CVE-2021-39226

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The combination of deletion and viewing enables a complete walk through all snapshot data while resulting in complete snapshot data loss. This issue has been resolved in versions 8.1.6 and 7.5.11. If for some reason you cannot upgrade you can use a reverse proxy or similar to block access to the literal paths: /api/snapshots/:key, /api/snapshots-delete/:deleteKey, /dashboard/snapshot/:key, and /api/snapshots/:key. They have no normal function and can be disabled without side effects."}], "metrics": [{"cvssV3_1": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 9.8, "baseSeverity": "CRITICAL", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H", "version": "3.1"}}], "problemTypes": [{"descriptions": [{"cweId": "CWE-287", "description": "CWE-287: Improper Authentication", "lang": "en", "type": "CWE"}]}], "providerMetadata": {"dateUpdated": "2021-10-30T01:08:52.000Z", "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "shortName": "GitHub_M"}, "references": [{"tags": ["x_refsource_CONFIRM"], "url": "https://github.com/grafana/grafana/security/advisories/GHSA-69j6-29vr-p3j9"}, {"tags": ["x_refsource_MISC"], "url": "https://github.com/grafana/grafana/commit/2d456a6375855364d098ede379438bf7f0667269"}, {"tags": ["x_refsource_MISC"], "url": "https://grafana.com/docs/grafana/latest/release-notes/release-notes-7-5-11/"}, {"tags": ["x_refsource_MISC"], "url": "https://grafana.com/docs/grafana/latest/release-notes/release-notes-8-1-6/"}, {"name": "[oss-security] 20211005 CVE-2021-39226 Grafana snapshot authentication bypass", "tags": ["mailing-list", "x_refsource_MLIST"], "url": "http://www.openwall.com/lists/oss-security/2021/10/05/4"}, {"name": "FEDORA-2021-dd83dc8b0b", "tags": ["vendor-advisory", "x_refsource_FEDORA"], "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/E6ANHRDBXQT6TURLP2THM26ZPDINFBEG/"}, {"tags": ["x_refsource_CONFIRM"], "url": "https://security.netapp.com/advisory/ntap-20211029-0008/"}, {"name": "FEDORA-2021-01588ab0bf", "tags": ["vendor-advisory", "x_refsource_FEDORA"], "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/DCKBFUSY6V4VU5AQUYWKISREZX5NLQJT/"}], "source": {"advisory": "GHSA-69j6-29vr-p3j9", "discovery": "UNKNOWN"}, "title": "Snapshot authentication bypass in grafana", "x_legacyV4Record": {"CVE_data_meta": {"ASSIGNER": "security-advisories@github.com", "ID": "CVE-2021-39226", "STATE": "PUBLIC", "TITLE": "Snapshot authentication bypass in grafana"}, "affects": {"vendor": {"vendor_data": [{"product": {"product_data": [{"product_name": "grafana", "version": {"version_data": [{"version_value": ">= 8.0.0, < 8.1.6"}, {"version_value": "< 7.5.11"}]}}]}, "vendor_name": "grafana"}]}}, "data_format": "MITRE", "data_type": "CVE", "data_version": "4.0", "description": {"description_data": [{"lang": "eng", "value": "Grafana is an open source data visualization platform. 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If for some reason you cannot upgrade you can use a reverse proxy or similar to block access to the literal paths: /api/snapshots/:key, /api/snapshots-delete/:deleteKey, /dashboard/snapshot/:key, and /api/snapshots/:key. 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If for some reason you cannot upgrade you can use a reverse proxy or similar to block access to the literal paths: /api/snapshots/:key, /api/snapshots-delete/:deleteKey, /dashboard/snapshot/:key, and /api/snapshots/:key. 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If for some reason you cannot upgrade you can use a reverse proxy or similar to block access to the literal paths: /api/snapshots/:key, /api/snapshots-delete/:deleteKey, /dashboard/snapshot/:key, and /api/snapshots/:key. They have no normal function and can be disabled without side effects."}]}, "problemtype": {"problemtype_data": [{"description": [{"lang": "eng", "value": "CWE-287: Improper Authentication"}]}]}, "data_version": "4.0", "CVE_data_meta": {"ID": "CVE-2021-39226", "STATE": "PUBLIC", "TITLE": "Snapshot authentication bypass in grafana", "ASSIGNER": "security-advisories@github.com"}}}}, "cveMetadata": {"cveId": "CVE-2021-39226", "state": "PUBLISHED", "dateUpdated": "2025-10-21T23:25:30.669Z", "dateReserved": "2021-08-16T00:00:00.000Z", "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "datePublished": "2021-10-05T17:30:11.000Z", "assignerShortName": "GitHub_M"}, "dataVersion": "5.1"}

