CVE-2026-6860

State: Published
Severity: 6.9 Medium
Published: May 6, 2026
Updated: May 12, 2026
Reserved: Apr 22, 2026

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.

Scores

CVSS	Score	Vector	Source
4.0	6.9 Medium	CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:L	eclipse

Weaknesses

CWE-295 Improper Certificate Validation

Affected Products

Product	Versions
Eclipse Vert.xEclipse Foundation	4.3.4 through 4.5.26Affected 5.0.0 through 5.0.11Affected

References

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

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