CVE-2026-6860

Description

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.

References

• https://github.com/eclipse-vertx/vert.x/pull/6102
• https://github.com/eclipse-vertx/vert.x/security/advisories/GHSA-3g76-f9xq-8vp6
• https://gitlab.eclipse.org/security/vulnerability-reports/-/issues/381
• https://gitlab.eclipse.org/security/vulnerability-reports/-/issues/381