Vulnerability-Lookup

CVE-2021-21670 (GCVE-0-2021-21670)

Vulnerability from cvelistv5 – Published: 2021-06-30 16:45 – Updated: 2024-08-03 18:23

Summary

Jenkins 2.299 and earlier, LTS 2.289.1 and earlier allows users to cancel queue items and abort builds of jobs for which they have Item/Cancel permission even when they do not have Item/Read permission.

Severity

4.3 (Medium)


                        
                          CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N

Assigner

jenkins CNA under the mitre root

CNA scorecard E 44/100 over 132 records in the last 180 days details

References

2 references

URL	Tags
https://www.jenkins.io/security/advisory/2021-06-…	x_refsource_CONFIRM
http://www.openwall.com/lists/oss-security/2021/06/30/1	mailing-listx_refsource_MLIST

Impacted products

1 product

Vendor	Product	Version	CPE status
Jenkins project	Jenkins	Affected: unspecified , ≤ 2.299 (custom) Affected: unspecified , ≤ LTS 2.289.1 (custom)	guessed

Show details on NVD website

JSON

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bit-jenkins-2021-21670

Vulnerability from bitnami_vulndb

Published

2024-03-06 11:01

Modified

2026-09-08 08:34

Summary

Details

Jenkins LTS 2.289.1 and earlier allows users to cancel queue items and abort builds of jobs for which they have Item/Cancel permission even when they do not have Item/Read permission.

JSON

To clipboard

{
  "affected": [
    {
      "package": {
        "ecosystem": "Bitnami",
        "name": "jenkins",
        "purl": "pkg:bitnami/jenkins"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "2.300.0"
            }
          ],
          "type": "SEMVER"
        }
      ],
      "severity": [
        {
          "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N",
          "type": "CVSS_V3"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2021-21670"
  ],
  "database_specific": {
    "cpes": [
      "cpe:2.3:a:jenkins:jenkins:*:*:*:*:lts:*:*:*",
      "cpe:2.3:a:jenkins:jenkins:*:*:*:*:-:*:*:*"
    ],
    "severity": "Medium"
  },
  "details": "Jenkins LTS 2.289.1 and earlier allows users to cancel queue items and abort builds of jobs for which they have Item/Cancel permission even when they do not have Item/Read permission.",
  "id": "BIT-jenkins-2021-21670",
  "modified": "2026-09-08T08:34:36.952Z",
  "published": "2024-03-06T11:01:53.406Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "http://www.openwall.com/lists/oss-security/2021/06/30/1"
    },
    {
      "type": "ADVISORY",
      "url": "https://www.jenkins.io/security/advisory/2021-06-30/#SECURITY-2278"
    },
    {
      "type": "WEB",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2021-21670"
    }
  ],
  "schema_version": "1.5.0"
}

CNVD-2021-46869

Vulnerability from cnvd - Published: 2021-07-03

Title

Jenkins访问控制错误漏洞（CNVD-2021-46869）

Description

Jenkins是Jenkins开源的一个应用软件。一个开源自动化服务器Jenkins提供了数百个插件来支持构建，部署和自动化任何项目。 Jenkins存在访问控制错误漏洞，该漏洞源于Jenkins允许用户取消无读取权限的项目。目前没有详细漏洞细节提供。

Severity

中

Patch Name

Jenkins访问控制错误漏洞（CNVD-2021-46869）的补丁

Patch Description

Jenkins是Jenkins开源的一个应用软件。一个开源自动化服务器Jenkins提供了数百个插件来支持构建，部署和自动化任何项目。 Jenkins存在访问控制错误漏洞，该漏洞源于Jenkins允许用户取消无读取权限的项目。目前没有详细漏洞细节提供。目前，供应商发布了安全公告及相关补丁信息，修复了此漏洞。

Formal description

目前厂商已发布升级补丁以修复漏洞，补丁获取链接： https://www.jenkins.io/security/advisory/2021-06-30/#SECURITY-2278

