{"containers": {"cna": {"affected": [{"product": "Confluence Server", "vendor": "Atlassian", "versions": [{"lessThan": "6.13.23", "status": "affected", "version": "unspecified", "versionType": "custom"}, {"lessThan": "unspecified", "status": "affected", "version": "6.14.0", "versionType": "custom"}, {"lessThan": "7.4.11", "status": "affected", "version": "unspecified", "versionType": "custom"}, {"lessThan": "unspecified", "status": "affected", "version": "7.5.0", "versionType": "custom"}, {"lessThan": "7.11.6", "status": "affected", "version": "unspecified", "versionType": "custom"}, {"lessThan": "unspecified", "status": "affected", "version": "7.12.0", "versionType": "custom"}, {"lessThan": "7.12.5", "status": "affected", "version": "unspecified", "versionType": "custom"}]}, {"product": "Confluence Data Center", "vendor": "Atlassian", "versions": [{"lessThan": "6.13.23", "status": "affected", "version": "unspecified", "versionType": "custom"}, {"lessThan": "unspecified", "status": "affected", "version": "6.14.0", "versionType": "custom"}, {"lessThan": "7.4.11", "status": "affected", "version": "unspecified", "versionType": "custom"}, {"lessThan": "unspecified", "status": "affected", "version": "7.5.0", "versionType": "custom"}, {"lessThan": "7.11.6", "status": "affected", "version": "unspecified", "versionType": "custom"}, {"lessThan": "unspecified", "status": "affected", "version": "7.12.0", "versionType": "custom"}, {"lessThan": "7.12.5", "status": "affected", "version": "unspecified", "versionType": "custom"}]}], "datePublic": "2021-08-10T00:00:00.000Z", "descriptions": [{"lang": "en", "value": "In affected versions of Confluence Server and Data Center, an OGNL injection vulnerability exists that would allow an unauthenticated attacker to execute arbitrary code on a Confluence Server or Data Center instance. The affected versions are before version 6.13.23, from version 6.14.0 before 7.4.11, from version 7.5.0 before 7.11.6, and from version 7.12.0 before 7.12.5."}], "problemTypes": [{"descriptions": [{"description": "Remote Code Execution", "lang": "en", "type": "text"}]}], "providerMetadata": {"dateUpdated": "2022-06-08T17:06:12.000Z", "orgId": "f08a6ab8-ed46-4c22-8884-d911ccfe3c66", "shortName": "atlassian"}, "references": [{"tags": ["x_refsource_MISC"], "url": "https://jira.atlassian.com/browse/CONFSERVER-67940"}, {"tags": ["x_refsource_MISC"], "url": "http://packetstormsecurity.com/files/167449/Atlassian-Confluence-Namespace-OGNL-Injection.html"}], "x_legacyV4Record": {"CVE_data_meta": {"ASSIGNER": "security@atlassian.com", "DATE_PUBLIC": "2021-08-10T00:00:00", "ID": "CVE-2021-26084", "STATE": "PUBLIC"}, "affects": {"vendor": {"vendor_data": [{"product": {"product_data": [{"product_name": "Confluence Server", "version": {"version_data": [{"version_affected": "<", "version_value": "6.13.23"}, {"version_affected": ">=", "version_value": "6.14.0"}, {"version_affected": "<", "version_value": "7.4.11"}, {"version_affected": ">=", "version_value": "7.5.0"}, {"version_affected": "<", "version_value": "7.11.6"}, {"version_affected": ">=", "version_value": "7.12.0"}, {"version_affected": "<", "version_value": "7.12.5"}]}}, {"product_name": "Confluence Data Center", "version": {"version_data": [{"version_affected": "<", "version_value": "6.13.23"}, {"version_affected": ">=", "version_value": "6.14.0"}, {"version_affected": "<", "version_value": "7.4.11"}, {"version_affected": ">=", "version_value": "7.5.0"}, {"version_affected": "<", "version_value": "7.11.6"}, {"version_affected": ">=", "version_value": "7.12.0"}, {"version_affected": "<", "version_value": "7.12.5"}]}}]}, "vendor_name": "Atlassian"}]}}, "data_format": "MITRE", "data_type": "CVE", "data_version": "4.0", "description": {"description_data": [{"lang": "eng", "value": "In affected versions of Confluence Server and Data Center, an OGNL injection vulnerability exists that would allow an unauthenticated attacker to execute arbitrary code on a Confluence Server or Data Center instance. The affected versions are before version 6.13.23, from version 6.14.0 before 7.4.11, from version 7.5.0 before 7.11.6, and from version 7.12.0 before 7.12.5."