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CVE-2026-126453 OpenEMR before 8.5.0 Inverted Document Expiration Check Exposes PHI via FHIR Binary

7.1 highEPSS 0.4%

High (7.1) in openemr openemr. EPSS 0.4% estimated probability of exploitation activity in the next 30 days.

On this page
OpenEMR before 8.5.0 contains an inverted comparison in Document::has_expired() that causes the FHIR Binary download endpoint to treat time-limited PHI documents as unexpired after their one-hour lifetime. Authenticated users still authorized for a Binary/{id} resource can download expired bulk export NDJSON files and $docref CCDs indefinitely.

Severity

CVSS 4.0

7.1 high
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

CVSS 3.1

6.5 medium
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
EPSS
0.4% estimated probability of exploitation activity in the next 30 days; 30th percentile. Scored 2026-11-13. A forecast for this CVE across the internet, not for your own systems.
CWE
CWE-613 Insufficient Session Expiration deprecated by MITRE see CWE-1463, CWE-1464
OWASP Top 10
A07:2025 Authentication Failures
Published
Modified
Assigned by
VulnCheck (CNA)
NVD analysis
Awaiting analysis
Record from
the NVD, synced

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Affected

Versions

From the CNA's record in the CVE List.

ProductAffected
openemrbefore 8.5.0

References

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