Deserialization Vulnerability in alldatacenter alldata by alldatacenter
CVE-2026-19826

6.9MEDIUM

Key Information:

Vendor

Alldatacenter

Status
Alldata
Vendor
CVE Published:
14 August 2026

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2026-19826?

A vulnerability has been identified in alldatacenter alldata version 0.6.8, impacting the Hessian2Input.readObject function within the /serialize/impl/HessianSerializer.java file of the xxl-rpc Listener component. This deserialization issue allows remote attackers to manipulate data, leading to potential unauthorized actions. The exploit has been made public, and the project has closed the issue report as 'not planned' without any further details, highlighting the urgency for users to secure their systems against potential attacks.

Affected Version(s)

alldata 0.6.0

alldata 0.6.1

alldata 0.6.2

Exploit Proof of Concept (PoC)

PoC code is written by security researchers to demonstrate the vulnerability can be exploited. PoC code is also a key component for weaponization which could lead to ransomware.

CVE-2026-19826 - Proof of Concept

References

https://vuldb.com/vuln/389959
vdb-entrytechnical-description
https://vuldb.com/vuln/389959/cti
signaturepermissions-required
https://vuldb.com/cve/CVE-2026-19826
third-party-advisory

CVSS V4

Score:
6.9
Severity:
MEDIUM
Confidentiality:
Low
Integrity:
Low
Availability:
Low
Attack Vector:
Network
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
None

Timeline

  • 🟡

    Public PoC available

  • 👾

    Exploit known to exist

  • Vulnerability published

  • Vulnerability Reserved

Credit

fakebug (VulDB User)
VulDB CNA Team
.