CVE-2026-55083
Received Received - Intake

Remote Code Execution in DHIS2 via Java Deserialization

Publication date: 2026-10-01

Last updated on: 2026-10-01

Assigner: GitHub, Inc.

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.

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Meta Information

Published
2026-10-01
Last Modified
2026-10-01
Generated
2026-10-01
AI Q&A
2026-10-01
EPSS Evaluated
N/A
NVD
CVE-2026-55083
EUVD
EUVD-2026-91002

Affected Vendors & Products

Showing 2 associated CPEs
Vendor Product Version / Range
dhis2 dhis2 From 2.42.0 (inc) to 2.42.5.1 (exc)
dhis2 dhis2 From 2.43.0 (inc) to 2.43.0.1 (exc)

Helpful Resources

Exploitability

CWE
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KEV
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CWE ID Description
CWE-502 The product deserializes untrusted data without sufficiently ensuring that the resulting data will be valid.

Attack-Flow Graph

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Executive Summary

CVE-2026-55083 is a critical vulnerability in DHIS2, a data management system. It allows remote code execution (RCE) through unsafe Java deserialization. This flaw affects versions 2.42.0 to before 2.42.5.1 and 2.43.0 to before 2.43.0.1.

Impact Analysis

An attacker could exploit this to execute arbitrary code on the affected system. This could lead to data breaches, system compromise, or unauthorized access. The high CVSS score (9.1) indicates severe potential impact on confidentiality, integrity, and availability.

Compliance Impact

This vulnerability could lead to unauthorized data access or exfiltration, violating GDPR's data protection requirements and HIPAA's safeguards for protected health information. Non-compliance risks include fines, legal action, and reputational damage.

Mitigation Strategies

Upgrade DHIS2 to patched versions 2.42.5.1, 2.43.0.1, or 2.44 (after PR #24162) immediately to address the unsafe Java deserialization RCE vulnerability.

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