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In affected versions unauthenticated and authenticated users are able to view the snapshot with the lowest database key by accessing the literal paths: /dashboard/snapshot/:key, or /api/snapshots/:key. If the snapshot \"public_mode\" configuration setting is set to true (vs default of false), unauthenticated users are able to delete the snapshot with the lowest database key by accessing the literal path: /api/snapshots-delete/:deleteKey. Regardless of the snapshot \"public_mode\" setting, authenticated users are able to delete the snapshot with the lowest database key by accessing the literal paths: /api/snapshots/:key, or /api/snapshots-delete/:deleteKey. The combination of deletion and viewing enables a complete walk through all snapshot data while resulting in complete snapshot data loss. This issue has been resolved in versions 8.1.6 and 7.5.11. If for some reason you cannot upgrade you can use a reverse proxy or similar to block access to the literal paths: /api/snapshots/:key, /api/snapshots-delete/:deleteKey, /dashboard/snapshot/:key, and /api/snapshots/:key. They have no normal function and can be disabled without side effects."}, {"lang": "es", "value": "Grafana es una plataforma de visualizaci\u00f3n de datos de c\u00f3digo abierto. En las versiones afectadas los usuarios no autenticados y autenticados son capaces de visualizar la snapshot con la clave de base de datos m\u00e1s baja accediendo a las rutas literales /dashboard/snapshot/:key, o /api/snapshots/:key. Si el ajuste de configuraci\u00f3n \"public_mode\" de la snapshot se establece en true (frente a default o false), unos usuarios no autenticados pueden eliminar la snapshot con la clave de base de datos m\u00e1s baja al acceder a la ruta literal /api/snapshots-delete/:deleteKey. Independientemente de la configuraci\u00f3n de \"public_mode\" de la snapshot, unos usuarios autenticados pueden eliminar la snapshot con la clave de base de datos m\u00e1s baja accediendo a las rutas literales: /api/snapshots/:key, o /api/snapshots-delete/:deleteKey. La combinaci\u00f3n de borrado y visualizaci\u00f3n permite un recorrido completo mediante todos los datos de las snapshots mientras se produce una p\u00e9rdida total de datos de las mismas. Este problema se ha resuelto en las versiones 8.1.6 y 7.5.11. Si por alguna raz\u00f3n no puede actualizar puede usar un proxy inverso o similar para bloquear el acceso a las rutas literales /api/snapshots/:key, /api/snapshots-delete/:deleteKey, /dashboard/snapshot/:key, y /api/snapshots/:key. No tienen ninguna funci\u00f3n normal y pueden ser deshabilitadas sin efectos secundarios"}], "id": "CVE-2021-39226", "lastModified": "2026-06-17T04:03:21.130", "metrics": {"cvssMetricV2": [{"acInsufInfo": false, "baseSeverity": "MEDIUM", "cvssData": {"accessComplexity": "MEDIUM", "accessVector": "NETWORK", "authentication": "NONE", "availabilityImpact": "PARTIAL", "baseScore": 6.8, "confidentialityImpact": "PARTIAL", "integrityImpact": "PARTIAL", "vectorString": "AV:N/AC:M/Au:N/C:P/I:P/A:P", "version": "2.0"}, "exploitabilityScore": 8.6, "impactScore": 6.4, "obtainAllPrivilege": false, "obtainOtherPrivilege": false, "obtainUserPrivilege": false, "source": "nvd@nist.gov", "type": "Primary", "userInteractionRequired": false}], "cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 9.8, "baseSeverity": "CRITICAL", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H", "version": "3.1"}, "exploitabilityScore": 3.9, "impactScore": 5.9, "source": "security-advisories@github.com", "type": "Secondary"}, {"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "LOW", "baseScore": 7.3, "baseSeverity": "HIGH", "confidentialityImpact": "LOW", "integrityImpact": "LOW", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L", "version": "3.1"}, "exploitabilityScore": 3.9, "impactScore": 3.4, "source": "nvd@nist.gov", "type": "Primary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2021-39226", "options": [{"exploitation": "active"}, {"automatable": "yes"}, {"technicalImpact": "total"}], "role": "CISA Coordinator", "timestamp": "2025-02-06T19:36:13.338394Z", "version": "2.0.3"}}]}, "published": "2021-10-05T18:15:07.947", "references": [{"source": "security-advisories@github.com", "tags": ["Mailing List", "Third Party Advisory"], "url": "http://www.openwall.com/lists/oss-security/2021/10/05/4"}, {"source": "security-advisories@github.com", "tags": ["Patch"], "url": "https://github.com/grafana/grafana/commit/2d456a6375855364d098ede379438bf7f0667269"}, {"source": "security-advisories@github.com", "tags": ["Exploit", "Mitigation", "Vendor