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CVE-2026-24898

CRITICAL
10.0
CVSS 3.1
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.

Metadata

CVE ID
CVE-2026-24898
State
PUBLISHED
Assigner
GitHub_M
Reserved
2026-01-27 19:35 UTC
Published
2026-03-03 22:10 UTC
Last updated
2026-03-04 16:52 UTC
Primary CWE
CWE-287
CWE-287: Improper Authentication
Vendor / Product
openemr / openemr
Sources
cve.org  ·  NVD

Severity & Metrics

10.0 CRITICAL CVSS 3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
SSVC — CISA Coordinator
Exploitation
none
Automatable
yes
Tech. Impact
total
Affected products (1)
VendorProductPlatformVersions
openemr openemr — < 8.0.0
Weakness (CWE)
CWESourceDescription
CWE-287 cna CWE-287: Improper Authentication
CVSS scores (1)
ScoreSeverityVersionSourceVector
10.0 CRITICAL 3.1 cna CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
References (2)
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