OpenEMR before 8.3.0 Missing Authorization and IDOR in Prior-Authorizations Module
Only affects OpenEMR before 8.3.0 where the oe-module-prior-authorizations module is installed and enabled. Fixed in OpenEMR 8.3.0.
Written by anthropic/claude-haiku-5.5 from the sources below. Verify against them.
- Exploited
- No known exploitation
- Fix
- Fixed in 8.3.0
- Who is exposed
- Specific setups only
Do first: Check whether your setup matches what the bug needs. The oe-module-prior-authorizations module is installed and enabled OpenEMR versions before 8.3.0
- Last modified
- A 0-100 score for how much a CVE matters across the industry: exploitation, exposure, how widely the software is used, severity and whether a fix exists.What do these mean? →
- 15/100 · provisional
- How many real-world setups can hit the bug, from the vendor's advisory and CISA data. It does not know your setup.What do these mean? →
- Specific setups only
- Whether working attack code is public (Exploit-DB, Metasploit, Nuclei or GitHub). Public code makes attacks easier.What do these mean? →
- None on Exploit-DB, Metasploit or GitHub
Summary
OpenEMR before 8.3.0 contains missing authorization and insecure direct object reference vulnerabilities in the oe-module-prior-authorizations module that allow authenticated low-privilege users to access and modify other patients' records. Attackers can request public/reports/list_report.php to view all patients' names, MRNs, insurance and prior-auth data, or submit arbitrary id values to public/index.php to overwrite other patients' prior-authorization records.
cve.now Index
- Exploitation?/40Unknown. No CISA SSVC exploitation rating yet
- Exposure8/25Specific setups only, reachable over the network
- Reach?/20Unknown. No tracked technology or package matched
- Severity7.1/10CVSS 7.1
- No patch0/5No signal
What would change the score
- Would score about 65 if added to CISA KEV
- Would score about 60 if CISA's SSVC rates exploitation active
- Would score about 22 if CISA's SSVC rates it automatable
What to do
Check whether your setup matches what the bug needs.
The oe-module-prior-authorizations module is installed and enabled OpenEMR versions before 8.3.0Upgrade to a fixed version: 8.3.0.
Timeline
- CVE published
- First seen by cve.now
Affected versions
- openemr openemr
fixed in 8.3.0
Evidence 2
- Advisory
- Link
Corrections
None so far.
Something wrong on this page? Report an error. Every fix is listed here.
Questions about CVE-2026-124456
Is CVE-2026-124456 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: cve.now feed data
What does this mean?
Authenticated low-privilege users can view other patients' names, MRNs, insurance and prior-authorization data, and can overwrite other patients' prior-authorization records. The flaws are missing authorization checks and insecure direct object references in the prior-authorizations module.Source: github.com, vulncheck.com
Which versions are affected by CVE-2026-124456?
openemr: before 8.3.0.Source: cve.now feed data
Am I affected, and how do I check?
OpenEMR versions before 8.3.0 are affected, but only when the oe-module-prior-authorizations module is installed and enabled. To check, confirm the installed OpenEMR version and whether that module is installed and enabled.Source: github.com, vulncheck.com
How do I fix CVE-2026-124456?
Upgrade to OpenEMR 8.3.0 or later, which contains the fix.Source: github.com, vulncheck.com