Reference

https://nvd.nist.gov/vuln/detail/CVE-2021-21670

Impacted products

Name
Jenkins Jenkins

Show details on source website

JSON

To clipboard

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  "serverity": "\u4e2d",
  "submitTime": "2021-07-02",
  "title": "Jenkins\u8bbf\u95ee\u63a7\u5236\u9519\u8bef\u6f0f\u6d1e\uff08CNVD-2021-46869\uff09"
}

FKIE_CVE-2021-21670

Vulnerability from fkie_nvd - Published: 2021-06-30 17:15 - Updated: 2026-06-17 03:35

Severity

4.3 (Medium) - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N

Summary

References

URL	Tags
jenkinsci-cert@googlegroups.com	http://www.openwall.com/lists/oss-security/2021/06/30/1	Mailing List, Third Party Advisory
jenkinsci-cert@googlegroups.com	https://www.jenkins.io/security/advisory/2021-06-30/#SECURITY-2278	Vendor Advisory
af854a3a-2127-422b-91ae-364da2661108	http://www.openwall.com/lists/oss-security/2021/06/30/1	Mailing List, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108	https://www.jenkins.io/security/advisory/2021-06-30/#SECURITY-2278	Vendor Advisory

Impacted products

	Vendor	Product	Version
	jenkins	jenkins	*
	jenkins	jenkins	*

JSON

To clipboard

{
  "affected": [
    {
      "affectedData": [
        {
          "product": "Jenkins",
          "vendor": "Jenkins project",
          "versions": [
            {
              "lessThanOrEqual": "2.299",
              "status": "affected",
              "version": "unspecified",
              "versionType": "custom"
            },
            {
              "lessThanOrEqual": "LTS 2.289.1",
              "status": "affected",
              "version": "unspecified",
              "versionType": "custom"
            }
          ]
        }
      ],
      "source": "jenkinsci-cert@googlegroups.com"
    }
  ],
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:jenkins:jenkins:*:*:*:*:lts:*:*:*",
              "matchCriteriaId": "EEBF02F6-06E0-4F7B-8E0E-2E4F2270E297",
              "versionEndExcluding": "2.289.2",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:a:jenkins:jenkins:*:*:*:*:-:*:*:*",
              "matchCriteriaId": "1C5962A8-EF27-47EE-A95B-E1B5C5367E84",
              "versionEndExcluding": "2.300",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "Jenkins 2.299 and earlier, LTS 2.289.1 and earlier allows users to cancel queue items and abort builds of jobs for which they have Item/Cancel permission even when they do not have Item/Read permission."
    },
    {
      "lang": "es",
      "value": "Jenkins versiones 2.299 y anteriores, versiones LTS 2.289.1 y anteriores, permiten a usuarios cancelar elementos de la cola y abortar construcciones de trabajos para los que tienen permiso de Elemento/Cancelaci\u00f3n incluso cuando no tienen permiso de Elemento/Lectura"
    }
  ],
  "id": "CVE-2021-21670",
  "lastModified": "2026-06-17T03:35:58.163",
  "metrics": {
    "cvssMetricV2": [
      {
        "acInsufInfo": false,
        "baseSeverity": "MEDIUM",
        "cvssData": {
          "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",
          "version": "2.0"
        },
        "exploitabilityScore": 8.0,
        "impactScore": 2.9,
        "obtainAllPrivilege": false,
        "obtainOtherPrivilege": false,
        "obtainUserPrivilege": false,
        "source": "nvd@nist.gov",
        "type": "Primary",
        "userInteractionRequired": false
      }
    ],
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "NONE",
          "baseScore": 4.3,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "NONE",
          "integrityImpact": "LOW",
          "privilegesRequired": "LOW",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N",
          "version": "3.1"
        },
        "exploitabilityScore": 2.8,
        "impactScore": 1.4,
        "source": "nvd@nist.gov",
        "type": "Primary"
      }
    ]
  },
  "published": "2021-06-30T17:15:08.900",
  "references": [
    {
      "source": "jenkinsci-cert@googlegroups.com",
      "tags": [
        "Mailing List",
        "Third Party Advisory"
      ],
      "url": "http://www.openwall.com/lists/oss-security/2021/06/30/1"
    },
    {
      "source": "jenkinsci-cert@googlegroups.com",
      "tags": [
        "Vendor Advisory"
      ],
      "url": "https://www.jenkins.io/security/advisory/2021-06-30/#SECURITY-2278"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Mailing List",
        "Third Party Advisory"
      ],
      "url": "http://www.openwall.com/lists/oss-security/2021/06/30/1"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Vendor Advisory"
      ],
      "url": "https://www.jenkins.io/security/advisory/2021-06-30/#SECURITY-2278"
    }
  ],
  "sourceIdentifier": "jenkinsci-cert@googlegroups.com",
  "vulnStatus": "Modified"
}

