6.5
MEDIUM CVSS 3.1
CVE-2026-104135
OpenEMR: Missing authorization in payment patient-search AJAX leaks patient directory and dates of birth
Description

OpenEMR is a free and open source electronic health records and medical practice management application. Prior to 8.3.0, library/ajax/payment_ajax.php validates a CSRF token but performs no AclMain authorization check before executing a wildcard search of patient_data. Any authenticated user, including a non-clinical role, can enumerate patient identifiers, full names, and dates of birth through the set_patient branch. This issue is fixed in version 8.3.0.

INFO

Published Date :

Nov. 5, 2026, 8:17 p.m.

Last Modified :

Nov. 5, 2026, 9:18 p.m.

Remotely Exploit :

Yes !
Affected Products

The following products are affected by CVE-2026-104135 vulnerability. Even if cvefeed.io is aware of the exact versions of the products that are affected, the information is not represented in the table below.

ID Vendor Product Action
1 Open-emr openemr
CVSS Scores
The Common Vulnerability Scoring System is a standardized framework for assessing the severity of vulnerabilities in software and systems. We collect and displays CVSS scores from various sources for each CVE.
Score Version Severity Vector Exploitability Score Impact Score Source
CVSS 134c704f-9b21-4f2e-91b3-4a467353bcc0
CVSS 3.1 MEDIUM [email protected]
Solution
Update OpenEMR to version 8.3.0 or later to address authorization bypass.
  • Update OpenEMR to version 8.3.0 or later.
  • Apply vendor patches for affected versions.
References to Advisories, Solutions, and Tools
CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2026-104135 is associated with the following CWEs:

Common Attack Pattern Enumeration and Classification (CAPEC)

Common Attack Pattern Enumeration and Classification (CAPEC) stores attack patterns, which are descriptions of the common attributes and approaches employed by adversaries to exploit the CVE-2026-104135 weaknesses.

We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).

Results are limited to the first 15 repositories due to potential performance issues.

The following list is the news that have been mention CVE-2026-104135 vulnerability anywhere in the article.

The following table lists the changes that have been made to the CVE-2026-104135 vulnerability over time.

Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.

  • CVE Modified by 134c704f-9b21-4f2e-91b3-4a467353bcc0

    Nov. 05, 2026

    Action Type Old Value New Value
    Added Reference https://github.com/openemr/openemr/security/advisories/GHSA-4269-grc6-qr62
    Added SSVC {'id': 'CVE-2026-104135', 'role': 'CISA Coordinator', 'options': [{'exploitation': 'poc'}, {'automatable': 'no'}, {'technicalImpact': 'partial'}], 'version': '2.0.3', 'timestamp': '2026-11-05T21:06:20.950704Z'}
  • New CVE Received by [email protected]

    Nov. 05, 2026

    Action Type Old Value New Value
    Added Description OpenEMR is a free and open source electronic health records and medical practice management application. Prior to 8.3.0, library/ajax/payment_ajax.php validates a CSRF token but performs no AclMain authorization check before executing a wildcard search of patient_data. Any authenticated user, including a non-clinical role, can enumerate patient identifiers, full names, and dates of birth through the set_patient branch. This issue is fixed in version 8.3.0.
    Added CVSS V3.1 AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
    Added CWE CWE-862
    Added Affected New affected value received. <a href="https://github.com/CVEProject/cvelistV5/blob/main/cves/2026/104xxx/CVE-2026-104135.json">CVE-2026-104135</a>
    Added Reference https://github.com/openemr/openemr/commit/7973cab3fe3f2fd2374ed71c02605e3c93491c36
    Added Reference https://github.com/openemr/openemr/pull/13200
    Added Reference https://github.com/openemr/openemr/releases/tag/v8_3_0
    Added Reference https://github.com/openemr/openemr/security/advisories/GHSA-4269-grc6-qr62
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days. Following chart shows the EPSS score history of the vulnerability.