CVE-2026-106138 Cross-Site Scripting via Chart Tooltip in KendoReact
An attacker can inject malicious JavaScript into KendoReact chart tooltips, executing code in users' browsers to compromise data confidentiality and integrity.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2026-106138?
CVE-2026-106138 is a medium-severity cross-site scripting vulnerability in Progress Software KendoReact, published on 10 Oct 2026. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.
Official description
In Progress® KendoReact (@progress/kendo-react-charts) starting with version 1.1.0 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.
Weakness: CWE-80
Which versions are affected by CVE-2026-106138?
How do I fix CVE-2026-106138?
No fix has been published for CVE-2026-106138 yet. Limit exposure of the affected software until one is available.
Escape output for the context it lands in and set a strict Content Security Policy. Upgrading the affected component is the real fix. More about Cross-site scripting.
Is CVE-2026-106138 being exploited?
There is no known exploitation of CVE-2026-106138 in the wild and no public exploit code.
Sources
Also known as GHSA-76j6-f7qm-jhqv.