CVE-2026-55083 DHIS2: Unsafe Java Deserialization - Remote Code Execution (RCE)
Remote attackers can execute arbitrary code on DHIS2 servers by exploiting unsafe Java deserialization vulnerabilities.
- Exploited in the wild
- Not known
- Login needed
- An administrator
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-55083?
CVE-2026-55083 is a critical unsafe deserialization vulnerability in dhis2-core, published on 1 Oct 2026. An attacker needs administrator access to exploit it, with no action from the victim.
Official 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.
Weakness: CWE-502
Which versions are affected by CVE-2026-55083?
How do I fix CVE-2026-55083?
No fix has been published for CVE-2026-55083 yet. Limit exposure of the affected software until one is available.
Upgrade, and only deserialise data from trusted sources or with an allow-list of types. More about Unsafe deserialization.
Is CVE-2026-55083 being exploited?
There is no known exploitation of CVE-2026-55083 in the wild and no public exploit code.
Sources
Also known as GHSA-3fr2-wvqx-cmr5.