CVE-2026-67610Public exploitNetwork attack vectorHinoki check available

Unauthorized FHIR access via self-supplied client keys

Published Aug 3, 2026 · Updated Aug 3, 2026

Improper authentication in OpenEMR through 8.2.0 allows unauthenticated attackers to register clients with system-level FHIR scopes. The dynamic registration endpoint accepts an attacker-controlled RSA public key in jwks and binds the requested scopes to the new client. An administrator must approve that client before its matching private key can obtain tokens that read every patient's FHIR resources.

CVSS severity8.6
High
EPSS probability0.33%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkAvailable
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Summary

What happened

Improper authentication in OpenEMR through 8.2.0 allows unauthenticated attackers to register clients with system-level FHIR scopes. The dynamic registration endpoint accepts an attacker-controlled RSA public key in jwks and binds the requested scopes to the new client. An administrator must approve that client before its matching private key can obtain tokens that read every patient's FHIR resources.

The record

CVE
CVE-2026-67610
Published
Aug 3, 2026
Updated
Aug 3, 2026
Vendor
OpenEMR Foundation
Product
OpenEMR
Classifications
CWE-306, T1550.001
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Aug 3, 2026CVE publishedPublication date reported by the CVE source.
  2. Aug 3, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=0 <=8.2.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

OpenEMR Foundation · OpenEMRversion=0 <=8.2.0

Published CVSS scores

8.6VulnCheckCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N
8.1VulnCheckCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-306Missing Authentication for Critical Function
T1550.001Application Access Token

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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