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CVE-2026-40506

6.5 · MEDIUM

OpenEMR before 8.2.0 contains a path traversal vulnerability in the standard_tables_manage.php interface where the db GET parameter is passed without validation to temp_dir_cleanup(), which joins t…

Published Aug 17, 2026CWE-22EPSS 0.70%

Overview

CVE-2026-40506 is a medium-severity vulnerability. It was published on August 17, 2026 and has a CVSS 3.1 base score of 6.5 (MEDIUM).

This vulnerability has a CVSS 3.1 base score of 6.5, rated MEDIUM. It can be exploited remotely over the network. Some level of privileges is required for exploitation.

Technical description

OpenEMR before 8.2.0 contains a path traversal vulnerability in the standard_tables_manage.php interface where the db GET parameter is passed without validation to temp_dir_cleanup(), which joins the value to the PHP temporary directory path and recursively deletes the resulting directory. Attackers can supply a traversal sequence in the db parameter to resolve outside the intended temporary directory, and by chaining this with an open redirect in dicom_frame.php, an unauthenticated attacker can deliver a crafted URL that triggers arbitrary recursive directory deletion within an authenticated Superuser's session.

Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

References

GitHubgithub.com/openemr/openemr/commit/2d8a69f0f343c8e8c6ee1b42d224c24a7a4ba415GitHubgithub.com/openemr/openemr/pull/11951GitHubgithub.com/openemr/openemr/releases/tag/v8_2_0GitHubgithub.com/openemr/openemr/security/advisories/GHSA-hj9x-33vw-5g3xRefwww.vulncheck.com/advisories/openemr-path-traversal-arbitrary-directory-deletion-via-standard-tables-manage-phpGitHubgithub.com/openemr/openemr/security/advisories/GHSA-hj9x-33vw-5g3x

How CyberStrike helps

Frequently asked questions

What is CVE-2026-40506?

CVE-2026-40506 is a medium-severity vulnerability. It was published on August 17, 2026 and has a CVSS 3.1 base score of 6.5 (MEDIUM).

How severe is CVE-2026-40506?

This vulnerability has a CVSS 3.1 base score of 6.5, rated MEDIUM. It can be exploited remotely over the network. Some level of privileges is required for exploitation.

How do I fix or remediate CVE-2026-40506?

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2026-40506?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2026-40506 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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