CVE-2026-126434 json
OpenEMR before 8.5.0 Missing Authorization in Procedure Order Form
published 18d ago modified 2d ago also EUVD-2026-125009 , GHSA-q5c6-96vf-rx9v
Unreviewed: the maintainers' own advisory
Published by the maintainers on their GitHub repository openemr/openemr. GitHub has not reviewed it into the GitHub Advisory Database, so the affected packages and versions are the maintainers' word. Read the full advisory on GitHub.
- cvss
- 8.1
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.3%
- EPSS 0.3% chance of exploitation in 30 days, percentile 26%
- public exploits
- 0
- none known
Summary
OpenEMR before 8.5.0 contains a missing authorization vulnerability in interface/forms/procedure_order/common.php that allows authenticated accounts lacking patients/lab permission to read and modify other patients' procedure orders. Attackers can request a global order id to disclose clinical history, or select the target patient in their session and submit bn_save to falsify diagnoses, instructions, and order status.
Patch / fix
- openemr openemr 8.5.0
Is CVE-2026-126434 in your stack? Fencer shows which of your repositories are affected as soon as an advisory lands, and opens the fix as a pull request.
Check with FencerExploit prediction
0.33% chance of exploitation in the next 30 days, higher than 26% of all scored CVEs (FIRST EPSS, 2026-11-14).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 4.0 | 8.6 | CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N |
| CNA | 3.1 | 8.1 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N |
| CNA | 4.0 | 8.6 | CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/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 |
| NVD | 3.1 | 8.1 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N |
Affected products
- openemr openemr
Classification
- Weakness
-
- CWE-862 Missing Authorization
References
-
github.com
/openemr/openemr/security/advisories/GHSA-q5c6-96vf-rx9v
vendor-advisory, advisory
-
vulncheck.com
/advisories/openemr-before-8.5.0-missing-authorization-in-procedure-order-form
third-party-advisory
Sources
- CVE List CVE-2026-126434
- NVD CVE-2026-126434
- Maintainer advisory GHSA-q5c6-96vf-rx9v
Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.
The maintainers of openemr/openemr published their own advisory on GitHub. Reviewed sources take precedence over it.