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HIGH severity

CVE-2026-126469 — Openemr

HIGH

CVE-2026-126469 is a high-severity (CVSS 8.8) CWE-862 vulnerability. The records list no fixed version yet; check the vendor advisory below and apply the mitigations in the meantime.

OpenEMR before 8.5.0 contains a missing authorization vulnerability in several custom/ scripts that rely only on session authentication and never call AclMain::aclCheckCore(). Any authenticated…

Published
Updated
Affected
—
Patched
—
Exploits
None indexed
Exploitation data as of Nov 13, 2026 · OSV.dev, NVD, FIRST.org (EPSS)

EPSS Exploitation Probability

via FIRST.org ↗
0.6%probability of exploitation in next 30 days
Lower Risk0.00%
Lower risk than most CVEs47th percentile — riskier than 47% of all scored CVEsHighest risk

Probability of exploitation in the next 30 days, from FIRST.org EPSS.

How urgent is this, really

Where this sits among everything scored

Description

OpenEMR before 8.5.0 contains a missing authorization vulnerability in several custom/ scripts that rely only on session authentication and never call AclMain::aclCheckCore(). Any authenticated low-privilege user can request export_labworks.php, chart_tracker.php, or export_registry_xml.php to disclose patient SSN, DOB, and insurance data or provider NPI/tax IDs, and forge chart-tracker records.

Detection & mitigation playbook

Vulnerability

  1. Detect

    Identify every host running the affected component and compare the installed build against the fixed version below — for source-built or distro-packaged software the version string, not a lockfile, is the source of truth (`dpkg -l`, `rpm -q`, or the binary's own `--version`).

  2. Remediation status

    The records we use list no fixed release for CVE-2026-126469. Check the upstream advisory for a patched version, and apply the exposure-reduction steps below in the meantime.

  3. Mitigate without a patch

    Put an independent control in front of the weakness: restrict the affected endpoint or interface to trusted networks, require an additional authentication factor or proxy-level check, and invalidate existing sessions and credentials in case the flaw has already been used.

Frequently Asked Questions

OpenEMR before 8.5.0 contains a missing authorization vulnerability in several custom/ scripts that rely only on session authentication and never call AclMain::aclCheckCore(). Any authenticated low-privilege user can request export_labworks.php, chart_tracker.php, or export_registry_xml.php to disclose patient SSN, DOB, and insurance data or provider NPI/tax IDs, and forge chart-tracker records.
O3 Security · Impact-Aware SCA

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