CVE-2026-6860

A flaw was found in eclipse-vertx/vert.x. A remote attacker can exploit this vulnerability by performing a Transport Layer Security (TLS) handshake and presenting a server name extension with a server wildcard name. This can lead to a denial of service (DoS) condition, impacting the availability of the affected system.

This flaw is rated as Moderate because a remote attacker can trigger a denial of service in Red Hat products that use eclipse-vertx/vert.x and are configured with TLS wildcard server names. Exploitation occurs during the TLS handshake, impacting service availability without affecting data confidentiality or integrity.

The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.

Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base, or stability.