VulnerabilityAnalyzed
CVE-2026-6860
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…
MEDIUM 6.9EPSS 0.24%
Does this matter?
Lower severity and a low EPSS score (0.24%). Track it; it rarely justifies an emergency change on its own.
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.
- CVSS 4.0
- 6.9 MEDIUMCVSS: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/M
- EPSS
- 0.24% probability · 15th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-770, CWE-295
- Affected
- eclipse/vert.x
- Source
- emo@eclipse.org
References
- https://github.com/eclipse-vertx/vert.x/pull/6102Issue Tracking, Patch
- https://github.com/eclipse-vertx/vert.x/security/advisories/GHSA-3g76-f9xq-8vp6Exploit, Vendor Advisory
- https://gitlab.eclipse.org/security/vulnerability-reports/-/issues/381Exploit, Issue Tracking, Third Party Advisory
- https://gitlab.eclipse.org/security/vulnerability-reports/-/issues/381Exploit, Issue Tracking, Third Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.