Vulnerability · Published Oct 1, 2026 · Assigned by GitHub_M
CVE-2026-55083DHIS2: Unsafe Java Deserialization - Remote Code Execution (RCE)
Critical 9.1
In plain English
A critical-severity unsafe deserialization in dhis2-core from dhis2. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.6% (higher than 48% of all known vulnerabilities).
Severity (CVSS 3.1)9.1Critical
Exploit odds (30 days)0.6%top 52.4% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
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.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| dhis2 | dhis2-core | >= 2.42.0, < 2.42.5.1>= 2.43.0, < 2.43.0.1 |
Weakness: CWE-502 · Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H
References
- https://github.com/dhis2/dhis2-core/security/advisories/GHSA-3fr2-wvqx-cmr5 x_refsource_CONFIRM
- https://github.com/dhis2/dhis2-core/releases/tag/2.42.5.1 x_refsource_MISC
- https://github.com/dhis2/dhis2-core/releases/tag/2.43.0.1 x_refsource_MISC