OpenEMR from 7.0.1 before 8.4.0 contains a flaw in src/Common/Auth/OneTimeAuth.php that ignores the enforce_onetime_use and max_access_count flags, never revokes consumed service_auth tokens, and checks login_pin without rate limiting or strict comparison. Attackers holding a captured token can replay it or brute-force the PIN to open patient-portal sessions exposing PHI.

Attack Vector Network

Attack Complexity Low

Privileges Required None

Attack Requirements None

User Interaction None

Vulnerable System Confidentiality Impact High

Vulnerable System Integrity Impact High

Vulnerable System Availability Impact High

Subsequent System Confidentiality Impact None

Subsequent System Integrity Impact None

Subsequent System Availability Impact None

Attack Vector Network

Attack Complexity Low

Privileges Required None

Scope Unchanged

Confidentiality Impact High

Integrity Impact High

Availability Impact High

User Interaction None

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

No EPSS score available.

Key SSVC decision points have not yet been added.

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions
openemr openemr unaffected
Version Status Constraints
7.0.1 affected < 8.4.0
8.4.0 unaffected —

No data.

No data.

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Project Subscriptions

Vendors Products
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Advisories

No advisories yet.

Fixes

Solution

No solution given by the vendor.

Workaround

No workaround given by the vendor.

References
Link Providers
https://github.com/openemr/openemr/security/advisories/GHSA-xg3m-9pfq-c8r6 cve-icon cve-icon
https://www.vulncheck.com/advisories/openemr-7.0.1-before-8.4.0-onetimeauth-token-replay-and-pin-brute-force cve-icon cve-icon
History

Sun, 08 Nov 2026 13:30:00 +0000

Type Values Removed Values Added
Description OpenEMR from 7.0.1 before 8.4.0 contains a flaw in src/Common/Auth/OneTimeAuth.php that ignores the enforce_onetime_use and max_access_count flags, never revokes consumed service_auth tokens, and checks login_pin without rate limiting or strict comparison. Attackers holding a captured token can replay it or brute-force the PIN to open patient-portal sessions exposing PHI.
Title OpenEMR 7.0.1 before 8.4.0 OneTimeAuth Token Replay and PIN Brute Force
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

{'score': 9.8, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H'}

cvssV4_0

{'score': 9.3, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N'}

Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: VulnCheck

Published:

Updated: 2026-11-08T13:15:37.304Z

Reserved: 2026-11-08T02:14:31.305Z

Link: CVE-2026-124445

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Received

Published: 2026-11-08T14:18:11.487

Modified: 2026-11-08T14:18:11.487

Link: CVE-2026-124445

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-11-08T14:30:16Z

Weaknesses