CVE-2026-6860A 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.
Updated under an hour ago ()
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It affects Eclipse Foundation Eclipse Vert.x and 1 other product. Add what you run to find out whether that includes you.
No exploitation reported and no EPSS estimate yet.
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Free account, 1 product
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
- 6.9 MEDIUM (v4.0, CNA)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
- Weakness (CWE)
- CWE-295
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- eclipse
- NVD analysis
- Analyzed
- Record last updated
- May 12, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
Eclipse Foundation Eclipse Vert.x eclipse_foundation:eclipse_vert.x (from the name) | from 4.3.4 through 4.5.26; from 5.0.0 through 5.0.11 | CNA record |
eclipse vert.x eclipse:vert.x | from 4.3.4 through 4.5.26; from 5.0.0 through 5.0.11 | NVD |
References
- https://gitlab.eclipse.org/security/vulnerability-reports/-/issues/381exploit, issue-tracking, third-party-advisory
- https://github.com/eclipse-vertx/vert.x/security/advisories/GHSA-3g76-f9xq-8vp6exploit, vendor-advisory
- https://github.com/eclipse-vertx/vert.x/pull/6102issue-tracking, patch
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.