GHSA-Q4WP-8C99-69PW

Vulnerability from github – Published: 2022-05-24 19:06 – Updated: 2022-12-16 15:22

Summary

Improper permission checks allow canceling queue items and aborting builds in Jenkins

Details

Jenkins 2.300, LTS 2.289.2 requires that users have Item/Read permission for applicable types in addition to Item/Cancel permission.

As a workaround on earlier versions of Jenkins, do not grant Item/Cancel permission to users who do not have Item/Read permission.

Severity

4.3 (Medium)


                  
                    CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N

Show details on source website

JSON

To clipboard

{
  "affected": [
    {
      "database_specific": {
        "last_known_affected_version_range": "\u003c= 2.289.1"
      },
      "package": {
        "ecosystem": "Maven",
        "name": "org.jenkins-ci.main:jenkins-core"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "2.289.2"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "database_specific": {
        "last_known_affected_version_range": "\u003c= 2.299"
      },
      "package": {
        "ecosystem": "Maven",
        "name": "org.jenkins-ci.main:jenkins-core"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "2.292"
            },
            {
              "fixed": "2.300"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2021-21670"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-863"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2022-12-16T15:22:17Z",
    "nvd_published_at": "2021-06-30T17:15:00Z",
    "severity": "MODERATE"
  },
  "details": "Jenkins 2.299 and earlier, LTS 2.289.1 and earlier allows users to cancel queue items and abort builds of jobs for which they have Item/Cancel permission even when they do not have Item/Read permission.\n\nJenkins 2.300, LTS 2.289.2 requires that users have Item/Read permission for applicable types in addition to Item/Cancel permission.\n\nAs a workaround on earlier versions of Jenkins, do not grant Item/Cancel permission to users who do not have Item/Read permission.",
  "id": "GHSA-q4wp-8c99-69pw",
  "modified": "2022-12-16T15:22:17Z",
  "published": "2022-05-24T19:06:36Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2021-21670"
    },
    {
      "type": "WEB",
      "url": "https://github.com/jenkinsci/jenkins/commit/86b7d7e789586575522650c60d591605facb1d70"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/jenkinsci/jenkins"
    },
    {
      "type": "WEB",
      "url": "https://www.jenkins.io/security/advisory/2021-06-30/#SECURITY-2278"
    },
    {
      "type": "WEB",
      "url": "http://www.openwall.com/lists/oss-security/2021/06/30/1"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N",
      "type": "CVSS_V3"
    }
  ],
  "summary": "Improper permission checks allow canceling queue items and aborting builds in Jenkins"
}

