{"containers": {"cna": {"affected": [{"product": "keycloak", "vendor": "n/a", "versions": [{"status": "affected", "version": "keycloak 12.0.0"}]}], "descriptions": [{"lang": "en", "value": "A flaw was found in Keycloak before version 12.0.0 where it is possible to update the user's metadata attributes using Account REST API. This flaw allows an attacker to change its own NameID attribute to impersonate the admin user for any particular application."}], "problemTypes": [{"descriptions": [{"cweId": "CWE-250", "description": "CWE-250", "lang": "en", "type": "CWE"}]}], "providerMetadata": {"dateUpdated": "2021-05-28T10:20:30.000Z", "orgId": "53f830b8-0a3f-465b-8143-3b8a9948e749", "shortName": "redhat"}, "references": [{"tags": ["x_refsource_MISC"], "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1905089"}], "x_legacyV4Record": {"CVE_data_meta": {"ASSIGNER": "secalert@redhat.com", "ID": "CVE-2020-27826", "STATE": "PUBLIC"}, "affects": {"vendor": {"vendor_data": [{"product": {"product_data": [{"product_name": "keycloak", "version": {"version_data": [{"version_value": "keycloak 12.0.0"}]}}]}, "vendor_name": "n/a"}]}}, "data_format": "MITRE", "data_type": "CVE", "data_version": "4.0", "description": {"description_data": [{"lang": "eng", "value": "A flaw was found in Keycloak before version 12.0.0 where it is possible to update the user's metadata attributes using Account REST API. This flaw allows an attacker to change its own NameID attribute to impersonate the admin user for any particular application."}]}, "problemtype": {"problemtype_data": [{"description": [{"lang": "eng", "value": "CWE-250"}]}]}, "references": {"reference_data": [{"name": "https://bugzilla.redhat.com/show_bug.cgi?id=1905089", "refsource": "MISC", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1905089"}]}}}, "adp": [{"providerMetadata": {"orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2024-08-04T16:25:43.149Z"}, "title": "CVE Program Container", "references": [{"tags": ["x_refsource_MISC", "x_transferred"], "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1905089"}]}]}, "cveMetadata": {"assignerOrgId": "53f830b8-0a3f-465b-8143-3b8a9948e749", "assignerShortName": "redhat", "cveId": "CVE-2020-27826", "datePublished": "2021-05-28T10:20:30.000Z", "dateReserved": "2020-10-27T00:00:00.000Z", "dateUpdated": "2024-08-04T16:25:43.149Z", "state": "PUBLISHED"}, "dataType": "CVE_RECORD", "dataVersion": "5.1"}

{}

{"affected": [{"affectedData": [{"product": "keycloak", "vendor": "n/a", "versions": [{"status": "affected", "version": "keycloak 12.0.0"}]}], "source": "secalert@redhat.com"}], "configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:a:redhat:keycloak:*:*:*:*:*:*:*:*", "matchCriteriaId": "859EC983-D6F0-42B2-A6B0-B3887FE4CC00", "versionEndExcluding": "12.0.0", "vulnerable": true}], "negate": false, "operator": "OR"}]}, {"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:a:redhat:single_sign-on:-:*:*:*:text-only:*:*:*", "matchCriteriaId": "341E6313-20D5-44CB-9719-B20585DC5AD6", "vulnerable": true}, {"criteria": "cpe:2.3:a:redhat:single_sign-on:7.4:*:*:*:*:*:*:*", "matchCriteriaId": "F62A7110-16D5-4633-A521-9CECD267773B", "vulnerable": true}, {"criteria": "cpe:2.3:a:redhat:single_sign-on:7.4.4:*:*:*:*:*:*:*", "matchCriteriaId": "1381D570-D7C3-4B89-B52A-5948ED624124", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "A flaw was found in Keycloak before version 12.0.0 where it is possible to update the user's metadata attributes using Account REST API. This flaw allows an attacker to change its own NameID attribute to impersonate the admin user for any particular application."}, {"lang": "es", "value": "Se encontr\u00f3 un fallo en Keycloak versiones anteriores a 12.0.0, donde es posible actualizar los atributos de metadatos del usuario usando la API REST de la cuenta. Este fallo permite a un atacante cambiar su propio atributo NameID para hacerse pasar por el usuario administrador de cualquier aplicaci\u00f3n en particular"}], "id": "CVE-2020-27826", "lastModified": "2026-06-17T03:09:41.610", "metrics": {"cvssMetricV2": [{"acInsufInfo": false, "baseSeverity": "MEDIUM", "cvssData": {"accessComplexity": "MEDIUM", "accessVector": "NETWORK", "authentication": "SINGLE", "availabilityImpact": "NONE", "baseScore": 4.9, "confidentialityImpact": "PARTIAL", "integrityImpact": "PARTIAL", "vectorString": "AV:N/AC:M/Au:S/C:P/I:P/A:N", "version": "2.0"}, "exploitabilityScore": 6.8, "impactScore": 4.9, "obtainAllPrivilege": false, "obtainOtherPrivilege": false, "obtainUserPrivilege": false, "source": "nvd@nist.gov", "type": "Primary", "userInteractionRequired": false}], "cvssMetricV31": [{"cvssData": {"attackComplexity": "HIGH", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 4.2, "baseSeverity": "MEDIUM", "confidentialityImpact": "LOW", "integrityImpact": "LOW", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:N", "version": "3.1"}, "exploitabilityScore": 1.6, "impactScore": 2.5, "source": "nvd@nist.gov", "type": "Primary"}]}, "published": "2021-05-28T11:15:07.670", "references": [{"source": "secalert@redhat.com", "tags": ["Issue Tracking", "Vendor Advisory"], "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1905089"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Issue Tracking", "Vendor Advisory"], "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1905089"}], "sourceIdentifier": "secalert@redhat.com", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-250"}], "source": "secalert@redhat.com", "type": "Secondary"}]}

{"acknowledgement": "This issue was discovered by Marek Posolda (Red Hat).", "affected_release": [{"advisory": "RHSA-2020:5526", "cpe": "cpe:/a:redhat:red_hat_single_sign_on:7::el6", "package": "rh-sso7-keycloak-0:9.0.10-1.redhat_00001.1.el6sso", "product_name": "Red Hat Single Sign-On 7.4 for RHEL 6", "release_date": "2020-12-15T00:00:00Z"}, {"advisory": "RHSA-2020:5527", "cpe": "cpe:/a:redhat:red_hat_single_sign_on:7::el7", "package": "rh-sso7-keycloak-0:9.0.10-1.redhat_00001.1.el7sso", "product_name": "Red Hat Single Sign-On 7.4 for RHEL 7", "release_date": "2020-12-15T00:00:00Z"}, {"advisory": "RHSA-2020:5528", "cpe": "cpe:/a:redhat:red_hat_single_sign_on:7::el8", "package": "rh-sso7-keycloak-0:9.0.10-1.redhat_00001.1.el8sso", "product_name": "Red Hat Single Sign-On 7.4 for RHEL 8", "release_date": "2020-12-15T00:00:00Z"}, {"advisory": "RHSA-2020:5533", "cpe": "cpe:/a:redhat:red_hat_single_sign_on", "package": "keycloak", "product_name": "Text-Only RHSSO", "release_date": "2020-12-15T00:00:00Z"}], "bugzilla": {"description": "keycloak: Account REST API can update user metadata attributes", "id": "1905089", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1905089"}, "csaw": false, "cvss3": {"cvss3_base_score": "4.2", "cvss3_scoring_vector": "CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:N", "status": "verified"}, "cwe": "CWE-250", "details": ["A flaw was found in Keycloak before version 12.0.0 where it is possible to update the user's metadata attributes using Account REST API. This flaw allows an attacker to change its own NameID attribute to impersonate the admin user for any particular application.", "A flaw was found in Keycloak before version 12.0.0 where it is possible to update the user's metadata attributes using Account REST API. This flaw allows an attacker to change its own NameID attribute to impersonate the admin user for any particular application."], "name": "CVE-2020-27826", "public_date": "2020-12-07T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2020-27826\nhttps://nvd.nist.gov/vuln/detail/CVE-2020-27826"], "threat_severity": "Low"}

{}