CVE-2026-126494

{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-126494", "assignerOrgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10", "state": "PUBLISHED", "assignerShortName": "VulnCheck", "dateReserved": "2026-11-10T21:45:21.807Z", "datePublished": "2026-11-13T09:34:41.832Z", "dateUpdated": "2026-11-13T09:34:41.832Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10", "shortName": "VulnCheck", "dateUpdated": "2026-11-13T09:34:41.832Z"}, "datePublic": "2026-10-28T00:00:00.000Z", "title": "OpenEMR before 8.4.0 Privilege Escalation via SMART/OAuth Scope Finalization", "descriptions": [{"lang": "en", "value": "OpenEMR before 8.4.0 contains an improper authorization vulnerability in ScopeRepository::finalizeScopes() that allows read-only SMART/OAuth clients to obtain write scopes because ScopeEntity::containsScope() ignores registered permissions. Attackers with a client registered for user/<resource>.read can request user/<resource>.write to create, update, and delete appointments or patient data."}], "problemTypes": [{"descriptions": [{"lang": "en", "description": "Incorrect Authorization", "cweId": "CWE-863", "type": "CWE"}]}], "affected": [{"vendor": "openemr", "product": "openemr", "defaultStatus": "unaffected", "versions": [{"version": "0", "status": "affected", "versionType": "semver", "lessThan": "8.4.0"}, {"version": "8.4.0", "status": "unaffected", "versionType": "semver"}]}], "cpeApplicability": [{"nodes": [{"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": true, "criteria": "cpe:2.3:a:open-emr:openemr:*:*:*:*:*:*:*:*", "versionEndExcluding": "8.4.0"}]}]}], "metrics": [{"format": "CVSS", "cvssV4_0": {"version": "4.0", "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:H/VA:L/SC:N/SI:N/SA:N", "attackVector": "NETWORK", "attackComplexity": "LOW", "attackRequirements": "NONE", "privilegesRequired": "LOW", "userInteraction": "NONE", "vulnConfidentialityImpact": "NONE", "vulnIntegrityImpact": "HIGH", "vulnAvailabilityImpact": "LOW", "subConfidentialityImpact": "NONE", "subIntegrityImpact": "NONE", "subAvailabilityImpact": "NONE", "baseScore": 7.1, "baseSeverity": "HIGH"}}, {"format": "CVSS", "cvssV3_1": {"version": "3.1", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:L", "attackVector": "NETWORK", "attackComplexity": "LOW", "privilegesRequired": "LOW", "userInteraction": "NONE", "scope": "UNCHANGED", "confidentialityImpact": "NONE", "integrityImpact": "HIGH", "availabilityImpact": "LOW", "baseScore": 7.1, "baseSeverity": "HIGH"}}], "references": [{"url": "https://github.com/openemr/openemr/security/advisories/GHSA-6cmr-r2rh-755m", "tags": ["vendor-advisory"], "name": "GitHub Security Advisory (GHSA-6cmr-r2rh-755m)"}, {"name": "VulnCheck Advisory: OpenEMR before 8.4.0 Privilege Escalation via SMART/OAuth Scope Finalization", "tags": ["third-party-advisory"], "url": "https://www.vulncheck.com/advisories/openemr-before-8.4.0-privilege-escalation-via-smart-oauth-scope-finalization"}], "credits": [{"lang": "en", "value": "christos-cantina-security", "type": "reporter"}, {"lang": "en", "value": "kojiromike", "type": "remediation developer"}, {"lang": "en", "value": "mcspicyenjoyer", "type": "finder"}], "x_generator": {"engine": "vulncheck-endgame"}}}}

{}

{}

{}

{}