Advisory"], "url": "https://github.com/grafana/grafana/security/advisories/GHSA-69j6-29vr-p3j9"}, {"source": "security-advisories@github.com", "tags": ["Release Notes"], "url": "https://grafana.com/docs/grafana/latest/release-notes/release-notes-7-5-11/"}, {"source": "security-advisories@github.com", "tags": ["Release Notes"], "url": "https://grafana.com/docs/grafana/latest/release-notes/release-notes-8-1-6/"}, {"source": "security-advisories@github.com", "tags": ["Broken Link"], "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/DCKBFUSY6V4VU5AQUYWKISREZX5NLQJT/"}, {"source": "security-advisories@github.com", "tags": ["Broken Link"], "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/E6ANHRDBXQT6TURLP2THM26ZPDINFBEG/"}, {"source": "security-advisories@github.com", "tags": ["Third Party Advisory"], "url": "https://security.netapp.com/advisory/ntap-20211029-0008/"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Mailing List", "Third Party Advisory"], "url": "http://www.openwall.com/lists/oss-security/2021/10/05/4"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Patch"], "url": "https://github.com/grafana/grafana/commit/2d456a6375855364d098ede379438bf7f0667269"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Exploit", "Mitigation", "Vendor Advisory"], "url": "https://github.com/grafana/grafana/security/advisories/GHSA-69j6-29vr-p3j9"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Release Notes"], "url": "https://grafana.com/docs/grafana/latest/release-notes/release-notes-7-5-11/"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Release Notes"], "url": "https://grafana.com/docs/grafana/latest/release-notes/release-notes-8-1-6/"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Broken Link"], "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/DCKBFUSY6V4VU5AQUYWKISREZX5NLQJT/"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Broken Link"], "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/E6ANHRDBXQT6TURLP2THM26ZPDINFBEG/"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Third Party Advisory"], "url": "https://security.netapp.com/advisory/ntap-20211029-0008/"}, {"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "tags": ["US Government Resource"], "url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2021-39226"}], "sourceIdentifier": "security-advisories@github.com", "vulnStatus": "Analyzed", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-287"}], "source": "security-advisories@github.com", "type": "Secondary"}, {"description": [{"lang": "en", "value": "CWE-862"}], "source": "nvd@nist.gov", "type": "Primary"}]}

{"affected_release": [{"advisory": "RHSA-2021:3771", "cpe": "cpe:/a:redhat:enterprise_linux:8", "package": "grafana-0:7.3.6-3.el8_4", "product_name": "Red Hat Enterprise Linux 8", "release_date": "2021-10-12T00:00:00Z"}, {"advisory": "RHSA-2021:3769", "cpe": "cpe:/a:redhat:rhel_eus:8.1", "package": "grafana-0:6.2.2-7.el8_1", "product_name": "Red Hat Enterprise Linux 8.1 Extended Update Support", "release_date": "2021-10-12T00:00:00Z"}, {"advisory": "RHSA-2021:3770", "cpe": "cpe:/a:redhat:rhel_eus:8.2", "package": "grafana-0:6.3.6-3.el8_2", "product_name": "Red Hat Enterprise Linux 8.2 Extended Update Support", "release_date": "2021-10-12T00:00:00Z"}, {"advisory": "RHSA-2022:6252", "cpe": "cpe:/a:redhat:openshift:3.11::el7", "impact": "moderate", "package": "openshift3/grafana:v3.11.784-1.g423963f", "product_name": "Red Hat OpenShift Container Platform 3.11", "release_date": "2022-09-07T00:00:00Z"}, {"advisory": "RHSA-2022:0056", "cpe": "cpe:/a:redhat:openshift:4.10::el8", "impact": "moderate", "package": "openshift4/ose-grafana:v4.10.0-202202160023.p0.g48aec35.assembly.stream", "product_name": "Red Hat OpenShift Container Platform 4.10", "release_date": "2022-03-10T00:00:00Z"}, {"advisory": "RHSA-2022:6262", "cpe": "cpe:/a:redhat:openshift:4.6::el8", "impact": "moderate", "package": "openshift4/ose-grafana:v4.6.0-202208310224.p0.gcf170c0.assembly.stream", "product_name": "Red Hat OpenShift Container Platform 4.6", "release_date": "2022-09-09T00:00:00Z"}, {"advisory": "RHSA-2022:6322", "cpe": "cpe:/a:redhat:openshift:4.7::el8", "impact": "moderate", "package": "openshift4/ose-grafana:v4.7.0-202208310205.p0.g613acad.assembly.stream", "product_name": "Red Hat OpenShift Container Platform 4.7", "release_date": "2022-09-13T00:00:00Z"}, {"advisory": "RHSA-2022:6308", "cpe": "cpe:/a:redhat:openshift:4.8::el8", "impact": "moderate", "package": "openshift4/ose-grafana:v4.8.0-202208311019.p0.gf98b47f.assembly.stream", "product_name": "Red