TI-2026-15289 Aliases CVE-2026-18656 GHSA-hhmj-6g9r-9vvq

Executable Resolution from Untrusted Project Directory in Kiro IDE on Windows

LOW 38CWE-427Published 2026-08-04 · Updated 2026-08-05

Key facts

Attack vector: Local
Privileges required: None
User interaction: Passive
Attack complexity: Low
Attack requirements: None
Impact type: Code execution
Confidentiality · integrity · availability: High · High · High
Fix status: No fix listed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-427.

Summary

An uncontrolled search path element in Kiro IDE before version 1.0.228 on Windows might allow a remote unauthenticated actor to execute arbitrary code via a maliciously crafted project directory containing an executable that bypasses workspace trust protections when a local user opens the directory. To remediate this issue, users should upgrade to version 1.0.228 or higher.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV

EPSS 0.00224 13th percentileScored 2026-11-07

Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation: None
Automatable: No
Technical impact: Total

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

Vendor	Product	Affected versions	Fixed in	Status	Source
AWS	Kiro IDE	1.0.0 – 1.0.212	—	No fix listed	CNA

Kiro IDE VendorAWS Affected 1.0.0 – 1.0.212 Fixed in — No fix listed CNA

CPE configurations NVD · 2

CPE	Versions	Role	Vendor
cpe:2.3:a:amazon:kiro_ide::::::::	before 1.0.228	Vulnerable	AWS
cpe:2.3:o:microsoft:windows:-:::::::*	not specified by NVD	Running on	Microsoft

cpe:2.3:a:amazon:kiro_ide:*:*:*:*:*:*:*:* Versions before 1.0.228 Vulnerable ·AWS
cpe:2.3:o:microsoft:windows:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Microsoft

Remediation

No fixed version listed by the sources yet.

Timeline

2026-10-02 Threatist record created from CVE-2026-18656
2026-10-03 Alias added: GHSA-hhmj-6g9r-9vvq

References

Patch 1

https://kiro.dev/changelog/ide/1-0/#patch-1-0-228

Advisory 1

https://aws.amazon.com/security/security-bulletins/2026-074-aws/

TI-2026-09109 Kiro IDE Insufficient File Write Restrictions to Execution-Sensitive Paths CVSS 4.0HIGH 8.6
TI-2026-00611 Command Injection in Kiro GitLab Merge Request Helper CVSS 4.0HIGH 8.4
TI-2026-60464 Kiro IDE Sensitive Workspace Data Exfiltration via Agent-Written Workspace Configuration CVSS 4.0MEDIUM 6.7

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences