CVE-2026-24898
OpenEMR has an Unauthenticated MedEx Token Disclosure
Description
OpenEMR is a free and open source electronic health records and medical practice management application. Prior to 8.0.0, an unauthenticated token disclosure vulnerability in the MedEx callback endpoint allows any unauthenticated visitor to obtain the practice's MedEx API tokens, leading to complete third-party service compromise, PHI exfiltration, unauthorized actions on the MedEx platform, and HIPAA violations. The vulnerability exists because the endpoint bypasses authentication ($ignoreAuth = true) and performs a MedEx login whenever $_POST['callback_key'] is provided, returning the full JSON response including sensitive API tokens. This vulnerability is fixed in 8.0.0.
INFO
Published Date :
March 3, 2026, 10:16 p.m.
Last Modified :
March 4, 2026, 9:57 p.m.
Remotely Exploit :
Yes !
Source :
[email protected]
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS 3.1 | CRITICAL | [email protected] | ||||
| CVSS 3.1 | CRITICAL | [email protected] |
Solution
- Update OpenEMR to version 8.0.0 or later.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2026-24898.
| URL | Resource |
|---|---|
| https://github.com/openemr/openemr/commit/8e4de59ab58222f13abc4e4040128737d857db9c | Patch |
| https://github.com/openemr/openemr/security/advisories/GHSA-qwff-3mw7-7rc7 | Exploit Vendor Advisory |
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2026-24898 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-2026-24898
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-2026-24898 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2026-24898 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.
-
Initial Analysis by [email protected]
Mar. 04, 2026
Action Type Old Value New Value Added CVSS V3.1 AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H Added CPE Configuration OR *cpe:2.3:a:open-emr:openemr:*:*:*:*:*:*:*:* versions up to (excluding) 8.0.0 Added Reference Type GitHub, Inc.: https://github.com/openemr/openemr/commit/8e4de59ab58222f13abc4e4040128737d857db9c Types: Patch Added Reference Type GitHub, Inc.: https://github.com/openemr/openemr/security/advisories/GHSA-qwff-3mw7-7rc7 Types: Exploit, Vendor Advisory -
New CVE Received by [email protected]
Mar. 03, 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 8.0.0, an unauthenticated token disclosure vulnerability in the MedEx callback endpoint allows any unauthenticated visitor to obtain the practice's MedEx API tokens, leading to complete third-party service compromise, PHI exfiltration, unauthorized actions on the MedEx platform, and HIPAA violations. The vulnerability exists because the endpoint bypasses authentication ($ignoreAuth = true) and performs a MedEx login whenever $_POST['callback_key'] is provided, returning the full JSON response including sensitive API tokens. This vulnerability is fixed in 8.0.0. Added CVSS V3.1 AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H Added CWE CWE-287 Added Reference https://github.com/openemr/openemr/commit/8e4de59ab58222f13abc4e4040128737d857db9c Added Reference https://github.com/openemr/openemr/security/advisories/GHSA-qwff-3mw7-7rc7