Medium severity · published Mar 25, 2026
CVE-2026-34055
OpenEMR has IDOR in Patient Notes Web UI allows unauthorized note access/modification
6.3
CVSS
0.3%
EPSS
No
On KEV
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
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L
Attack vector
Network
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
Low
Integrity
Low
Availability
Low
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.3% · higher than 20% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
OP
openemr · openemr
< 8.0.0.3 · source: vendor, NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-34055
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-34055
Patch
https://github.com/openemr/openemr/commit/214c9b4585a6f1c8c22750172d47f0e258fec0bf
Product
https://github.com/openemr/openemr/releases/tag/v8_0_0_3
Vendor Advisory
https://github.com/openemr/openemr/security/advisories/GHSA-8gj5-r8vm-mghq
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