CVE-2026-115573: openemr Auth Bypass

Description

OpenEMR is a free and open source electronic health records and medical practice management application. Prior to 8.3.0, library/classes/Controller.class.php allows explicit controller.php dispatch to controllers missing from CONTROLLER_ACL_MAP, and checkControllerAcl() returns without enforcing any permission for those entries. A low-privilege authenticated user can invoke C_X12Partner::edit_action_process() to create or alter insurance-routing hosts and credentials, or invoke C_PatientFinder::find_action_process() to enumerate patient names, dates of birth, and identifiers. The shared fail-open dispatcher root cause also exposes other administrative controllers that were intended to be reached through ACL-gated Practice Settings routes. This issue is fixed in version 8.3.0.

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CVSS v3.1 Score

8.1

HIGH

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N

EPSS — Exploit Prediction

0.0038

Probability of exploitation

0.33%

Percentile rank

EPSS estimates the probability that this vulnerability will be exploited in the wild within the next 30 days. A higher score means more likely to be exploited.

Weakness Type (CWE)

CWE-862 Missing Authorization

Affected Products

Vendor	Product	Versions
open-emr	openemr	< 8.3.0

References

Advisories & Patches

https://github.com/openemr/openemr/commit/64f8491d850b2e22ed4fceb14fa67e27fef62cd1 https://github.com/openemr/openemr/pull/13565 https://github.com/openemr/openemr/security/advisories/GHSA-9rj4-fxmj-c4r7 https://github.com/openemr/openemr/security/advisories/GHSA-9rj4-fxmj-c4r7

Exploits

https://github.com/openemr/openemr/security/advisories/GHSA-9rj4-fxmj-c4r7 https://github.com/openemr/openemr/security/advisories/GHSA-9rj4-fxmj-c4r7

Other References

https://github.com/openemr/openemr/releases/tag/v8_3_0

Frequently Asked Questions

What is CVE-2026-115573? +

OpenEMR is a free and open source electronic health records and medical practice management application. Prior to 8.3.0, library/classes/Controller.class.php allows explicit controller.php dispatch to controllers missing from CONTROLLER_ACL_MAP, and checkControllerAcl() returns without enforcing any permission for those entries. A low-privilege authenticated user can invoke C_X12Partner::edit_action_process() to create or alter insurance-routing hosts and credentials, or invoke C_PatientFinder::find_action_process() to enumerate patient names, dates of birth, and identifiers. The shared fail-open dispatcher root cause also exposes other administrative controllers that were intended to be reached through ACL-gated Practice Settings routes. This issue is fixed in version 8.3.0. It has a CVSS v3.1 base score of 8.1 (HIGH).

How severe is CVE-2026-115573? +

CVE-2026-115573 has a CVSS v3.1 score of 8.1 out of 10, rated HIGH. This is a high-severity vulnerability that should be prioritized for patching. The EPSS score is 0.0038, placing it in the 0th percentile for exploitation probability.

What products are affected by CVE-2026-115573? +

CVE-2026-115573 affects products from open-emr, specifically: openemr. Check the affected products table above for specific version ranges.

How do I check if I'm vulnerable to CVE-2026-115573? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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