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VulnerabilityPublished

CVE-2026-59328: Spring Tools for Eclipse · Cross-site Scripting

Affects Spring Tools for EclipseSource CVE Database V5

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Not known to be exploited · CVSS 4.2 Medium.

Data as of 29 Oct 2026, 07:15 UTC

CVSS 3.1 base score
4.2Medium
How severe the flaw is on the 0–10 CVSS scale.
EPSS
0.1% chance of exploitation in 30 days – higher than 6% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:L/A:N

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 30 Jul 2026

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponized: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq Mirage: no evidence on record.

    No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 29 Oct 2026.

What to do

Affected software

ProductAffectedFixed in
SpringSpring Tools for EclipseAffected
  • <=5.2.0
Fixed in–

AI-suggested

Until a fix is available, users should avoid using untrusted or compromised Initializr endpoints with the Spring Boot starter wizard in Spring Tools for Eclipse. Consider restricting network access or validating Initializr endpoints to reduce risk.

Description

CVE-2026-59328 is a cross-site scripting (XSS) vulnerability in Spring Tools for Eclipse up to version 5.2.0. It arises from rendering Spring Boot starter wizard dependency tooltips in an embedded browser with JavaScript enabled, where untrusted Initializr endpoints can inject arbitrary scripts. The impact is limited to UI spoofing within the IDE and outbound network beaconing, without full code execution.

References

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