CVE-2026-4295 PUBLISHED

Arbitrary code execution via crafted project files in Kiro IDE

Assigner: AMZN
Reserved: 16.03.2026 Published: 17.03.2026 Updated: 18.03.2026

Improper trust boundary enforcement in Kiro IDE before version 0.8.0 on all supported platforms might allow a remote unauthenticated threat actor to execute arbitrary code via maliciously crafted project directory files that bypass workspace trust protections when a local user opens the directory.

To remediate this issue, users should upgrade to version 0.8.0 or higher.

CVSS Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
CVSS Score: 7.8

Attack Vector	Local	Scope	Unchanged
Attack Complexity	Low	Confidentiality Impact	High
Privileges Required	None	Integrity Impact	High
User Interaction	Required	Availability Impact	High

CVSS 3.1

CVSS Vector: CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
CVSS Score: 8.5

Exploitability Metrics		Vulnerable System Impact Metrics		Subsequent System Impact Metrics
Attack Vector	Local	Confidentiality	High	Confidentiality	None
Attack Complexity	Low	Integrity	High	Integrity	None
Attack Requirements	None	Availability	High	Availability	None
Privileges Required	None
User Interaction	Passive

CVSS 4.0

Product Status

Vendor	AWS
Product	Kiro IDE
Versions	Default: unaffected affected from 0.1.0 to 0.8.0 (excl.)

CVE-2026-4295 PUBLISHED

Arbitrary code execution via crafted project files in Kiro IDE

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Product Status

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