PT-2026-37437 · Eclipse Foundation · Eclipse Vert.X

Jihun Kim · Published 2026-05-06 · Updated 2026-05-06 · CVE-2026-6860

NVD

CVSS v4.0

6.9

Medium

Base vector

AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:L/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

A TCP client can perform a TLS handshake and present the server name extension with a server name that is accepted by a server wildcard name, e.g. if the server is configured with a certificate accepting *.example.com, any XYZ.example.com where xyz is a valid name can be used.

Fix

Related Identifiers

CVE-2026-6860

Affected Products

Eclipse Vert.X

References · 4

• https://nvd.nist.gov/vuln/detail/CVE-2026-6860 · Security Note
• https://github.com/eclipse-vertx/vert.x/pull/6102 · Note
• https://github.com/eclipse-vertx/vert.x/security/advisories/GHSA-3g76-f9xq-8vp6 · Note
• https://gitlab.eclipse.org/security/vulnerability-reports/-/issues/381 · Note