CVE-2026-6860

[CVE catalog]

Severity

Medium · CVSS 6.9CVSS:4.0/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

Published

May 6, 2026, 9:55:12 AM UTC

Source

[NVD] · [CVE record]

EPSS

0.24% · Oct 27, 2026

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. eclipse-vertx/vert.x: eclipse-vertx/vert.x: Denial of Service via TLS handshake with wildcard server name 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.