{
  "document": {
    "aggregate_severity": {
      "namespace": "https://access.redhat.com/security/updates/classification/",
      "text": "Low"
    },
    "category": "csaf_vex",
    "csaf_version": "2.0",
    "publisher": {
      "category": "vendor",
      "contact_details": "https://access.redhat.com/security/team/contact/",
      "issuing_authority": "Red Hat Product Security is responsible for vulnerability handling across all Red Hat products and services.",
      "name": "Red Hat Product Security",
      "namespace": "https://www.redhat.com"
    },
    "title": "lack of type validation in agent related REST API",
    "tracking": {
      "current_release_date": "2026-08-11T14:53:34+00:00",
      "generator": {
        "date": "2026-08-11T14:53:34+00:00",
        "engine": {
          "name": "CSAF Generator",
          "version": "3.3.0"
        }
      },
      "id": "CVE-2021-21639",
      "initial_release_date": "2021-04-07T00:00:00+00:00",
      "revision_history": [
        {
          "date": "2026-08-11T14:53:34+00:00",
          "number": "1",
          "summary": "Last generated version"
        }
      ],
      "status": "final",
      "version": "1"
    }
  },
  "product_tree": {
    "branches": [
      {
        "category": "vendor",
        "name": "Red Hat",
        "branches": [
          {
            "category": "product_name",
            "name": "OpenShift Container Platform 4.19",
            "product": {
              "name": "OpenShift Container Platform 4.19",
              "product_id": "openshift-4",
              "product_identification_helper": {
                "cpe": "cpe:/a:redhat:openshift:4"
              }
            }
          },
          {
            "category": "product_name",
            "name": "OpenShift Container Platform 4.7",
            "product": {
              "name": "OpenShift Container Platform 4.7",
              "product_id": "openshift-4.7::el8",
              "product_identification_helper": {
                "cpe": "cpe:/a:redhat:openshift:4.7::el8"
              }
            }
          },
          {
            "category": "product_name",
            "name": "OpenShift Container Platform 4.8",
            "product": {
              "name": "OpenShift Container Platform 4.8",
              "product_id": "openshift-4.8::el8",
              "product_identification_helper": {
                "cpe": "cpe:/a:redhat:openshift:4.8::el8"
              }
            }
          },
          {
            "category": "product_name",
            "name": "OpenShift Container Platform 3.11.0",
            "product": {
              "name": "OpenShift Container Platform 3.11.0",
              "product_id": "openshift-enterprise-3.11-default",
              "product_identification_helper": {
                "cpe": "cpe:/a:redhat:openshift:3.11"
              }
            }
          },
          {
            "category": "product_version",
            "name": "jenkins",
            "product": {
              "name": "jenkins",
              "product_id": "jenkins",
              "product_identification_helper": {
                "purl": "pkg:rpm/redhat/jenkins"
              }
            }
          },
          {
            "category": "product_version",
            "name": "jenkins",
            "product": {
              "name": "jenkins",
              "product_id": "jenkins-0:2.277.3.1620393611-1.el8",
              "product_identification_helper": {
                "purl": "pkg:rpm/redhat/jenkins@2.277.3.1620393611-1.el8?epoch=0"
              }
            }
          },
          {
            "category": "product_version",
            "name": "jenkins",
            "product": {
              "name": "jenkins",
              "product_id": "jenkins-0:2.277.3.1620393611-1.el8.src",
              "product_identification_helper": {
                "purl": "pkg:rpm/redhat/jenkins@2.277.3.1620393611-1.el8?arch=src&epoch=0"
              }
            }
          },
          {
            "category": "product_version",
            "name": "jenkins",
            "product": {
              "name": "jenkins",
              "product_id": "jenkins-0:2.289.1.1624020353-1.el8",
              "product_identification_helper": {