}]}, "problemtype": {"problemtype_data": [{"description": [{"lang": "eng", "value": "Remote Code Execution"}]}]}, "references": {"reference_data": [{"name": "https://jira.atlassian.com/browse/CONFSERVER-67940", "refsource": "MISC", "url": "https://jira.atlassian.com/browse/CONFSERVER-67940"}, {"name": "http://packetstormsecurity.com/files/167449/Atlassian-Confluence-Namespace-OGNL-Injection.html", "refsource": "MISC", "url": "http://packetstormsecurity.com/files/167449/Atlassian-Confluence-Namespace-OGNL-Injection.html"}]}}}, "adp": [{"providerMetadata": {"orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2024-08-03T20:19:19.592Z"}, "title": "CVE Program Container", "references": [{"tags": ["x_refsource_MISC", "x_transferred"], "url": "https://jira.atlassian.com/browse/CONFSERVER-67940"}, {"tags": ["x_refsource_MISC", "x_transferred"], "url": "http://packetstormsecurity.com/files/167449/Atlassian-Confluence-Namespace-OGNL-Injection.html"}]}, {"metrics": [{"cvssV3_1": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 9.8, "attackVector": "NETWORK", "baseSeverity": "CRITICAL", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H", "integrityImpact": "HIGH", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "NONE", "confidentialityImpact": "HIGH"}}, {"other": {"type": "ssvc", "content": {"id": "CVE-2021-26084", "role": "CISA Coordinator", "options": [{"Exploitation": "active"}, {"Automatable": "rapid"}, {"Technical Impact": "total"}], "version": "2.0.3", "timestamp": "2025-07-24T03:55:33.630835Z"}}}, {"other": {"type": "kev", "content": {"dateAdded": "2021-11-03", "reference": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2021-26084"}}}], "references": [{"url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2021-26084", "tags": ["government-resource"]}], "problemTypes": [{"descriptions": [{"lang": "en", "type": "CWE", "cweId": "CWE-917", "description": "CWE-917 Improper Neutralization of Special Elements used in an Expression Language Statement ('Expression Language Injection')"}]}], "timeline": [{"time": "2021-11-03T00:00:00+00:00", "lang": "en", "value": "CVE-2021-26084 added to CISA KEV"}], "title": "CISA ADP Vulnrichment", "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2025-10-21T23:25:35.945Z"}}]}, "cveMetadata": {"assignerOrgId": "f08a6ab8-ed46-4c22-8884-d911ccfe3c66", "assignerShortName": "atlassian", "cveId": "CVE-2021-26084", "datePublished": "2021-08-30T06:30:14.248Z", "dateReserved": "2021-01-25T00:00:00.000Z", "dateUpdated": "2025-10-21T23:25:35.945Z", "state": "PUBLISHED"}, "dataType": "CVE_RECORD", "dataVersion": "5.1"}

