CVE-2026-19826

MEDIUM CVSS 4.0: 5.5 EPSS 0.33%
Updated Aug 18, 2026
Java
Parameter Value
CVSS 5.5 (MEDIUM)
Type CWE-20 (Improper Input Validation), CWE-502 (Deserialization of Untrusted Data)
Vendor Java
Public PoC No

A vulnerability was detected in alldatacenter alldata up to 0.6.8. This affects the function Hessian2Input.readObject of the file /serialize/impl/HessianSerializer.java of the component xxl-rpc Listener. The manipulation results in deserialization.

The attack may be performed from remote. The exploit is now public and may be used. The project closed the issue report as "not planned" without any further explanation.

Attack Parameters

Attack Vector
Network
Can be exploited remotely
Attack Complexity
Low
Easy to exploit
Attack Requirements
None
No additional conditions
Privileges Required
None
No privileges needed
User Interaction
None
No user interaction needed

Impact Assessment

Confidentiality
Low
Partial data leak
Integrity
Low
Partial data modification
Availability
Low
Partial disruption

CVSS Vector v4.0