Vulnerability-Lookup

GHSA-7H45-2J8G-37RM

Vulnerability from github – Published: 2026-08-03 18:30 – Updated: 2026-08-03 18:30

Details

OpenEMR through 8.2.0 contains an improper authentication vulnerability in the OAuth2 dynamic client registration endpoint that allows unauthenticated attackers to register a malicious client with system-level FHIR scopes by supplying a self-generated RSA keypair via the jwks field. Once an administrator approves the registered client, attackers can use the client_credentials grant with a self-signed JWT assertion to obtain access tokens granting read access to all FHIR resources across all patients in the system.

Severity

8.1 (High)


                  
                    CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N

8.6 (High)


                  
                    CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N

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JSON

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{
  "affected": [],
  "aliases": [
    "CVE-2026-67610"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-306"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-08-03T17:16:43Z",
    "severity": "HIGH"
  },
  "details": "OpenEMR through 8.2.0 contains an improper authentication vulnerability in the OAuth2 dynamic client registration endpoint that allows unauthenticated attackers to register a malicious client with system-level FHIR scopes by supplying a self-generated RSA keypair via the jwks field. Once an administrator approves the registered client, attackers can use the client_credentials grant with a self-signed JWT assertion to obtain access tokens granting read access to all FHIR resources across all patients in the system.",
  "id": "GHSA-7h45-2j8g-37rm",
  "modified": "2026-08-03T18:30:48Z",
  "published": "2026-08-03T18:30:48Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-67610"
    },
    {
      "type": "WEB",
      "url": "https://jivasecurity.com/writeups/openemr-unauth-oauth2-client-registration"
    },
    {
      "type": "WEB",
      "url": "https://www.vulncheck.com/advisories/openemr-oauth2-dynamic-client-registration-unauthorized-fhir-access"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N",
      "type": "CVSS_V3"
    },
    {
      "score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/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",
      "type": "CVSS_V4"
    }
  ]
}

CVE-2026-67610 (GCVE-0-2026-67610)

Vulnerability from cvelistv5 – Published: 2026-08-03 16:02 – Updated: 2026-08-03 16:57 X_Open Source

Title

OpenEMR 8.2.0 OAuth2 Dynamic Client Registration Unauthorized FHIR Access

Summary

Severity

8.6 (High)


                        
                          CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N

8.1 (High)


                        
                          CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N

SSVC

Exploitation: poc Automatable: no Technical Impact: total

CISA Coordinator (v2.0.3)

CWE

CWE-306 - Missing Authentication for Critical Function

Assigner

VulnCheck

References

2 references

URL	Tags
https://jivasecurity.com/writeups/openemr-unauth-…	technical-descriptionexploit
https://www.vulncheck.com/advisories/openemr-oaut…	third-party-advisory

Impacted products

1 product

Vendor	Product	Version
openemr	openemr	Affected: 0 , ≤ 8.2.0 (semver)

Date Public

2026-08-02 00:00

Credits

Jiva (JivaSecurity)

Show details on NVD website

JSON

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{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2026-67610",
                "options": [
                  {
                    "Exploitation": "poc"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "total"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-08-03T16:57:18.894461Z",
                "version": "2.0.3"
              },
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            }
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        "providerMetadata": {
          "dateUpdated": "2026-08-03T16:57:29.902Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
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      "descriptions": [
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          "lang": "en",
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            "Recovery": "NOT_DEFINED",
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            "baseScore": 8.6,
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            "vulnerabilityResponseEffort": "NOT_DEFINED"
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      },
      "references": [
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          "tags": [
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          "url": "https://jivasecurity.com/writeups/openemr-unauth-oauth2-client-registration"
        },
        {
          "tags": [
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          ],
          "url": "https://www.vulncheck.com/advisories/openemr-oauth2-dynamic-client-registration-unauthorized-fhir-access"
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    "dateReserved": "2026-07-29T21:07:39.202Z",
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Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Detection rules are retrieved from Rulezet.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.

Action not permitted

GHSA-7H45-2J8G-37RM

CVE-2026-67610 (GCVE-0-2026-67610)

Tags

Sightings

Nomenclature