CVE-2026-40076

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Source

https://cve.org/CVERecord?id=CVE-2026-40076

Import Source

https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-40076.json

JSON Data

https://api.osv.dev/v1/vulns/CVE-2026-40076

Aliases

GHSA-78fc-9688-w8xw

Published

2026-05-06T19:32:13.851Z

Modified

2026-07-15T01:48:50.694888646Z

Severity

9.4 (Critical) CVSS_V4 - CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H CVSS Calculator

Summary

OpenMRS Core arbitrary file write and code execution via Zip Slip in module upload

Details

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 /openmrs/ws/rest/v1/module is vulnerable to a Zip Slip path traversal attack. During automatic extraction of uploaded .omod archives in WebModuleUtil.startModule(), 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 web/module/../../../../malicious.jsp 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.allowwebadmin 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.

Database specific

{
    "cwe_ids": [
        "CWE-22"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/40xxx/CVE-2026-40076.json",
    "cna_assigner": "GitHub_M"
}

References

Affected packages

Git / github.com/openmrs/openmrs-core

Affected ranges

Type

GIT

Repo

https://github.com/openmrs/openmrs-core

Events

Introduced

Last affected

83eca7987cfe76235c149a434d054f61ba2ac0c3

Introduced

83fb6f380fb96e040998e8efc7e3b293b3a26946

Last affected

02eec598d1b5588c7e6e17eb5282f8652bbc258c

Database specific

{
    "cpe": "cpe:2.3:a:openmrs:openmrs:*:*:*:*:*:*:*:*",
    "extracted_events": [
        {
            "introduced": "0"
        },
        {
            "last_affected": "2.7.8"
        },
        {
            "introduced": "2.8.0"
        },
        {
            "last_affected": "2.8.5"
        }
    ],
    "source": "CPE_RANGE"
}

Affected versions

1.*

1.1.0

1.2.0

1.2.01

1.2.01-RC1

1.3.0-RC1

1.3.0-RC2

1.3.0-RC3

1.3.0-RC4

2.*

2.2.0-20181112.082045-243

2.4.0-alpha

2.7.0

2.7.0-alpha

2.7.0-beta

2.7.1

2.7.2

2.7.4

2.7.5

2.7.7

2.7.8

2.8.0

2.8.1

2.8.2

2.8.3

2.8.4

2.8.5

Database specific

source

"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-40076.json"