CVE-2026-40076
OpenMRS Core is an open source electronic medical record system platform.
Published May 6, 2026 · updated Jun 17, 2026 · openmrs openmrs
OpenMRS Core is an open source electronic medical record system platform. In versions 2.7.8 and earlier and versions 2.8.0 through 2.8.5, the module upload endpoint at POST is vulnerable to a Zip Slip path traversal attack. During automatic extraction of uploaded .omod archives in , ZIP entries under web/module/ are checked only to see whether the full entry path starts with and the remaining path is then concatenated into the destination path without normalization or a boundary check. A crafted archive can therefore include entries such as and cause files to be written outside the intended module directory. An authenticated attacker with module upload access can write arbitrary files to locations such as the web application root and achieve remote code execution by uploading a JSP file and then requesting it. The issue is compounded by the fact that the module.allow_web_admin runtime property is enforced in the legacy UI controller but not in the REST API upload path, so deployments relying on that property to block web-based module administration remain exposed through the REST endpoint. This issue has been fixed in versions after 2.7.8 in the 2.7.x line and in version 2.8.6 and later.
Code
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No public source repository is identified for this product.
Timeline
Detection, updates, and resolution for this record.
May 6, 2026 · NIST NVD
Detected
OpenMRS Core is an open source electronic medical record system platform. In versions 2.7.8 and earlier and versions 2.8.0 through 2.8.5, the module upload endpoint at POST is vulnerable to a Zip Slip path traversal attack. During automatic extraction of uploaded .omod archives in , ZIP entries under web/module/ are checked only to see whether the full entry path starts with and the remaining path
Jun 17, 2026 · NIST NVD
Updated
OpenMRS Core is an open source electronic medical record system platform. In versions 2.7.8 and earlier and versions 2.8.0 through 2.8.5, the module upload endpoint at POST is vulnerable to a Zip Slip path traversal attack. During automatic extraction of uploaded .omod archives in , ZIP entries under web/module/ are checked only to see whether the full entry path starts with and the remaining path
Affected
- cpe openmrs/openmrsversion unspecified
Sources
- CVE.orgVulnerability recordCVE-2026-40076
Official CVE identifier
cve.org - NIST NVDVulnerability recordCVE-2026-40076
OpenMRS Core is an open source electronic medical record system platform. In versions 2.7.8 and earlier and versions 2.8.0 through 2.8.5, the module upload endpoint at POST is vulnerable to a Zip Slip path traversal attack. During automatic extraction
nvd.nist.gov