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CVE-2026-34055

OpenEMR has IDOR in Patient Notes Web UI allows unauthorized note access/modification

Published: Mar 25, 2026Updated: Mar 26, 2026 Sources: CVE List NVDCWE-639
NVD MITRE
8.1CVSSHIGH
EPSS Score
0.3%
Top 82.0%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available

Description

OpenEMR is a free and open source electronic health records and medical practice management application. Prior to version 8.0.0.3, the legacy patient notes functions in `library/pnotes.inc.php` perform updates and deletes using `WHERE id = ?` without verifying that the note belongs to a patient the user is authorized to access. Multiple web UI callers pass user-controlled note IDs directly to these functions. This is the same class of vulnerability as CVE-2026-25745 (REST API IDOR), but affects the web UI code paths. Version 8.0.0.3 patches the issue.

CVSS Vector Breakdown

AV:NAC:LPR:LUI:NS:UC:HI:HA:N
Exploitability
AV:NAttack Vector
Network
AC:LAttack Complexity
Low
PR:LPrivileges Required
Low
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:HConfidentiality
High
I:HIntegrity
High
A:NAvailability
None
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Weaknesses

CWE-639

Affected Products

openemropenemr
On-premWeb App
Enterprise Software / itsm-monitoring
openemropen-emr
On-premWeb App
Enterprise Software / document-mgmt
openemross-projectEnterprise Softwareaka openemr/openemr, openemr
open-emross-projectUSEnterprise Softwareaka openemr

Attack Graph

Products CVE Techniques Tactics

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Exploitability

Official Patch Available

MITRE ATT&CK

1 technique
Initial Access
View detailed technique mapping

References

https://github.com/openemr/openemr/security/advisories/GHSA-8gj5-r8vm-mghq
github.com
https://github.com/openemr/openemr/commit/214c9b4585a6f1c8c22750172d47f0e258fec0bf
github.com
https://github.com/openemr/openemr/releases/tag/v8_0_0_3
github.com

Timeline

Published
Mar 25, 2026
Last Updated
Mar 26, 2026

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