CVE-2026-25927Public exploitNetwork attack vector

Cross-patient DICOM state access via unchecked document IDs

Published Feb 25, 2026 · Updated Feb 25, 2026

Authorization bypass in OpenEMR before 8.0.0 allows remote authenticated users to read or modify other patients' DICOM viewer state. The view_action and retrieve_action methods in controllers/C_Document.class.php load request-supplied doc_id values without binding each document to patient_id or checking patient or encounter ACLs. Access to the DICOM viewer endpoint is required; enumerating document IDs exposes or alters annotations, view settings, PHI, and imaging metadata.

CVSS severity7.1
High
EPSS probability0.20%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Authorization bypass in OpenEMR before 8.0.0 allows remote authenticated users to read or modify other patients' DICOM viewer state. The view_action and retrieve_action methods in controllers/C_Document.class.php load request-supplied doc_id values without binding each document to patient_id or checking patient or encounter ACLs. Access to the DICOM viewer endpoint is required; enumerating document IDs exposes or alters annotations, view settings, PHI, and imaging metadata.

The record

CVE
CVE-2026-25927
Published
Feb 25, 2026
Updated
Feb 25, 2026
Vendor
OpenEMR Foundation
Product
OpenEMR
Classifications
CWE-639, T1190
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Feb 25, 2026CVE publishedPublication date reported by the CVE source.
  2. Feb 25, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=< 8.0.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

OpenEMR Foundation · OpenEMRversion=< 8.0.0

Published CVSS scores

7.1GitHub, Inc.CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-639Authorization Bypass Through User-Controlled Key
T1190Exploit Public-Facing Application

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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