CVE-2026-59328 Cross-Site Scripting in Eclipse Spring Boot Starter Wizard Dependency Tooltips

Medium 4.2 Published 30 Jul 2026 Updated 30 Jul 2026

Attackers can execute arbitrary scripts in the Eclipse IDE embedded browser via compromised Initializr endpoints, enabling UI spoofing and network beaconing.

Exploited in the wild: Not known
Login needed: Not needed
Attackable: Over the internet
Victim action needed: A user has to click or open something
Fix: None listed

What is CVE-2026-59328?

CVE-2026-59328 is a medium-severity cross-site scripting vulnerability in Spring Tools for Eclipse, published on 30 Jul 2026. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.

Official description

Spring Tools for Eclipse renders Spring Boot starter wizard dependency tooltips in a native embedded browser (SWT Browser) with JavaScript enabled. Using untrusted and compromised Initializr endpoints for the Spring Boot starter wizard can result in arbitrary script execution inside the embedded browser when a developer hovers a dependency checkbox in the New Spring Starter Project wizard. Impact is limited to in-IDE UI spoofing and outbound network beaconing rather than full code execution. Affected Spring Products and Versions: Spring Tools for Eclipse: 5.2.0 and earlier

Weakness: CWE-79

Which versions are affected by CVE-2026-59328?

It affects 1 product.

Products include Broadcom Spring Tools.

How do I fix CVE-2026-59328?

No fix has been published for CVE-2026-59328 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-2026-59328 being exploited?

There is no known exploitation of CVE-2026-59328 in the wild and no public exploit code.

Sources

Also known as GHSA-xf7f-942v-xgqh.