                "purl": "pkg:rpm/redhat/jenkins@2.289.1.1624020353-1.el8?epoch=0"
              }
            }
          },
          {
            "category": "product_version",
            "name": "jenkins",
            "product": {
              "name": "jenkins",
              "product_id": "jenkins-0:2.289.1.1624020353-1.el8.src",
              "product_identification_helper": {
                "purl": "pkg:rpm/redhat/jenkins@2.289.1.1624020353-1.el8?arch=src&epoch=0"
              }
            }
          },
          {
            "category": "product_version",
            "name": "jenkins",
            "product": {
              "name": "jenkins",
              "product_id": "jenkins.src",
              "product_identification_helper": {
                "purl": "pkg:rpm/redhat/jenkins?arch=src"
              }
            }
          }
        ]
      }
    ],
    "relationships": [
      {
        "category": "default_component_of",
        "full_product_name": {
          "name": "jenkins as a component of OpenShift Container Platform 4.19",
          "product_id": "openshift-4:jenkins"
        },
        "product_reference": "jenkins",
        "relates_to_product_reference": "openshift-4"
      },
      {
        "category": "default_component_of",
        "full_product_name": {
          "name": "jenkins as a component of OpenShift Container Platform 3.11.0",
          "product_id": "openshift-enterprise-3.11-default:jenkins"
        },
        "product_reference": "jenkins",
        "relates_to_product_reference": "openshift-enterprise-3.11-default"
      },
      {
        "category": "default_component_of",
        "full_product_name": {
          "name": "jenkins-0:2.277.3.1620393611-1.el8 as a component of OpenShift Container Platform 4.7",
          "product_id": "openshift-4.7::el8:jenkins-0:2.277.3.1620393611-1.el8"
        },
        "product_reference": "jenkins-0:2.277.3.1620393611-1.el8",
        "relates_to_product_reference": "openshift-4.7::el8"
      },
      {
        "category": "default_component_of",
        "full_product_name": {
          "name": "jenkins-0:2.277.3.1620393611-1.el8.src as a component of OpenShift Container Platform 4.7",
          "product_id": "openshift-4.7::el8:jenkins-0:2.277.3.1620393611-1.el8.src"
        },
        "product_reference": "jenkins-0:2.277.3.1620393611-1.el8.src",
        "relates_to_product_reference": "openshift-4.7::el8"
      },
      {
        "category": "default_component_of",
        "full_product_name": {
          "name": "jenkins-0:2.289.1.1624020353-1.el8 as a component of OpenShift Container Platform 4.8",
          "product_id": "openshift-4.8::el8:jenkins-0:2.289.1.1624020353-1.el8"
        },
        "product_reference": "jenkins-0:2.289.1.1624020353-1.el8",
        "relates_to_product_reference": "openshift-4.8::el8"
      },
      {
        "category": "default_component_of",
        "full_product_name": {
          "name": "jenkins-0:2.289.1.1624020353-1.el8.src as a component of OpenShift Container Platform 4.8",
          "product_id": "openshift-4.8::el8:jenkins-0:2.289.1.1624020353-1.el8.src"
        },
        "product_reference": "jenkins-0:2.289.1.1624020353-1.el8.src",
        "relates_to_product_reference": "openshift-4.8::el8"
      },
      {
        "category": "default_component_of",
        "full_product_name": {
          "name": "jenkins.src as a component of OpenShift Container Platform 3.11.0",
          "product_id": "openshift-enterprise-3.11-default:jenkins.src"
        },
        "product_reference": "jenkins.src",
        "relates_to_product_reference": "openshift-enterprise-3.11-default"
      },
      {
        "category": "default_component_of",
        "full_product_name": {
          "name": "jenkins.src as a component of OpenShift Container Platform 4.19",
          "product_id": "openshift-4:jenkins.src"
        },
        "product_reference": "jenkins.src",
        "relates_to_product_reference": "openshift-4"
      }
    ]
  },
  "vulnerabilities": [
    {
      "cve": "CVE-2021-21639",
      "cwe": {
        "id": "CWE-20",
        "name": "Improper Input Validation"
      },
      "discovery_date": "2021-04-07T00:00:00+00:00",
      "notes": [
        {
          "category": "description",