{"dataType": "CVE_RECORD", "containers": {"adp": [{"title": "CVE Program Container", "references": [{"url": "https://jira.atlassian.com/browse/CONFSERVER-67940", "tags": ["x_refsource_MISC", "x_transferred"]}, {"url": "http://packetstormsecurity.com/files/167449/Atlassian-Confluence-Namespace-OGNL-Injection.html", "tags": ["x_refsource_MISC", "x_transferred"]}], "providerMetadata": {"orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2024-08-03T20:19:19.592Z"}}, {"title": "CISA ADP Vulnrichment", "metrics": [{"cvssV3_1": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 9.8, "attackVector": "NETWORK", "baseSeverity": "CRITICAL", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H", "integrityImpact": "HIGH", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "NONE", "confidentialityImpact": "HIGH"}}, {"other": {"type": "ssvc", "content": {"id": "CVE-2021-26084", "role": "CISA Coordinator", "options": [{"Exploitation": "active"}, {"Automatable": "rapid"}, {"Technical Impact": "total"}], "version": "2.0.3", "timestamp": "2025-07-24T03:55:33.630835Z"}}}, {"other": {"type": "kev", "content": {"dateAdded": "2021-11-03", "reference": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2021-26084"}}}], "timeline": [{"lang": "en", "time": "2021-11-03T00:00:00+00:00", "value": "CVE-2021-26084 added to CISA KEV"}], "problemTypes": [{"descriptions": [{"lang": "en", "type": "CWE", "cweId": "CWE-917", "description": "CWE-917 Improper Neutralization of Special Elements used in an Expression Language Statement ('Expression Language Injection')"}]}], "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2025-02-04T14:48:14.220Z"}}], "cna": {"affected": [{"vendor": "Atlassian", "product": "Confluence Server", "versions": [{"status": "affected", "version": "unspecified", "lessThan": "6.13.23", "versionType": "custom"}, {"status": "affected", "version": "6.14.0", "lessThan": "unspecified", "versionType": "custom"}, {"status": "affected", "version": "unspecified", "lessThan": "7.4.11", "versionType": "custom"}, {"status": "affected", "version": "7.5.0", "lessThan": "unspecified", "versionType": "custom"}, {"status": "affected", "version": "unspecified", "lessThan": "7.11.6", "versionType": "custom"}, {"status": "affected", "version": "7.12.0", "lessThan": "unspecified", "versionType": "custom"}, {"status": "affected", "version": "unspecified", "lessThan": "7.12.5", "versionType": "custom"}]}, {"vendor": "Atlassian", "product": "Confluence Data Center", "versions": [{"status": "affected", "version": "unspecified", "lessThan": "6.13.23", "versionType": "custom"}, {"status": "affected", "version": "6.14.0", "lessThan": "unspecified", "versionType": "custom"}, {"status": "affected", "version": "unspecified", "lessThan": "7.4.11", "versionType": "custom"}, {"status": "affected", "version": "7.5.0", "lessThan": "unspecified", "versionType": "custom"}, {"status": "affected", "version": "unspecified", "lessThan": "7.11.6", "versionType": "custom"}, {"status": "affected", "version": "7.12.0", "lessThan": "unspecified", "versionType": "custom"}, {"status": "affected", "version": "unspecified", "lessThan": "7.12.5", "versionType": "custom"}]}], "datePublic": "2021-08-10T00:00:00.000Z", "references": [{"url": "https://jira.atlassian.com/browse/CONFSERVER-67940", "tags": ["x_refsource_MISC"]}, {"url": "http://packetstormsecurity.com/files/167449/Atlassian-Confluence-Namespace-OGNL-Injection.html", "tags": ["x_refsource_MISC"]}], "descriptions": [{"lang": "en", "value": "In affected versions of Confluence Server and Data Center, an OGNL injection vulnerability exists that would allow an unauthenticated attacker to execute arbitrary code on a Confluence Server or Data Center instance. The affected versions are before version 6.13.23, from version 6.14.0 before 7.4.11, from version 7.5.0 before 7.11.6, and from version 7.12.0 before 7.12.5."