Quick answers
- Is CVE-2026-124479 exploited in the wild?
- No. Junglewise Threat Intelligence has no report of CVE-2026-124479 being exploited in the wild.
- How severe is CVE-2026-124479?
- Medium severity, with a CVSS score of 6.5, published 8 November 2026.
- Which products and versions are affected?
- OpenEMR Project OpenEMR before 8.4.0.
- Is there a fix for CVE-2026-124479?
- Yes: fixed in 8.4.0. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
- How is CVE-2026-124479 attacked?
- It is attacked over the network, in a web application.
- Am I affected by CVE-2026-124479?
- Check whether you run OpenEMR Project OpenEMR at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.
How to fix
- Fixed in: 8.4.0
Technical details
The vulnerability exists in the REST document download service where the controller passes attacker-controlled document bytes directly to Symfony's BinaryFileResponse as a filesystem path rather than as content. An authenticated user with document upload and download privileges can upload a document with an absolute pathname (e.g., /path/to/sqlconf.php) as its body; when retrieved, the REST handler interprets this string as a file path and streams the referenced file instead of the uploaded content. This requires prior authentication and document access permissions.
Affected products
- OpenEMR Project OpenEMR before 8.4.0
Timeline
- 2026-09-13: disclosed: GitHub Security Advisory (GHSA-xgxv-36g2-hq5g) published
- 2026-11-08: advisory