CVE-2026-10591: Kiro IDE Insufficient File Write Restrictions to Execution-Sensitive Paths

Severity: high (CVSS 8.8 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.8% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2026-06-02 · updated 2026-10-20
Weakness: CWE-732

Description

Insufficient access control restrictions in the file write tool in Amazon Kiro IDE before version 0.11 might allow remote unauthenticated actors to execute arbitrary commands via crafted instructions that cause writes to execution-sensitive paths (such as .vscode/tasks.json), enabling auto-execution on folder open. To remediate this issue, users should upgrade to Kiro IDE version 0.11 or later.

Affected products

AWS Kiro IDE: before 0.11 — fixed in 0.11

How to fix

Upgrade to a fixed version: AWS Kiro IDE 0.11. Check the vendor advisory for mitigations.

References

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