{
  "GSD": {
    "alias": "CVE-2021-21604",
    "description": "Jenkins 2.274 and earlier, LTS 2.263.1 and earlier allows attackers with permission to create or configure various objects to inject crafted content into Old Data Monitor that results in the instantiation of potentially unsafe objects once discarded by an administrator.",
    "id": "GSD-2021-21604",
    "references": [
      "https://access.redhat.com/errata/RHSA-2021:0637",
      "https://access.redhat.com/errata/RHSA-2021:0429",
      "https://access.redhat.com/errata/RHSA-2021:0423",
      "https://security.archlinux.org/CVE-2021-21604"
    ]
  },
  "gsd": {
    "metadata": {
      "exploitCode": "unknown",
      "remediation": "unknown",
      "reportConfidence": "confirmed",
      "type": "vulnerability"
    },
    "osvSchema": {
      "aliases": [
        "CVE-2021-21604"
      ],
      "details": "Jenkins 2.274 and earlier, LTS 2.263.1 and earlier allows attackers with permission to create or configure various objects to inject crafted content into Old Data Monitor that results in the instantiation of potentially unsafe objects once discarded by an administrator.",
      "id": "GSD-2021-21604",
      "modified": "2023-12-13T01:23:11.376660Z",
      "schema_version": "1.4.0"
    }
  },
  "namespaces": {
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      "CVE_data_meta": {
        "ASSIGNER": "jenkinsci-cert@googlegroups.com",
        "ID": "CVE-2021-21604",
        "STATE": "PUBLIC"
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      "affects": {
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          "vendor_data": [
            {
              "product": {
                "product_data": [
                  {
                    "product_name": "Jenkins",
                    "version": {
                      "version_data": [
                        {
                          "version_affected": "\u003c=",
                          "version_name": "unspecified",
                          "version_value": "2.274"
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        "reference_data": [
          {
            "name": "https://www.jenkins.io/security/advisory/2021-01-13/#SECURITY-1923",
            "refsource": "MISC",
            "url": "https://www.jenkins.io/security/advisory/2021-01-13/#SECURITY-1923"
          }
        ]
      }
    },
    "gitlab.com": {
      "advisories": [
        {
          "affected_range": "[2.263.1,2.274]",
          "affected_versions": "All versions after 2.263.1 up to 2.274",
          "cvss_v2": "AV:N/AC:M/Au:S/C:P/I:P/A:P",
          "cvss_v3": "CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H",
          "cwe_ids": [
            "CWE-1035",
            "CWE-502",
            "CWE-937"
          ],
          "date": "2021-01-15",
          "description": "Jenkins allows attackers with permission to create or configure various objects to inject crafted content into Old Data Monitor that results in the instantiation of potentially unsafe objects once discarded by an administrator.",
          "fixed_versions": [],
          "identifier": "CVE-2021-21604",
          "identifiers": [
            "CVE-2021-21604"
          ],
          "not_impacted": "",
          "package_slug": "maven/org.jenkins-ci.main/jenkins-core",
          "pubdate": "2021-01-13",
          "solution": "Unfortunately, there is no solution available yet.",
          "title": "Deserialization of Untrusted Data",
          "urls": [
            "https://nvd.nist.gov/vuln/detail/CVE-2021-21604",
            "https://www.jenkins.io/security/advisory/2021-01-13/#SECURITY-1923"
          ],
          "uuid": "8354fe03-170e-4113-bc15-118902bfeff6"
        }
      ]
    },
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        "nodes": [
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            "children": [],
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                "cpe_name": [],
                "versionEndIncluding": "2.274",
                "vulnerable": true
              },
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            }
          ]
        },
        "problemtype": {
          "problemtype_data": [
            {
              "description": [
                {
                  "lang": "en",
                  "value": "CWE-502"
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              ]
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        "references": {
          "reference_data": [
            {
              "name": "https://www.jenkins.io/security/advisory/2021-01-13/#SECURITY-1923",
              "refsource": "CONFIRM",
              "tags": [
                "Vendor Advisory"
              ],
              "url": "https://www.jenkins.io/security/advisory/2021-01-13/#SECURITY-1923"
            }
          ]
        }
      },
      "impact": {
        "baseMetricV2": {
          "acInsufInfo": false,
          "cvssV2": {
            "accessComplexity": "MEDIUM",
            "accessVector": "NETWORK",
            "authentication": "SINGLE",
            "availabilityImpact": "PARTIAL",
            "baseScore": 6.0,
            "confidentialityImpact": "PARTIAL",
            "integrityImpact": "PARTIAL",
            "vectorString": "AV:N/AC:M/Au:S/C:P/I:P/A:P",
            "version": "2.0"
          },
          "exploitabilityScore": 6.8,
          "impactScore": 6.4,
          "obtainAllPrivilege": false,
          "obtainOtherPrivilege": false,
          "obtainUserPrivilege": false,
          "severity": "MEDIUM",
          "userInteractionRequired": true
        },
        "baseMetricV3": {
          "cvssV3": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 8.0,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "HIGH",
            "privilegesRequired": "LOW",
            "scope": "UNCHANGED",
            "userInteraction": "REQUIRED",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H",
            "version": "3.1"
          },
          "exploitabilityScore": 2.1,
          "impactScore": 5.9
        }
      },
      "lastModifiedDate": "2023-10-25T18:16Z",
      "publishedDate": "2021-01-13T16:15Z"
    }
  }
}