GSD-2021-21670

Vulnerability from gsd - Updated: 2023-12-13 01:23

Details

Aliases

CVE-2021-21670

Aliases

CVE-2021-21670

JSON

To clipboard

{
  "GSD": {
    "alias": "CVE-2021-21670",
    "description": "Jenkins 2.299 and earlier, LTS 2.289.1 and earlier allows users to cancel queue items and abort builds of jobs for which they have Item/Cancel permission even when they do not have Item/Read permission.",
    "id": "GSD-2021-21670",
    "references": [
      "https://access.redhat.com/errata/RHSA-2021:3820",
      "https://access.redhat.com/errata/RHBA-2021:3396",
      "https://access.redhat.com/errata/RHBA-2021:3033",
      "https://security.archlinux.org/CVE-2021-21670"
    ]
  },
  "gsd": {
    "metadata": {
      "exploitCode": "unknown",
      "remediation": "unknown",
      "reportConfidence": "confirmed",
      "type": "vulnerability"
    },
    "osvSchema": {
      "aliases": [
        "CVE-2021-21670"
      ],
      "details": "Jenkins 2.299 and earlier, LTS 2.289.1 and earlier allows users to cancel queue items and abort builds of jobs for which they have Item/Cancel permission even when they do not have Item/Read permission.",
      "id": "GSD-2021-21670",
      "modified": "2023-12-13T01:23:10.828859Z",
      "schema_version": "1.4.0"
    }
  },
  "namespaces": {
    "cve.org": {
      "CVE_data_meta": {
        "ASSIGNER": "jenkinsci-cert@googlegroups.com",
        "ID": "CVE-2021-21670",
        "STATE": "PUBLIC"
      },
      "affects": {
        "vendor": {
          "vendor_data": [
            {
              "product": {
                "product_data": [
                  {
                    "product_name": "Jenkins",
                    "version": {
                      "version_data": [
                        {
                          "version_affected": "\u003c=",
                          "version_name": "unspecified",
                          "version_value": "2.299"
                        }
                      ]
                    }
                  }
                ]
              },
              "vendor_name": "Jenkins project"
            }
          ]
        }
      },
      "data_format": "MITRE",
      "data_type": "CVE",
      "data_version": "4.0",
      "description": {
        "description_data": [
          {
            "lang": "eng",
            "value": "Jenkins 2.299 and earlier, LTS 2.289.1 and earlier allows users to cancel queue items and abort builds of jobs for which they have Item/Cancel permission even when they do not have Item/Read permission."
          }
        ]
      },
      "problemtype": {
        "problemtype_data": [
          {
            "description": [
              {
                "lang": "eng",
                "value": "n/a"
              }
            ]
          }
        ]
      },
      "references": {
        "reference_data": [
          {
            "name": "https://www.jenkins.io/security/advisory/2021-06-30/#SECURITY-2278",
            "refsource": "MISC",
            "url": "https://www.jenkins.io/security/advisory/2021-06-30/#SECURITY-2278"
          },
          {
            "name": "http://www.openwall.com/lists/oss-security/2021/06/30/1",
            "refsource": "MISC",
            "url": "http://www.openwall.com/lists/oss-security/2021/06/30/1"
          }
        ]
      }
    },
    "gitlab.com": {
      "advisories": [
        {
          "affected_range": "[2.289.2,2.300)",
          "affected_versions": "All versions after 2.289.2 before 2.300",
          "cvss_v2": "AV:N/AC:L/Au:S/C:N/I:P/A:N",
          "cvss_v3": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N",
          "cwe_ids": [
            "CWE-1035",
            "CWE-863",
            "CWE-937"
          ],
          "date": "2021-07-06",
          "description": "Jenkins allows users to cancel queue items and abort builds of jobs for which they have `Item/Cancel` permission even when they do not have `Item/Read` permission.",
          "fixed_versions": [
            "2.300"
          ],
          "identifier": "CVE-2021-21670",
          "identifiers": [
            "CVE-2021-21670"
          ],
          "not_impacted": "All versions starting from 2.300",
          "package_slug": "maven/org.jenkins-ci.main/jenkins-core",
          "pubdate": "2021-06-30",
          "solution": "Upgrade to version 2.300 or above.",
          "title": "Incorrect Authorization",
          "urls": [
            "https://nvd.nist.gov/vuln/detail/CVE-2021-21670",
            "https://www.jenkins.io/security/advisory/2021-06-30/#SECURITY-2278"
          ],
          "uuid": "9b2ad9c9-da82-4a8d-95e4-0d9a8e630611"
        }
      ]
    },
    "nvd.nist.gov": {
      "configurations": {
        "CVE_data_version": "4.0",
        "nodes": [
          {
            "children": [],
            "cpe_match": [
              {
                "cpe23Uri": "cpe:2.3:a:jenkins:jenkins:*:*:*:*:-:*:*:*",
                "cpe_name": [],
                "versionEndExcluding": "2.300",
                "vulnerable": true
              },
              {
                "cpe23Uri": "cpe:2.3:a:jenkins:jenkins:*:*:*:*:lts:*:*:*",
                "cpe_name": [],
                "versionEndExcluding": "2.289.2",
                "vulnerable": true
              }
            ],
            "operator": "OR"
          }
        ]
      },
      "cve": {
        "CVE_data_meta": {
          "ASSIGNER": "jenkinsci-cert@googlegroups.com",
          "ID": "CVE-2021-21670"
        },
        "data_format": "MITRE",
        "data_type": "CVE",
        "data_version": "4.0",
        "description": {
          "description_data": [
            {
              "lang": "en",
              "value": "Jenkins 2.299 and earlier, LTS 2.289.1 and earlier allows users to cancel queue items and abort builds of jobs for which they have Item/Cancel permission even when they do not have Item/Read permission."
            }
          ]
        },
        "problemtype": {
          "problemtype_data": [
            {
              "description": []
            }
          ]
        },
        "references": {
          "reference_data": [
            {
              "name": "https://www.jenkins.io/security/advisory/2021-06-30/#SECURITY-2278",
              "refsource": "CONFIRM",
              "tags": [
                "Vendor Advisory"
              ],
              "url": "https://www.jenkins.io/security/advisory/2021-06-30/#SECURITY-2278"
            },
            {
              "name": "[oss-security] 20210630 Multiple vulnerabilities in Jenkins and Jenkins plugins",
              "refsource": "MLIST",
              "tags": [
                "Mailing List",
                "Third Party Advisory"
              ],
              "url": "http://www.openwall.com/lists/oss-security/2021/06/30/1"
            }
          ]
        }
      },
      "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",
            "version": "2.0"
          },
          "exploitabilityScore": 8.0,
          "impactScore": 2.9,
          "obtainAllPrivilege": false,
          "obtainOtherPrivilege": false,
          "obtainUserPrivilege": false,
          "severity": "MEDIUM",
          "userInteractionRequired": false
        },
        "baseMetricV3": {
          "cvssV3": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "NONE",
            "baseScore": 4.3,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "NONE",
            "integrityImpact": "LOW",
            "privilegesRequired": "LOW",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N",
            "version": "3.1"
          },
          "exploitabilityScore": 2.8,
          "impactScore": 1.4
        }
      },
      "lastModifiedDate": "2023-10-25T18:16Z",
      "publishedDate": "2021-06-30T17:15Z"
    }
  }
}

