Is CVE-2026-55083 exploited in the wild?

No. Junglewise Threat Intelligence has no report of CVE-2026-55083 being exploited in the wild.

How severe is CVE-2026-55083?

Critical severity, with a CVSS score of 9.1, published 1 October 2026.

Which products and versions are affected?

DHIS2 2.42.0 to 2.42.5.0; 2.43.0 to 2.43.0.0.

Is there a fix for CVE-2026-55083?

Yes: fixed in DHIS2 2.42.5.1, 2.43.0.1, 2.44. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.

How is CVE-2026-55083 attacked?

It is attacked over the network, in a web application.

Am I affected by CVE-2026-55083?

Check whether you run DHIS2 at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

CVE-2026-55083: DHIS2 remote code execution via unsafe deserialization

CVE-2026-55083 · Severity: critical · CVSS 9.1 · Published 2026-10-01

DHIS2 is a flexible health information system used by organizations worldwide to manage health data, analytics, and reporting. Attackers can exploit unsafe Java deserialization in affected versions to execute arbitrary code remotely and gain complete control over the system, compromising all data and operations.

Vendors: DHIS2.

Quick answers

Is CVE-2026-55083 exploited in the wild?: No. Junglewise Threat Intelligence has no report of CVE-2026-55083 being exploited in the wild.
How severe is CVE-2026-55083?: Critical severity, with a CVSS score of 9.1, published 1 October 2026.
Which products and versions are affected?: DHIS2 2.42.0 to 2.42.5.0; 2.43.0 to 2.43.0.0.
Is there a fix for CVE-2026-55083?: Yes: fixed in DHIS2 2.42.5.1, 2.43.0.1, 2.44. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
How is CVE-2026-55083 attacked?: It is attacked over the network, in a web application.
Am I affected by CVE-2026-55083?: Check whether you run DHIS2 at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

How to fix

Fixed in: DHIS2 2.42.5.1, 2.43.0.1, 2.44

Technical details

DHIS2 versions 2.42.0 through 2.42.5.0 and 2.43.0 through 2.43.0.0 contain an unsafe Java deserialization vulnerability that allows remote code execution. The vulnerability is reachable over the network without authentication requirements. A successful exploit grants arbitrary code execution with the privileges of the DHIS2 application process.

Affected products

DHIS2 DHIS2 2.42.0 to 2.42.5.0; 2.43.0 to 2.43.0.0

Timeline

2026-10-01: disclosed

References

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