What’s Vulnerable › Vulnerabilities

CVE-2026-112290: MI6 @ukic/canary-web-components 3.0.0-canary.12 before 3.0.0-canary.48 DOM XSS via ic-tree-item

• Severity: medium (CVSS 4.7 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.2% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-10-19 · updated 2026-10-19
• Weakness: CWE-79

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.

Affected products

• MI6 Intelligence Community UI Kit canary web components: from 3.0.0-canary.12 before 3.0.0-canary.48 — fixed in 3.0.0-canary.48

How to fix

Upgrade to a fixed version: MI6 Intelligence Community UI Kit canary web components 3.0.0-canary.48. Check the vendor advisory for mitigations.

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/blob/7b32c7c2b53b74a915f40984fb7b0a2d825fc49c/packages/canary-web-components/src/components/ic-tree-item/ic-tree-item.tsx
• https://github.com/mi6/ic-ui-kit/commit/e0eb0f16597dcb994a75c5230cd9243647ad7b3d
• https://www.vulncheck.com/advisories/mi6-ukic-canary-web-components-3.0.0-canary.12-before-3.0.0-canary.48-dom-xss-via-ic-tree-item

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