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Vulnerabilities

Vulnerability · CVE-2026-40076

OpenMRS Core is an open source electronic medical record system platform.

Published May 6, 2026 · catalog updated Jun 17, 2026 · OpenMRS Core is an

Check if you run it

No confirmed exploitation is on record for CVE-2026-40076. EPSS is 0.90%. Act only if a listed version of OpenMRS Core is an is installed.

Gaps on this record

  • The stored product name is a package slug. The name on this page is taken from the title (OpenMRS Core is an).
  • No vendor fix or required action is stored. Compare the linked advisory before you change production.
Severity
Critical9.4
Known exploitation
Not in CISA/VulnCheck KEV
EPSS
0.90%
Remediation
Version ranges on file
Affected products
cpe openmrs/openmrs · stated 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.

Are you affected?

Enter the version you run. The result uses only the ranges stored on this record.

The check returns affected, not affected, or incomplete. It does not guess a version that is missing from the record.

  • cpe openmrs/openmrsversion unspecified
  • stated openmrs<= 2.7.8

How to fix CVE-2026-40076

What to do

Three questions, each answered from this record only. Confirm the vendor advisory before you patch.

Should you patch?

No confirmed exploitation is on record for CVE-2026-40076. EPSS is 0.90%. Act only if a listed version of OpenMRS Core is an is installed.

Which versions are affected?

Compare what you have installed with <= 2.7.8. Compare the installed version with the linked vendor advisory before you change production.

What should an analyst verify?

CWE-22: Path Traversal. EPSS 0.90%. There is no CISA KEV listing. No Exploit-DB or Metasploit reference is linked. Use the source links for the original advisory.

Code

The project this record applies to. Exploit listings stay in References.

No public source repository is identified for this product.

Timeline

Detection, updates, and resolution for this record.

  1. 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

  2. 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

Sources

  • CVE.orgVulnerability recordCVE-2026-40076

    Official CVE identifier

    cve.org
  • FIRST EPSSExploitation probabilityCVE-2026-40076

    30-day exploitation probability 0.9%

    first.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

References

Freshness

Last verified in this catalog Oct 18, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.