Is CVE-2026-24898 actively exploited?

No active exploitation of CVE-2026-24898 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2026-24898 be exploited remotely?

Yes. CVE-2026-24898 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2026-24898?

CVE-2026-24898 has a CVSS score of 9.8 (CRITICAL).

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CRITICAL

CVE-2026-24898

CWE-287Published: March 3, 2026· Updated: Mar 4, 2026

9.8

CVSS v3.1

EPSS:0.09%probability of exploitation in 30 daysPercentile:25.9th

Official 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.

NVD Source

Technical Analysis

CVE-2026-24898 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.

A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 9.8.

From a weakness classification perspective (CWE-287): Authentication bypass vulnerabilities allow attackers to access protected resources without valid credentials.