Is CVE-2026-18657 being exploited?

No public exploit is currently tracked.

How severe is CVE-2026-18657?

CVE-2026-18657 has a CVSS v3 severity of HIGH (7.8).

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CVE-2026-18657

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.