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CVE-2026-55083: CWE-502: Deserialization of Untrusted Data in dhis2 dhis2-core

0
Critical
VulnerabilityCVE-2026-55083cvecve-2026-55083cwe-502
Published: 10/01/2026 (10/01/2026, 18:00:05 UTC)
Source: CVE Database V5
Vendor/Project: dhis2
Product: dhis2-core

Description

DHIS2 is a flexible information system for data capture, management, validation, analytics and visualization. From versions 2.42.0 to before 2.42.5.1, and from versions 2.43.0 to before 2.43.0.1, DHIS2 is vulnerable to remote code execution (RCE) via unsafe Java deserialization. This issue has been patched in versions 2.42.5.1, 2.43.0.1, and 2.44.

CVSS v3.1

Score 9.1critical

Attack Vector
Network
Attack Complexity
Low
Privileges Required
High
User Interaction
None
Scope
Changed
Confidentiality
High
Integrity
High
Availability
High
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H

Affected software

dhis2

dhis2-core

Affected versions
>=2.42.0 <2.42.5.1>=2.43.0 <2.43.0.1
GitHub Actionsmore threats →ai
dhis2/dhis2-core
pkg:github/dhis2/dhis2-core
Affected versions
>=2.42.0 <2.42.5.1>=2.43.0 <2.43.0.1

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AI-Powered Analysis

Machine-generated threat intelligence

AILast updated: 10/01/2026, 18:46:44 UTC

Technical Analysis

The DHIS2 core product suffers from a deserialization of untrusted data vulnerability (CWE-502) in versions >=2.42.0 <2.42.5.1 and >=2.43.0 <2.43.0.1. This vulnerability enables remote code execution by exploiting unsafe Java deserialization mechanisms. The issue has been patched in versions 2.42.5.1, 2.43.0.1, and 2.44, mitigating the risk.

Potential Impact

Successful exploitation of this vulnerability allows an attacker with high privileges to execute arbitrary code remotely on the affected DHIS2 server. This can lead to complete compromise of confidentiality, integrity, and availability of the system. The CVSS 3.1 base score is 9.1 (critical), reflecting network attack vector, low attack complexity, no user interaction, and high impact on confidentiality, integrity, and availability.

Mitigation Recommendations

Upgrade affected DHIS2 instances to version 2.42.5.1, 2.43.0.1, or later (including 2.44) where the vulnerability has been patched. No other mitigations are specified. Patch status is confirmed fixed in these versions.

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Technical Details

Data Version
5.2
Assigner Short Name
GitHub_M
Date Reserved
2026-06-16T14:33:35.711Z
Cvss Version
3.1
State
PUBLISHED

Threat ID: 6abea716a43b0b3b89e139d0

Added to database: 10/01/2026, 18:31:50 UTC

Last enriched: 10/01/2026, 18:46:44 UTC

Last updated: 10/02/2026, 03:51:31 UTC

Views: 13

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