PT-2026-37437 · Eclipse Foundation+1 · Eclipse Vert.X+1

Jihun Kim · Published 2026-05-06 · Updated 2026-05-09 · CVE-2026-6860

Positive Technologies (AI Summary)

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

Name of the Vulnerable Software and Affected Versions The product name cannot be determined (affected versions not specified)

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. For example, if the server is configured with a certificate accepting *.example.com, any XYZ.example.com where xyz is a valid name can be used.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Exploit

Related Identifiers

CVE-2026-6860

GHSA-3G76-F9XQ-8VP6

Affected Products

Eclipse Vert.X

Io.Vertx:Vertx-Core

References · 11

• 🔥 https://gitlab.eclipse.org/security/vulnerability-reports/-/issues/381 · Exploit
• https://nvd.nist.gov/vuln/detail/CVE-2026-6860 · Security Note
• https://osv.dev/vulnerability/GHSA-3g76-f9xq-8vp6 · Vendor Advisory
• https://github.com/eclipse-vertx/vert.x/security/advisories/GHSA-3g76-f9xq-8vp6 · Note
• https://github.com/eclipse-vertx/vert.x/pull/6102 · Note
• https://github.com/eclipse-vertx/vert.x · Note
• https://twitter.com/CVEnew/status/2051997178810560645 · Twitter Post
• https://twitter.com/VulmonFeeds/status/2051974590860054607 · Twitter Post
• https://t.me/CVEtracker/52846 · Telegram Post
• https://twitter.com/dailycve/status/2052954201517429116 · Twitter Post
• https://twitter.com/infoflowcloud/status/2051998036952322093 · Twitter Post