CVE-2026-24898: OpenEMR has an Unauthenticated MedEx Token Disclosure
Affected: openemr · Exploitation: check available, not yet exploited
Not in CyberSIXT coverage yet: no article names this CVE. This page shows the public record.
Higher than 84% of scored CVEs
DescriptionCVE.org
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.
Affected products1
From the CVE record. A product or version that is not listed is unknown, not unaffected.
- openemr · openemr< 8.0.0
On the Atlas
Every published CVE is on the CyberSIXT Atlas, grouped by weakness, vendor and month.
- Exploitation
- Check available, not yet exploited. A public nuclei template can confirm it on a system you are authorised to test.
- CISA KEV
- Not listed
- Public check
- OpenEMR < 8.0.0 - MedEx Callback Unauthenticated Token Disclosure · nuclei template in projectdiscovery/nuclei-templates
- Vendor
- openemr
- Published
- March 2026
CoverageNo articles yet
No CyberSIXT article names CVE-2026-24898 yet, so there is no coverage timeline, action brief or change log for it. Everything on this page comes from the public CVE record, CISA KEV, EPSS and the nuclei template index. Search the archive or see the CVEs in the news.