Dashboard / CVE-2026-124451

CVE-2026-124451

MEDIUM
MEDIUM Priority: 0.01 BB Relevance: 52/100
Published: 2026-11-08 Modified: 2026-11-10 First seen: 2026-11-08 Status: active

Attack Surface

Network No Interaction Conf. Impact

CVSS Vector Breakdown

AV: Network
AC: High
PR: Low
UI: None
S: X
AT: Present
VC: High
VI: None
VA: None

Description

OpenEMR before 8.4.0 contains an authorization bypass vulnerability in its SMART on FHIR implementation because checkUserHasAccessToPatient() in BearerTokenAuthorizationStrategy.php unconditionally returns true. Authenticated users or malicious SMART apps can manipulate token launch context to bind requests to arbitrary patient UUIDs, gaining unauthorized read/write access to other patients' FHIR resources.

Weakness Classification (1)

Affected Software (2)

VendorProductVersion
openemr openemr 0 < 8.4.0
openemr openemr 0 < 8.4.0

References & Advisories (2)

Bug Bounty Relevance

52 / 100
✓ Network accessible
✓ No user interaction

CVSS Score

6.0 / 10.0 v4.0
CVSS:4.0/AV:N/AC:H/AT:P/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

EPSS — Exploitation Probability

0.25%
Raw Score 0.002460
Percentile 16.0%
Date 2026-11-13

EPSS Trend

2026-11-13
0.00246
2026-11-12
0.00246
2026-11-10
0.00246
2026-11-09
0.00246

Intelligence Sources

mitre ref →
nvd ref →

External Links