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 valid name can be used.
- CVSS 4.0
- 6.9
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 - CVSS 3.1
- 5.3
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L - EPSS
- 0.2% chance of exploitation in the next 30 days; higher than 14% of CVEs (scores of 2026-10-26)
- CWEs
- CWE-770, CWE-295
- Published
- Modified
- Record from
- the NVD, synced
Affected
- eclipse:vert.x
Packages (OSV)
| Advisory | Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|---|
| GHSA-3g76-f9xq-8vp6 | Maven | io.vertx:vertx-core | >=4.3.4 <=4.3.8 | no fix published |
| GHSA-3g76-f9xq-8vp6 | Maven | io.vertx:vertx-core | >=4.4.0 <=4.4.9 | no fix published |
| GHSA-3g76-f9xq-8vp6 | Maven | io.vertx:vertx-core | >=4.5.0 <4.5.27 | 4.5.27 |
| GHSA-3g76-f9xq-8vp6 | Maven | io.vertx:vertx-core | >=5.0.0 <5.0.12 | 5.0.12 |