          "text": "A flaw was found in Jenkins. Due to lack of validation of type of object created after loading the data submitted to the config.xml REST API endpoint of a node, an attackers with Computer/Configure permission are able to replace a node with one of a different type.",
          "title": "Vulnerability description"
        }
      ],
      "product_status": {
        "fixed": [
          "openshift-4.7::el8:jenkins-0:2.277.3.1620393611-1.el8",
          "openshift-4.7::el8:jenkins-0:2.277.3.1620393611-1.el8.src",
          "openshift-4.8::el8:jenkins-0:2.289.1.1624020353-1.el8",
          "openshift-4.8::el8:jenkins-0:2.289.1.1624020353-1.el8.src"
        ],
        "known_affected": [
          "openshift-4:jenkins",
          "openshift-4:jenkins.src",
          "openshift-enterprise-3.11-default:jenkins",
          "openshift-enterprise-3.11-default:jenkins.src"
        ]
      },
      "references": [
        {
          "category": "self",
          "summary": "Canonical URL",
          "url": "https://access.redhat.com/security/cve/CVE-2021-21639"
        },
        {
          "category": "external",
          "summary": "nvd.nist.gov",
          "url": "https://nvd.nist.gov/vuln/detail/CVE-2021-21639"
        },
        {
          "category": "external",
          "summary": "www.cve.org",
          "url": "https://www.cve.org/CVERecord?id=CVE-2021-21639"
        }
      ],
      "remediations": [
        {
          "category": "no_fix_planned",
          "details": "Will not fix",
          "product_ids": [
            "openshift-enterprise-3.11-default:jenkins",
            "openshift-enterprise-3.11-default:jenkins.src"
          ]
        },
        {
          "category": "none_available",
          "details": "Affected",
          "product_ids": [
            "openshift-4:jenkins",
            "openshift-4:jenkins.src"
          ]
        },
        {
          "category": "vendor_fix",
          "date": "2021-05-19T15:03:37+00:00",
          "details": "Apply advisory RHSA-2021:1551 as per vendors instructions.",
          "product_ids": [
            "openshift-4.7::el8:jenkins-0:2.277.3.1620393611-1.el8",
            "openshift-4.7::el8:jenkins-0:2.277.3.1620393611-1.el8.src"
          ],
          "url": "https://access.redhat.com/errata/RHSA-2021:1551"
        },
        {
          "category": "vendor_fix",
          "date": "2021-07-27T22:36:55+00:00",
          "details": "Apply advisory RHSA-2021:2437 as per vendors instructions.",
          "product_ids": [
            "openshift-4.8::el8:jenkins-0:2.289.1.1624020353-1.el8",
            "openshift-4.8::el8:jenkins-0:2.289.1.1624020353-1.el8.src"
          ],
          "url": "https://access.redhat.com/errata/RHSA-2021:2437"
        }
      ],
      "scores": [
        {
          "cvss_v3": {
            "version": "3.1",
            "vectorString": "CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:L/A:N",
            "baseScore": 3.1,
            "baseSeverity": "LOW"
          },
          "products": [
            "openshift-4.7::el8:jenkins-0:2.277.3.1620393611-1.el8",
            "openshift-4.7::el8:jenkins-0:2.277.3.1620393611-1.el8.src",
            "openshift-4.8::el8:jenkins-0:2.289.1.1624020353-1.el8",
            "openshift-4.8::el8:jenkins-0:2.289.1.1624020353-1.el8.src",
            "openshift-4:jenkins",
            "openshift-4:jenkins.src",
            "openshift-enterprise-3.11-default:jenkins",
            "openshift-enterprise-3.11-default:jenkins.src"
          ]
        }
      ],
      "threats": [
        {
          "category": "impact",
          "details": "Low",
          "product_ids": [
            "openshift-4.7::el8:jenkins-0:2.277.3.1620393611-1.el8",
            "openshift-4.7::el8:jenkins-0:2.277.3.1620393611-1.el8.src",
            "openshift-4.8::el8:jenkins-0:2.289.1.1624020353-1.el8",
            "openshift-4.8::el8:jenkins-0:2.289.1.1624020353-1.el8.src",
            "openshift-4:jenkins",
            "openshift-4:jenkins.src",
            "openshift-enterprise-3.11-default:jenkins",
            "openshift-enterprise-3.11-default:jenkins.src"
          ]
        }
      ],
      "title": "lack of type validation in agent related REST API"
    }
  ]
}