Vulnerability · Published Jun 2, 2026 · Assigned by AMZN

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

High 8.8

In plain English

A high-severity incorrect permission assignment in Kiro IDE from AWS. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.8% (higher than 58% of all known vulnerabilities).

Severity (CVSS 3.1)8.8High

Exploit odds (30 days)0.8%top 42.3% of all CVEs

Exploited in the wildNo reportsCISA SSVC: none

Attack toolingNoneno public tooling known

Official 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 (as reported)

Vendor	Product	Versions
AWS	Kiro IDE	0 – before 0.11

Weakness: CWE-732 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

References

https://kiro.dev/changelog/ide/0-11/ release-notes
https://aws.amazon.com/security/security-bulletins/2026-037-aws/ vendor-advisory