MEDIUM
CVE-2026-6860
Published: May 6, 2026· Updated: May 12, 2026
5.3
CVSS v3.1
EPSS:0.02%probability of exploitation in 30 daysPercentile:6.4th
Official 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.
Technical Analysis
CVE-2026-6860 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.
The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.
CVSS v3.1 Vector Breakdown
Exploitability
Attack VectorNetwork
Attack ComplexityLow
Privileges Req.None
User InteractionNone
ScopeUnchanged
Impact
ConfidentialityNone
IntegrityNone
AvailabilityLow
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
Affected Vendors & Products
eclipse1 product
vert.x
Source: NVD CPE · 1 total CPE entries
Exploit & PoC Resources
NO KNOWN EXPLOITNo public exploit confirmed at this time
Exploit-DB
Offensive Security exploit database
GitHub PoC Search
Community PoC repositories
Rapid7 / Metasploit
Metasploit module search
PacketStorm
Security advisories & exploits
NVD Detail
Official NIST entry
MITRE CVE
CVE Program entry
External links open in a new tab. Always verify in a controlled environment before use.
Official Patches & Advisories
All References (4)
→
https://github.com/eclipse-vertx/vert.x/pull/6102Issue Tracking · Patch
→
https://github.com/eclipse-vertx/vert.x/security/advisories/GHSA-3g76-f9xq-8vp6Vendor Advisory · Exploit
→
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
Quick Facts
CVE IDCVE-2026-6860
CVSS Score5.3 / 10
SeverityMEDIUM
CISA KEVNo
EPSS (30d)0.02%
Affected1 vendor
PublishedMay 6, 2026
Recommended Actions
- →Apply vendor patches immediately
- →Monitor CVE-2026-6860 in threat intel feeds
- →Review IDS/IPS signatures for exploitation attempts
Data sourced from NVD (NIST), CISA KEV, and EPSS (FIRST). Analysis generated by CTIWATCH.COM. CVE data is provided under the NVD usage policy.