{
  "GSD": {
    "alias": "CVE-2021-21639",
    "description": "Jenkins 2.286 and earlier, LTS 2.277.1 and earlier does not validate the type of object created after loading the data submitted to the `config.xml` REST API endpoint of a node, allowing attackers with Computer/Configure permission to replace a node with one of a different type.",
    "id": "GSD-2021-21639",
    "references": [
      "https://access.redhat.com/errata/RHSA-2021:2437",
      "https://access.redhat.com/errata/RHSA-2021:1551",
      "https://security.archlinux.org/CVE-2021-21639"
    ]
  },
  "gsd": {
    "metadata": {
      "exploitCode": "unknown",
      "remediation": "unknown",
      "reportConfidence": "confirmed",
      "type": "vulnerability"
    },
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      "aliases": [
        "CVE-2021-21639"
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      "details": "Jenkins 2.286 and earlier, LTS 2.277.1 and earlier does not validate the type of object created after loading the data submitted to the `config.xml` REST API endpoint of a node, allowing attackers with Computer/Configure permission to replace a node with one of a different type.",
      "id": "GSD-2021-21639",
      "modified": "2023-12-13T01:23:11.258645Z",
      "schema_version": "1.4.0"
    }
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                          "version_affected": "\u003c=",
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            "name": "https://www.jenkins.io/security/advisory/2021-04-07/#SECURITY-1721",
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        {
          "affected_range": "[2.277.1,2.286]",
          "affected_versions": "All versions after 2.277.1 up to 2.286",
          "cvss_v2": "AV:N/AC:L/Au:S/C:N/I:P/A:N",
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          "cwe_ids": [
            "CWE-1035",
            "CWE-20",
            "CWE-937"
          ],
          "date": "2021-04-13",
          "description": "Jenkins does not validate the type of object created after loading the data submitted to the `config.xml` REST API endpoint of a node, allowing attackers with Computer/Configure permission to replace a node with one of a different type.",
          "fixed_versions": [],
          "identifier": "CVE-2021-21639",
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          "not_impacted": "",
          "package_slug": "maven/org.jenkins-ci.main/jenkins-core",
          "pubdate": "2021-04-07",
          "solution": "Unfortunately, there is no solution available yet.",
          "title": "Improper Input Validation",
          "urls": [
            "https://nvd.nist.gov/vuln/detail/CVE-2021-21639",
            "https://www.jenkins.io/security/advisory/2021-04-07/#SECURITY-1721"
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              "url": "https://www.jenkins.io/security/advisory/2021-04-07/#SECURITY-1721"
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              "name": "[oss-security] 20210407 Multiple vulnerabilities in Jenkins and Jenkins plugins",
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      "impact": {
        "baseMetricV2": {
          "acInsufInfo": false,
          "cvssV2": {
            "accessComplexity": "LOW",
            "accessVector": "NETWORK",
            "authentication": "SINGLE",
            "availabilityImpact": "NONE",
            "baseScore": 4.0,
            "confidentialityImpact": "NONE",
            "integrityImpact": "PARTIAL",
            "vectorString": "AV:N/AC:L/Au:S/C:N/I:P/A:N",
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          "exploitabilityScore": 8.0,
          "impactScore": 2.9,
          "obtainAllPrivilege": false,
          "obtainOtherPrivilege": false,
          "obtainUserPrivilege": false,
          "severity": "MEDIUM",
          "userInteractionRequired": false
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        "baseMetricV3": {
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            "attackVector": "NETWORK",
            "availabilityImpact": "NONE",
            "baseScore": 4.3,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "NONE",
            "integrityImpact": "LOW",
            "privilegesRequired": "LOW",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
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          "impactScore": 1.4
        }
      },
      "lastModifiedDate": "2023-10-25T18:16Z",
      "publishedDate": "2021-04-07T14:15Z"
    }
  }
}