CVE-2021-26084 (GCVE-0-2021-26084)
Vulnerability from cvelistv5
Published
2021-08-30 06:30
Modified
2025-10-21 23:25
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- Remote Code Execution
Summary
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.
References
| URL | Tags | ||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
|||||||||||||||||||||||
Impacted products
| Vendor | Product | Version | |||||||
|---|---|---|---|---|---|---|---|---|---|
| Atlassian | Confluence Server |
Version: unspecified < 6.13.23 Version: 6.14.0 < unspecified Version: unspecified < 7.4.11 Version: 7.5.0 < unspecified Version: unspecified < 7.11.6 Version: 7.12.0 < unspecified Version: unspecified < 7.12.5 |
|||||||
|
|||||||||
CISA Known Exploited Vulnerability
Data from the CISA Known Exploited Vulnerabilities Catalog
Date added: 2021-11-03
Due date: 2021-11-17
Required action: Apply updates per vendor instructions.
Used in ransomware: Known
Notes: https://nvd.nist.gov/vuln/detail/CVE-2021-26084
{
"containers": {
"adp": [
{
"providerMetadata": {
"dateUpdated": "2024-08-03T20:19:19.592Z",
"orgId": "af854a3a-2127-422b-91ae-364da2661108",
"shortName": "CVE"
},
"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"
}
],
"title": "CVE Program Container"
},
{
"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"
}
},
{
"other": {
"content": {
"id": "CVE-2021-26084",
"options": [
{
"Exploitation": "active"
},
{
"Automatable": "rapid"
},
{
"Technical Impact": "total"
}
],
"role": "CISA Coordinator",
"timestamp": "2025-07-24T03:55:33.630835Z",
"version": "2.0.3"
},
"type": "ssvc"
}
},
{
"other": {
"content": {
"dateAdded": "2021-11-03",
"reference": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2021-26084"
},
"type": "kev"
}
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-917",
"description": "CWE-917 Improper Neutralization of Special Elements used in an Expression Language Statement (\u0027Expression Language Injection\u0027)",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2025-10-21T23:25:35.945Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"references": [
{
"tags": [
"government-resource"
],
"url": "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"
}
],
"title": "CISA ADP Vulnrichment"
}
],
"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": "\u003c",
"version_value": "6.13.23"
},
{
"version_affected": "\u003e=",
"version_value": "6.14.0"
},
{
"version_affected": "\u003c",
"version_value": "7.4.11"
},
{
"version_affected": "\u003e=",
"version_value": "7.5.0"
},
{
"version_affected": "\u003c",
"version_value": "7.11.6"
},
{
"version_affected": "\u003e=",
"version_value": "7.12.0"
},
{
"version_affected": "\u003c",
"version_value": "7.12.5"
}
]
}
},
{
"product_name": "Confluence Data Center",
"version": {
"version_data": [
{
"version_affected": "\u003c",
"version_value": "6.13.23"
},
{
"version_affected": "\u003e=",
"version_value": "6.14.0"
},
{
"version_affected": "\u003c",
"version_value": "7.4.11"
},
{
"version_affected": "\u003e=",
"version_value": "7.5.0"
},
{
"version_affected": "\u003c",
"version_value": "7.11.6"
},
{
"version_affected": "\u003e=",
"version_value": "7.12.0"
},
{
"version_affected": "\u003c",
"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"
}
]
}
}
}
},
"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",
"vulnerability-lookup:meta": {
"cisa_known_exploited": {
"cveID": "CVE-2021-26084",
"cwes": "[\"CWE-917\"]",
"dateAdded": "2021-11-03",
"dueDate": "2021-11-17",
"knownRansomwareCampaignUse": "Known",
"notes": "https://nvd.nist.gov/vuln/detail/CVE-2021-26084",
"product": "Confluence Server and Data Center",
"requiredAction": "Apply updates per vendor instructions.",
"shortDescription": "Atlassian Confluence Server and Data Server contain an Object-Graph Navigation Language (OGNL) injection vulnerability that may allow an unauthenticated attacker to execute code.",
"vendorProject": "Atlassian",
"vulnerabilityName": "Atlassian Confluence Server and Data Center Object-Graph Navigation Language (OGNL) Injection Vulnerability"
},
"nvd": "{\"cve\":{\"id\":\"CVE-2021-26084\",\"sourceIdentifier\":\"security@atlassian.com\",\"published\":\"2021-08-30T07:15:06.587\",\"lastModified\":\"2025-10-24T13:38:44.590\",\"vulnStatus\":\"Analyzed\",\"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.\"}],\"metrics\":{\"cvssMetricV31\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H\",\"baseScore\":9.8,\"baseSeverity\":\"CRITICAL\",\"attackVector\":\"NETWORK\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"NONE\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"HIGH\",\"integrityImpact\":\"HIGH\",\"availabilityImpact\":\"HIGH\"},\"exploitabilityScore\":3.9,\"impactScore\":5.9},{\"source\":\"134c704f-9b21-4f2e-91b3-4a467353bcc0\",\"type\":\"Secondary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H\",\"baseScore\":9.8,\"baseSeverity\":\"CRITICAL\",\"attackVector\":\"NETWORK\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"NONE\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"HIGH\",\"integrityImpact\":\"HIGH\",\"availabilityImpact\":\"HIGH\"},\"exploitabilityScore\":3.9,\"impactScore\":5.9}],\"cvssMetricV2\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"2.0\",\"vectorString\":\"AV:N/AC:L/Au:N/C:P/I:P/A:P\",\"baseScore\":7.5,\"accessVector\":\"NETWORK\",\"accessComplexity\":\"LOW\",\"authentication\":\"NONE\",\"confidentialityImpact\":\"PARTIAL\",\"integrityImpact\":\"PARTIAL\",\"availabilityImpact\":\"PARTIAL\"},\"baseSeverity\":\"HIGH\",\"exploitabilityScore\":10.0,\"impactScore\":6.4,\"acInsufInfo\":false,\"obtainAllPrivilege\":false,\"obtainUserPrivilege\":false,\"obtainOtherPrivilege\":false,\"userInteractionRequired\":false}]},\"cisaExploitAdd\":\"2021-11-03\",\"cisaActionDue\":\"2021-11-17\",\"cisaRequiredAction\":\"Apply updates per vendor instructions.