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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.

PUBLISHED Reserved 2026-06-01 | Published 2026-06-02 | Updated 2026-06-02 | Assigner AMZN




HIGH: 8.8CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

HIGH: 8.6CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

Problem types

CWE-732: Incorrect Permission Assignment for Critical Resource

Product status

Default status
unaffected

Any version before 11
affected

Credits

Cymulate finder

References

kiro.dev/changelog/ide/0-11/ release-notes

aws.amazon.com/security/security-bulletins/2026-037-aws/ vendor-advisory

cve.org (CVE-2026-10591)

nvd.nist.gov (CVE-2026-10591)

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