OpenEMR before 8.5.0 contains an authorization bypass vulnerability in portal/lib/download_template.php that allows any authenticated core user to render documents for arbitrary patients by setting isModule. Attackers can submit arbitrary pid and template_id values to disclose patient names, birth dates, chart IDs, addresses, allergies, medications, and problem lists despite ACL and squad restrictions.
{
"cna_assigner": "VulnCheck",
"cwe_ids": [
"CWE-639"
],
"osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/126xxx/CVE-2026-126437.json"
}{
"extracted_events": [
{
"range": [
{
"introduced": "0"
},
{
"fixed": "8.5.0"
}
],
"source": "AFFECTED_FIELD",
"strategy": "StandardRange"
}
]
}