CVE-2026-33302

HIGH

8.1

Description

OpenEMR is a free and open source electronic health records and medical practice management application. Prior to 8.0.0.2, the module ACL function `AclMain::zhAclCheck()` only checks for the presence of any "allow" (user or group). It never checks for explicit "deny" (allowed=0). As a result, administrators cannot revoke access by setting a user or group to "deny"; if the user is in a group that has "allow," access is granted regardless of explicit denies. Version 8.0.0.2 fixes the issue.

CVE Details

CVSS v3.1 Score8.1

SeverityHIGH

CVSS VectorCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N

Attack VectorNETWORK

ComplexityLOW

Privileges RequiredLOW

User InteractionNONE

Published3/19/2026

Last Modified3/20/2026

Sourcenvd

Honeypot Sightings0

Affected Products

open-emr:openemr

Weaknesses (CWE)

CWE-863

References

https://github.com/openemr/openemr/commit/0ef9b1763029e52d43fcb4fd0ebb0769a7ec43d4(security-advisories@github.com)

https://github.com/openemr/openemr/security/advisories/GHSA-v68v-pwc4-8p2m(security-advisories@github.com)

IOC Correlations

No correlations recorded

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