CVE-2026-102476 Eclipse Vert.x - Misconfiguration

Eclipse Vert.x versions 5.0.0 to 5.0.12, 5.1.0 to 5.1.9, and 5.2.0 contain an insecure SSL context caching caused by improper SSL property handling in the Vert.x HTTP client, letting attackers obtain SSL contexts with weaker security properties, exploit requires client to request SSL context.

CVSS base score 9.1 /10
Critical
CISA KEV
Not listed
Public exploit
None known
Authentication
Not required
View the NVD record ↗

Details

Type
Misconfiguration
Impact
Man In The Middle
CVSS vector
CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N/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
Published
14 October 2026
Updated
15 October 2026

Vendor fix

Update to a version later than 5.2.0 or the latest available version.

Patching closes this CVE. It does not tell you which of your systems run the affected version, or what else is exposed alongside them.

References

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