High severity7.8NVD Advisory· Published Apr 2, 2026· Updated Apr 3, 2026

CVE-2026-5429

Description

Unsanitized input during web page generation in the Kiro Agent webview in Kiro IDE before version 0.8.140 allows a remote unauthenticated threat actor to execute arbitrary code via a potentially damaging crafted color theme name when a local user opens the workspace. This issue requires the user to trust the workspace when prompted.

To remediate this issue, users should upgrade to version 0.8.140.

Patches

No patches discovered yet.

Vulnerability mechanics

AI mechanics synthesis has not run for this CVE yet.

References

aws.amazon.com/security/security-bulletins/2026-012-aws/nvd
kiro.dev/changelog/ide/0-8/nvd

News mentions

No linked articles in our index yet.

cvss	0.507
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ransomware	0.000