CVE-2026-102469 Eclipse Vert.x - Insecure Deserialization

Eclipse Vert.x versions [4.0.0, 4.5.34], [5.0.0, 5.0.12], [5.1.0, 5.1.9], and 5.2.0 contain an insecure deserialization vulnerability in vertx-db2-client caused by deserializing UDT column data without filtering, letting a malicious or MITM DRDA server execute remote code or cause DoS, exploit requires attacker-controlled DRDA server or MITM position.

CVSS base score 9.2 /10
Critical
CISA KEV
Not listed
Public exploit
None known
Authentication
Not required
View the NVD record ↗

Details

Type
Insecure Deserialization
Impact
Remote Code Execution, Denial Of Service
CVSS vector
CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/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
15 October 2026
Updated
15 October 2026
Weakness
CWE-502

Vendor fix

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

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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