE-2026-18657

Executable Resolution from Untrusted Project Directory in Kiro CLI on Windows

Published Aug 4, 2026 CVSS 4.0 · 8.5 High EPSS < 1% KEV · Not listed
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.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

No advisories available
History
Type Values Removed Values Added
First Time appeared Microsoft
Microsoft windows
CPEs cpe:2.3:o:microsoft:windows:-:*:*:*:*:*:*:*
Vendors & Products Microsoft
Microsoft windows
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}

Type Values Removed Values Added
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.
Title Executable Resolution from Untrusted Project Directory in Kiro CLI on Windows
First Time appeared Amazon
Amazon kiro Cli
Weaknesses CWE-427
CPEs cpe:2.3:a:amazon:kiro_cli:*:*:*:*:*:*:*:*
Vendors & Products Amazon
Amazon kiro Cli
References
Metrics cvssV3_1

{'score': 7.8, 'vector': 'CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H'}

cvssV4_0

{'score': 8.5, 'vector': 'CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
AMZN
Published
Updated
Aug 5, 2026, 3:57 AM
Reserved
Aug 3, 2026, 1:09 PM
Status
Analyzed
Published
Aug 4, 2026, 8:16 PM
Modified
Oct 24, 2026, 4:10 PM