}], "problemTypes": [{"descriptions": [{"lang": "en", "type": "text", "description": "Remote Code Execution"}]}], "providerMetadata": {"orgId": "f08a6ab8-ed46-4c22-8884-d911ccfe3c66", "shortName": "atlassian", "dateUpdated": "2022-06-08T17:06:12.000Z"}, "x_legacyV4Record": {"affects": {"vendor": {"vendor_data": [{"product": {"product_data": [{"version": {"version_data": [{"version_value": "6.13.23", "version_affected": "<"}, {"version_value": "6.14.0", "version_affected": ">="}, {"version_value": "7.4.11", "version_affected": "<"}, {"version_value": "7.5.0", "version_affected": ">="}, {"version_value": "7.11.6", "version_affected": "<"}, {"version_value": "7.12.0", "version_affected": ">="}, {"version_value": "7.12.5", "version_affected": "<"}]}, "product_name": "Confluence Server"}, {"version": {"version_data": [{"version_value": "6.13.23", "version_affected": "<"}, {"version_value": "6.14.0", "version_affected": ">="}, {"version_value": "7.4.11", "version_affected": "<"}, {"version_value": "7.5.0", "version_affected": ">="}, {"version_value": "7.11.6", "version_affected": "<"}, {"version_value": "7.12.0", "version_affected": ">="}, {"version_value": "7.12.5", "version_affected": "<"}]}, "product_name": "Confluence Data Center"}]}, "vendor_name": "Atlassian"}]}}, "data_type": "CVE", "references": {"reference_data": [{"url": "https://jira.atlassian.com/browse/CONFSERVER-67940", "name": "https://jira.atlassian.com/browse/CONFSERVER-67940", "refsource": "MISC"}, {"url": "http://packetstormsecurity.com/files/167449/Atlassian-Confluence-Namespace-OGNL-Injection.html", "name": "http://packetstormsecurity.com/files/167449/Atlassian-Confluence-Namespace-OGNL-Injection.html", "refsource": "MISC"}]}, "data_format": "MITRE", "description": {"description_data": [{"lang": "eng", "value": "In affected versions of Confluence Server and Data Center, an OGNL injection vulnerability exists that would allow an unauthenticated attacker to execute arbitrary code on a Confluence Server or Data Center instance. The affected versions are before version 6.13.23, from version 6.14.0 before 7.4.11, from version 7.5.0 before 7.11.6, and from version 7.12.0 before 7.12.5."}]}, "problemtype": {"problemtype_data": [{"description": [{"lang": "eng", "value": "Remote Code Execution"}]}]}, "data_version": "4.0", "CVE_data_meta": {"ID": "CVE-2021-26084", "STATE": "PUBLIC", "ASSIGNER": "security@atlassian.com", "DATE_PUBLIC": "2021-08-10T00:00:00"}}}}, "cveMetadata": {"cveId": "CVE-2021-26084", "state": "PUBLISHED", "dateUpdated": "2025-07-30T01:38:02.460Z", "dateReserved": "2021-01-25T00:00:00.000Z", "assignerOrgId": "f08a6ab8-ed46-4c22-8884-d911ccfe3c66", "datePublished": "2021-08-30T06:30:14.248Z", "assignerShortName": "atlassian"}, "dataVersion": "5.1"}

{"cisaActionDue": "2021-11-17", "cisaExploitAdd": "2021-11-03", "cisaRequiredAction": "Apply updates per vendor instructions.", "cisaVulnerabilityName": "Atlassian Confluence Server and Data Center Object-Graph Navigation Language (OGNL) Injection Vulnerability", "configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:a:atlassian:confluence_data_center:*:*:*:*:*:*:*:*", "matchCriteriaId": "6A28735F-4827-4410-8B0B-C209ECD21DFC", "versionEndExcluding": "6.13.23", "vulnerable": true}, {"criteria": "cpe:2.3:a:atlassian:confluence_data_center:*:*:*:*:*:*:*:*", "matchCriteriaId": "FA5224DF-97AB-4D8E-B66D-FC65A1333531", "versionEndExcluding": "7.4.11", "versionStartIncluding": "6.14.0", "vulnerable": true}, {"criteria": "cpe:2.3:a:atlassian:confluence_data_center:*:*:*:*:*:*:*:*", "matchCriteriaId": "E776BF66-74F1-4D8E-9099-42A4E5EEE300", "versionEndExcluding": "7.11.6", "versionStartIncluding": "7.5.0", "vulnerable": true}, {"criteria": "cpe:2.3:a:atlassian:confluence_data_center:*:*:*:*:*:*:*:*", "matchCriteriaId": "E11303D6-258F-4FAC-A868-BF506E7F5A4E", "versionEndExcluding": "7.12.5", "versionStartIncluding": "7.12.0", "vulnerable": true