\",\"cisaVulnerabilityName\":\"Atlassian Confluence Server and Data Center Object-Graph Navigation Language (OGNL) Injection Vulnerability\",\"weaknesses\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-917\"}]},{\"source\":\"134c704f-9b21-4f2e-91b3-4a467353bcc0\",\"type\":\"Secondary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-917\"}]}],\"configurations\":[{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:atlassian:confluence_data_center:*:*:*:*:*:*:*:*\",\"versionEndExcluding\":\"6.13.23\",\"matchCriteriaId\":\"6A28735F-4827-4410-8B0B-C209ECD21DFC\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:atlassian:confluence_data_center:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"6.14.0\",\"versionEndExcluding\":\"7.4.11\",\"matchCriteriaId\":\"FA5224DF-97AB-4D8E-B66D-FC65A1333531\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:atlassian:confluence_data_center:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"7.5.0\",\"versionEndExcluding\":\"7.11.6\",\"matchCriteriaId\":\"E776BF66-74F1-4D8E-9099-42A4E5EEE300\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:atlassian:confluence_data_center:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"7.12.0\",\"versionEndExcluding\":\"7.12.5\",\"matchCriteriaId\":\"E11303D6-258F-4FAC-A868-BF506E7F5A4E\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:atlassian:confluence_server:*:*:*:*:*:*:*:*\",\"versionEndExcluding\":\"6.13.23\",\"matchCriteriaId\":\"6D1FF67F-3FB4-4C0C-8263-3D4CA00A02CD\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:atlassian:confluence_server:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"6.14.0\",\"versionEndExcluding\":\"7.4.11\",\"matchCriteriaId\":\"F5CCD4D0-6BC7-442A-9D4D-43841FE40F3E\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:atlassian:confluence_server:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"7.5.0\",\"versionEndExcluding\":\"7.11.6\",\"matchCriteriaId\":\"DF59072C-9911-4035-A75A-27D882988919\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:atlassian:confluence_server:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"7.12.0\",\"versionEndExcluding\":\"7.12.5\",\"matchCriteriaId\":\"BFEE2534-EBEF-438B-B616-ED4FFBC9246E\"}]}]}],\"references\":[{\"url\":\"http://packetstormsecurity.com/files/167449/Atlassian-Confluence-Namespace-OGNL-Injection.html\",\"source\":\"security@atlassian.com\",\"tags\":[\"Exploit\",\"Third Party Advisory\",\"VDB Entry\"]},{\"url\":\"https://jira.atlassian.com/browse/CONFSERVER-67940\",\"source\":\"security@atlassian.com\",\"tags\":[\"Issue Tracking\",\"Patch\",\"Vendor Advisory\"]},{\"url\":\"http://packetstormsecurity.com/files/167449/Atlassian-Confluence-Namespace-OGNL-Injection.html\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Exploit\",\"Third Party Advisory\",\"VDB Entry\"]},{\"url\":\"https://jira.atlassian.com/browse/CONFSERVER-67940\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Issue Tracking\",\"Patch\",\"Vendor Advisory\"]},{\"url\":\"https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2021-26084\",\"source\":\"134c704f-9b21-4f2e-91b3-4a467353bcc0\",\"tags\":[\"US Government Resource\"]}]}}",
"vulnrichment": {
"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 (\u0027Expression Language Injection\u0027)\"}]}], \"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\": \"\u003c\"}, {\"version_value\": \"6.14.0\", \"version_affected\": \"\u003e=\"}, {\"version_value\": \"7.4.11\", \"version_affected\": \"\u003c\"}, {\"version_value\": \"7.5.0\", \"version_affected\": \"\u003e=\"}, {\"version_value\": \"7.11.6\", \"version_affected\": \"\u003c\"}, {\"version_value\": \"7.12.0\", \"version_affected\": \"\u003e=\"}, {\"version_value\": \"7.12.5\", \"version_affected\": \"\u003c\"}]}, \"product_name\": \"Confluence Server\"}, {\"version\": {\"version_data\": [{\"version_value\": \"6.13.23\", \"version_affected\": \"\u003c\"}, {\"version_value\": \"6.14.0\", \"version_affected\": \"\u003e=\"}, {\"version_value\": \"7.4.11\", \"version_affected\": \"\u003c\"}, {\"version_value\": \"7.5.0\", \"version_affected\": \"\u003e=\"}, {\"version_value\": \"7.11.6\", \"version_affected\": \"\u003c\"}, {\"version_value\": \"7.12.0\", \"version_affected\": \"\u003e=\"}, {\"version_value\": \"7.12.5\", \"version_affected\": \"\u003c\"}]}, \"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\"}",
"dataType": "CVE_RECORD",
"dataVersion": "5.1"
}
}
}
Loading…
Loading…
Sightings
| Author | Source | Type | Date |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
- Confirmed: The vulnerability is confirmed from an analyst perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
- Patched: This vulnerability was successfully patched by the user reporting the sighting.
- Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
- Not confirmed: The user expresses doubt about the veracity of the vulnerability.
- Not patched: This vulnerability was not successfully patched by the user reporting the sighting.
Loading…
Loading…