What’s Vulnerable › Vulnerabilities

CVE-2026-102475

• Severity: medium (CVSS 5.9 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.3% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-10-15 · updated 2026-10-20
• Weakness: CWE-770

Description

In Eclipse Vert.x versions [5.0.0,5.0.12] or [5.1.0,5.1.9] or [5.2.0, 5.2.0], the HTTP proxy provides a body transformer interceptor that relies on a max buffered bytes limit to ensure a bounded buffer for each request. This can be used to force a server to indefinitely allocate heap. This vulnerability requires to use an intercepting body transformer. The impacted component is io.vertx:vertx-http-proxy.

Affected products

• Eclipse Foundation Eclipse Vert.x: from 5.0.0 before 5.1.10; 5.2.0 — fixed in 5.1.10

How to fix

Upgrade to a fixed version: Eclipse Foundation Eclipse Vert.x 5.1.10. Check the vendor advisory for mitigations.

References

• https://github.com/eclipse-vertx/vertx-http-proxy/security/advisories/GHSA-mjwh-5qfp-hjgc
• https://gitlab.eclipse.org/security/cve-assignment/-/work_items/351

Get alerted when CVE-2026-102475 or the next vulnerability affects your stack