}, {"criteria": "cpe:2.3:a:atlassian:confluence_server:*:*:*:*:*:*:*:*", "matchCriteriaId": "6D1FF67F-3FB4-4C0C-8263-3D4CA00A02CD", "versionEndExcluding": "6.13.23", "vulnerable": true}, {"criteria": "cpe:2.3:a:atlassian:confluence_server:*:*:*:*:*:*:*:*", "matchCriteriaId": "F5CCD4D0-6BC7-442A-9D4D-43841FE40F3E", "versionEndExcluding": "7.4.11", "versionStartIncluding": "6.14.0", "vulnerable": true}, {"criteria": "cpe:2.3:a:atlassian:confluence_server:*:*:*:*:*:*:*:*", "matchCriteriaId": "DF59072C-9911-4035-A75A-27D882988919", "versionEndExcluding": "7.11.6", "versionStartIncluding": "7.5.0", "vulnerable": true}, {"criteria": "cpe:2.3:a:atlassian:confluence_server:*:*:*:*:*:*:*:*", "matchCriteriaId": "BFEE2534-EBEF-438B-B616-ED4FFBC9246E", "versionEndExcluding": "7.12.5", "versionStartIncluding": "7.12.0", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "In affected versions of Confluence Server and Data Center, an OGNL injection vulnerability exists that would allow an unauthenticated attacker to execute arbitrary code on a Confluence Server or Data Center instance. The affected versions are before version 6.13.23, from version 6.14.0 before 7.4.11, from version 7.5.0 before 7.11.6, and from version 7.12.0 before 7.12.5."}, {"lang": "es", "value": "En las versiones afectadas de Confluence Server y Data Center, se presenta una vulnerabilidad de inyecci\u00f3n OGNL que permitir\u00eda a un usuario no autenticado ejecutar c\u00f3digo arbitrario en una instancia de Confluence Server o Data Center. Las versiones afectadas son las versiones anteriores a 6.13.23, desde versiones 6.14.0 anteriores a 7.4.11, desde versiones 7.5.0 anteriores a 7.11.6 y desde versiones 7.12.0 anteriores a 7.12.5."}], "id": "CVE-2021-26084", "lastModified": "2025-10-24T13:38:44.590", "metrics": {"cvssMetricV2": [{"acInsufInfo": false, "baseSeverity": "HIGH", "cvssData": {"accessComplexity": "LOW", "accessVector": "NETWORK", "authentication": "NONE", "availabilityImpact": "PARTIAL", "baseScore": 7.5, "confidentialityImpact": "PARTIAL", "integrityImpact": "PARTIAL", "vectorString": "AV:N/AC:L/Au:N/C:P/I:P/A:P", "version": "2.0"}, "exploitabilityScore": 10.0, "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": "nvd@nist.gov", "type": "Primary"}, {"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": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "type": "Secondary"}]}, "published": "2021-08-30T07:15:06.587", "references": [{"source": "security@atlassian.com", "tags": ["Exploit", "Third Party Advisory", "VDB Entry"], "url": "http://packetstormsecurity.com/files/167449/Atlassian-Confluence-Namespace-OGNL-Injection.html"}, {"source": "security@atlassian.com", "tags": ["Issue Tracking", "Patch", "Vendor Advisory"], "url": "https://jira.atlassian.com/browse/CONFSERVER-67940"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Exploit", "Third Party Advisory", "VDB Entry"], "url": "http://packetstormsecurity.com/files/167449/Atlassian-Confluence-Namespace-OGNL-Injection.html"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Issue Tracking", "Patch", "Vendor Advisory"], "url": "https://jira.atlassian.com/browse/CONFSERVER-67940"}, {"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "tags": ["US Government Resource"], "url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2021-26084"}], "sourceIdentifier": "security@atlassian.com", "vulnStatus": "Analyzed", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-917"}], "source": "nvd@nist.gov", "type": "Primary"}, {"description": [{"lang": "en", "value": "CWE-917"}], "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "type": "Secondary"}]}

{}