OpenEMR before 8.4.0 Arbitrary File Read via REST Document Download
Affects OpenEMR before 8.4.0 for authenticated users with document upload and download access. Fixed in 8.4.0.
Written by anthropic/claude-haiku-5.5 from the sources below. Verify against them.
- Exploited
- No known exploitation
- Fix
- Fixed in 8.4.0
- Who is exposed
- Specific setups only
Do first: Check whether your setup matches what the bug needs. OpenEMR versions before 8.4.0 Attacker needs document upload and download access
- 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 8.4.0 contains an arbitrary local file read vulnerability in REST document download, where the controller passes stored uploaded document bytes to Symfony's BinaryFileResponse as a filesystem path instead of returning them as content. Authenticated users with document upload and download access can upload a document containing an absolute pathname, such as the sqlconf.php location, then download it to read server files and recover database credentials.
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.
OpenEMR versions before 8.4.0 Attacker needs document upload and download accessUpgrade to a fixed version: 8.4.0.
Timeline
- CVE published
- First seen by cve.now
Affected versions
- openemr openemr
fixed in 8.4.0
Evidence 2
- Advisory
- Link
Corrections
None so far.
Something wrong on this page? Report an error. Every fix is listed here.
Questions about CVE-2026-124479
Is CVE-2026-124479 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?
An authenticated user with document upload and download access can use the REST document download to read files on the server. The stated impact includes reading sqlconf.php, recovering database credentials, and broader patient data compromise.Source: vulncheck.com, github.com
Which versions are affected by CVE-2026-124479?
openemr: before 8.4.0.Source: cve.now feed data
Am I affected, and how do I check?
The listed range is OpenEMR versions before 8.4.0. The stated condition is an authenticated user with document upload and download access, so installs in that range where such users exist fall within the reported scope.Source: vulncheck.com, github.com
How do I fix CVE-2026-124479?
Upgrade OpenEMR to 8.4.0, the listed fixed version. The facts list no workaround.Source: vulncheck.com, github.com