Hat OpenShift Container Platform 4.8", "release_date": "2022-09-14T00:00:00Z"}, {"advisory": "RHSA-2022:6317", "cpe": "cpe:/a:redhat:openshift:4.9::el8", "impact": "moderate", "package": "openshift4/ose-grafana:v4.9.0-202208311003.p0.g3b7bed6.assembly.stream", "product_name": "Red Hat OpenShift Container Platform 4.9", "release_date": "2022-09-12T00:00:00Z"}], "bugzilla": {"description": "grafana: Snapshot authentication bypass", "id": "2011063", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2011063"}, "csaw": true, "cvss3": {"cvss3_base_score": "7.3", "cvss3_scoring_vector": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L", "status": "verified"}, "cwe": "CWE-639", "details": ["Grafana is an open source data visualization platform. In affected versions unauthenticated and authenticated users are able to view the snapshot with the lowest database key by accessing the literal paths: /dashboard/snapshot/:key, or /api/snapshots/:key. If the snapshot \"public_mode\" configuration setting is set to true (vs default of false), unauthenticated users are able to delete the snapshot with the lowest database key by accessing the literal path: /api/snapshots-delete/:deleteKey. Regardless of the snapshot \"public_mode\" setting, authenticated users are able to delete the snapshot with the lowest database key by accessing the literal paths: /api/snapshots/:key, or /api/snapshots-delete/:deleteKey. The combination of deletion and viewing enables a complete walk through all snapshot data while resulting in complete snapshot data loss. This issue has been resolved in versions 8.1.6 and 7.5.11. If for some reason you cannot upgrade you can use a reverse proxy or similar to block access to the literal paths: /api/snapshots/:key, /api/snapshots-delete/:deleteKey, /dashboard/snapshot/:key, and /api/snapshots/:key. They have no normal function and can be disabled without side effects.", "An authentication bypass was found in grafana. An attacker on the network is able to view and delete snapshots by accessing a literal path."], "name": "CVE-2021-39226", "package_state": [{"cpe": "cpe:/a:redhat:service_mesh:1", "fix_state": "Out of support scope", "impact": "moderate", "package_name": "servicemesh-grafana", "product_name": "OpenShift Service Mesh 1"}, {"cpe": "cpe:/a:redhat:service_mesh:2.0", "fix_state": "Will not fix", "package_name": "servicemesh-grafana", "product_name": "OpenShift Service Mesh 2.0"}, {"cpe": "cpe:/a:redhat:acm:2", "fix_state": "Not affected", "impact": "moderate", "package_name": "grafana", "product_name": "Red Hat Advanced Cluster Management for Kubernetes 2"}, {"cpe": "cpe:/a:redhat:ceph_storage:2", "fix_state": "Affected", "package_name": "grafana", "product_name": "Red Hat Ceph Storage 2"}, {"cpe": "cpe:/a:redhat:ceph_storage:3", "fix_state": "Affected", "package_name": "grafana", "product_name": "Red Hat Ceph Storage 3"}, {"cpe": "cpe:/a:redhat:ceph_storage:3", "fix_state": "Affected", "package_name": "grafana-container", "product_name": "Red Hat Ceph Storage 3"}, {"cpe": "cpe:/a:redhat:ceph_storage:4", "fix_state": "Affected", "package_name": "rhceph/rhceph-4-dashboard-rhel8", "product_name": "Red Hat Ceph Storage 4"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Not affected", "package_name": "grafana", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/a:redhat:storage:3", "fix_state": "Affected", "impact": "moderate", "package_name": "grafana", "product_name": "Red Hat Storage 3"}], "public_date": "2021-10-05T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2021-39226\nhttps://nvd.nist.gov/vuln/detail/CVE-2021-39226\nhttps://github.com/grafana/grafana/security/advisories/GHSA-69j6-29vr-p3j9\nhttps://grafana.com/blog/2021/10/05/grafana-7.5.11-and-8.1.6-released-with-critical-security-fix/\nhttps://www.cisa.gov/known-exploited-vulnerabilities-catalog"], "statement": "In OpenShift Container Platform (OCP), Red Hat Advanced Cluster Management for Kubernetes (RHACM), and OpenShift ServiceMesh (OSSM) the grafana components are protected by OpenShift OAuth that reduces the impact of this flaw to Moderate. Access to the grafana panel where snapshots can be created requires admin permissions. Additionally snapshots by default are not available to unauthenticated users and don't contain sensitive data.\nSince snapshots by default are not available to unauthenticated users and don't contain sensitive data, impact has been lowered for Red Hat Gluster Storage 3.", "threat_severity": "Important"}

{}