MI6 @ukic/canary-web-components 3.0.0-canary.12 before 3.0.0-canary.48 DOM XSS via ic-tree-item

Advisories

MI6 @ukic/canary-web-components 3.0.0-canary.12 before 3.0.0-canary.48 DOM XSS via ic-tree-item

Severity: low
Date: 10/19/2026
Affecting: Intelligence Community UI Kit canary web components >= 3.0.0-canary.12, < 3.0.0-canary.48
CVE: CVE-2026-112290
CWE: CWE-79 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
CVSS: 2.3
CVSS V4 Vector: CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:P/VC:L/VI:L/VA:N/SC:L/SI:L/SA:N
References: https://github.com/aaronamran/Public-Vulnerability-Disclosures/blob/main/2026/dom-xss-mi6-ic-ui-kit/README.md
https://github.com/mi6/ic-ui-kit/commit/e0eb0f16597dcb994a75c5230cd9243647ad7b3d
https://github.com/mi6/ic-ui-kit/blob/7b32c7c2b53b74a915f40984fb7b0a2d825fc49c/packages/canary-web-components/src/components/ic-tree-item/ic-tree-item.tsx
Credit: Aaron Amran Bin Amiruddin (@aaronamran)
Description: Intelligence Community UI Kit @ukic/canary-web-components 3.0.0-canary.12 before 3.0.0-canary.48 contains a DOM-based cross-site scripting vulnerability in ic-tree-item that re-parses router-item slot text as HTML. When tree item truncation is enabled, attackers who influence a tree item label can have escaped markup decoded by truncateTreeItemLabel() and executed as JavaScript in visitors' browsers.

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