CVE-2026-9255

Missing input source validation in the tool authorization prompt in Kiro CLI before 1.28.0 allows a local attacker to execute arbitrary tools, including shell commands, without user approval by crafting content that is piped to kiro-cli via stdin. We recommend you to upgrade to kiro-cli version 1.28.0 or later.

CVSS v3 7.8 HIGH

7.8^/10

CVSS v3 : HIGH

Vector :

Exploitability : 1.8 / Impact : 5.9

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required NONE

User Interaction REQUIRED

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://aws.amazon.com/security/security-bulletins/2026-035-aws/	Vendor Advisory
https://kiro.dev/changelog/cli/1-28/	Release Notes

Configurations

Configuration 1 (hide)

cpe:2.3:a:amazon:kiro_cli:*:*:*:*:*:*:*:*

History

04 Jun 2026, 15:21

Type	Values Removed	Values Added
First Time		Amazon kiro Cli Amazon
CPE		cpe:2.3:a:amazon:kiro_cli::::::::
References	~~() https://aws.amazon.com/security/security-bulletins/2026-035-aws/ -~~	() https://aws.amazon.com/security/security-bulletins/2026-035-aws/ - Vendor Advisory
References	~~() https://kiro.dev/changelog/cli/1-28/ -~~	() https://kiro.dev/changelog/cli/1-28/ - Release Notes

22 May 2026, 18:28

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-05-22 17:16

Updated : 2026-06-04 15:21

NVD link : CVE-2026-9255

Mitre link : CVE-2026-9255

CVE.ORG link : CVE-2026-9255

JSON object : View

Products Affected

amazon

kiro_cli

CWE

CWE-862

Missing Authorization

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