PT-2026-26344 · Openemr · Openemr

Simecek · Published 2026-03-19 · Updated 2026-03-23 · CVE-2026-33302

Positive Technologies (AI Summary)

CVSS v4.0

8.6

High

Base vector

AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N

Name of the Vulnerable Software and Affected Versions OpenEMR versions prior to 8.0.0.2

Description OpenEMR is an electronic health records and medical practice management application. A flaw exists in the module Access Control List (ACL) function AclMain::zhAclCheck(). The function only verifies the existence of "allow" permissions for users or groups, neglecting to check for explicit "deny" permissions. This allows administrators to be unable to 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.

Recommendations Update to version 8.0.0.2 or later.

Exploit

Fix

Incorrect Authorization

Weakness Enumeration

CWE-863

Related Identifiers

BDU:2026-05086

CVE-2026-33302

GHSA-V68V-PWC4-8P2M

Affected Products

Openemr

References · 8

• 🔥 https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/33xxx/CVE-2026-33302.json · Exploit
• https://github.com/openemr/openemr/security/advisories/GHSA-v68v-pwc4-8p2m · Vendor Advisory
• https://github.com/openemr/openemr/commit/0ef9b1763029e52d43fcb4fd0ebb0769a7ec43d4 · Patch
• https://bdu.fstec.ru/vul/2026-05086 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2026-33302 · Security Note
• https://osv.dev/vulnerability/CVE-2026-33302 · Vendor Advisory
• https://twitter.com/CVEnew/status/2035992551350546852 · Twitter Post
• https://twitter.com/VulmonFeeds/status/2034780136915046538 · Twitter Post