---
id: "CVE-2026-112290"
kind: "vulnerability"
aliases: ["CVE-2026-112290"]
title: "UKIC canary web components: DOM XSS in ic-tree-item labels"
severity: "medium"
cvss: 4.7
epss: null
exploited: false
status: "open"
category: "package"
products: []
ecosystems: []
tags: ["frontend", "javascript", "package", "web-components"]
not_affected_if: ["default-config", "no-user-controlled-labels"]
published_at: "2026-10-19T14:17:07+00:00"
first_seen_at: "2026-10-23T21:57:18+00:00"
updated_at: "2026-10-25T04:35:17+00:00"
sources: [{"source": "nvd", "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-112290", "first_seen_at": "2026-10-23T21:57:18+00:00"}]
---

# UKIC canary web components: DOM XSS in ic-tree-item labels

The @ukic/canary-web-components package re-parses tree item label text as HTML when truncation is enabled, so escaped markup gets decoded and runs as JavaScript. An attacker who can influence a tree item label can run script in a visitor's browser.

_Summary, check and fix written by a model from the sources; labelled as such._

## How to check

- Run `npm ls @ukic/canary-web-components` to find the installed version.
- Check whether the app enables tree item truncation on `ic-tree-item` and whether labels come from user-influenced data.

## Fix

- Upgrade `@ukic/canary-web-components` to `3.0.0-canary.48` or later.

## Timeline

- 2026-10-23T21:57:18+00:00 nvd https://nvd.nist.gov/vuln/detail/CVE-2026-112290

## From the sources

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.

---

_Free to read at a human pace. An API with keys and an MCP server are in preparation; early access: hello@infrastack.ai_