OpenEMR before 8.5.0 lacks rate limiting or lockout on TOTP submission, allowing attackers with a valid password to brute-force the 6-digit MFA code. Attackers can script repeated POST requests to main_screen.php or the OAuth2 authorization flow with re-submitted hidden credentials to bypass two-factor authentication.
Metrics
Affected Vendors & Products
Advisories
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Fixes
Solution
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Workaround
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References
History
Fri, 13 Nov 2026 09:45:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Description | OpenEMR before 8.5.0 lacks rate limiting or lockout on TOTP submission, allowing attackers with a valid password to brute-force the 6-digit MFA code. Attackers can script repeated POST requests to main_screen.php or the OAuth2 authorization flow with re-submitted hidden credentials to bypass two-factor authentication. | |
| Title | OpenEMR before 8.5.0 TOTP Brute Force via main_screen.php and OAuth2 | |
| First Time appeared |
Open-emr
Open-emr openemr |
|
| Weaknesses | CWE-307 | |
| CPEs | cpe:2.3:a:open-emr:openemr:*:*:*:*:*:*:*:* | |
| Vendors & Products |
Open-emr
Open-emr openemr |
|
| References |
| |
| Metrics |
cvssV3_1
|
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MITRE
Status: PUBLISHED
Assigner: VulnCheck
Published:
Updated: 2026-11-13T09:35:10.666Z
Reserved: 2026-11-10T21:39:26.377Z
Link: CVE-2026-126454
Vulnrichment
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NVD
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Redhat
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OpenCVE Enrichment
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Weaknesses