Vulnerability details

CVE-2026-24890

openemr openemr

OpenEMR Portal Users Can Forge Provider Signatures

CVSS 3.1

8.1High

Official description

OpenEMR is a free and open source electronic health records and medical practice management application. Prior to version 8.0.0, an authorization bypass vulnerability in the patient portal signature endpoint allows authenticated portal users to upload and overwrite provider signatures by setting `type=admin-signature` and specifying any provider user ID. This could potentially lead to signature forgery on medical documents, legal compliance violations, and fraud. The issue occurs when portal users are allowed to modify provider signatures without proper authorization checks. Version 8.0.0 fixes the issue.

CVSS scores

Score	Version	Source	Vector
8.1High	3.1	CVEProject cvelistV5 (CNA) (GitHub_M)	`CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N`

Affected products

Vendor	Product	Versions	Source
openemr	openemr	< 8.0.0	CVEProject cvelistV5 (CNA)

References and advisories

https://github.com/openemr/openemr/commit/a29c0f7ac0975429a85cd09a3ff12ee0dcdb4478 x_refsource_MISC
https://github.com/openemr/openemr/security/advisories/GHSA-xc8x-mfh8-9xvh x_refsource_CONFIRM

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Details

Published: 2026-02-25
Last updated: 2026-02-26
State: Published
Assigner (CNA): GitHub_M

Exploit prediction (EPSS)

0.27%

Probability of exploitation in 30 days

20.2%

Percentile (among all CVEs)

SSVC assessment (CISA)

Automatable: No
Exploitation: Proof of concept
Technical impact: Total

Weaknesses (CWE)

CWE-285
Improper Authorization