RHBA-2021:3033

Vulnerability from csaf_redhat - Published: 2021-08-17 12:16 - Updated: 2026-08-04 21:40

Summary

Red Hat Bug Fix Advisory: OpenShift Container Platform 4.7.24 packages update

Severity

Moderate

Scope

2 vulnerabilities in this advisory, including CVE-2021-21670.

CVE-2021-21670

Incorrect Authorization vulnerability was found in Jenkins. Users with Item/Cancel permission are able to cancel queue items and abort builds of jobs even when they do not have Item/Read permission.

4.3 (Medium)


                
                  CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N

Fixed: 2 products Known not affected: 13 products

https://access.redhat.com/errata/RHBA-2021:3033

Open the full advisory

RHBA-2021:3396

Vulnerability from csaf_redhat - Published: 2021-09-08 22:01 - Updated: 2026-08-04 21:40

Summary

Red Hat Bug Fix Advisory: OpenShift Container Platform 4.6.44 packages update

Severity

Moderate

Scope

2 vulnerabilities in this advisory, including CVE-2021-21670.

CVE-2021-21670

Incorrect Authorization vulnerability was found in Jenkins. Users with Item/Cancel permission are able to cancel queue items and abort builds of jobs even when they do not have Item/Read permission.

4.3 (Medium)


                
                  CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N

Fixed: 2 products Known not affected: 41 products

https://access.redhat.com/errata/RHBA-2021:3396

Open the full advisory

RHBA-2021_3033

Vulnerability from csaf_redhat - Published: 2021-08-17 12:16 - Updated: 2024-11-22 17:21

Summary

Red Hat Bug Fix Advisory: OpenShift Container Platform 4.7.24 packages update

Severity

Moderate

Scope

2 vulnerabilities in this advisory, including CVE-2021-21670.

CVE-2021-21670

Incorrect Authorization vulnerability was found in Jenkins. Users with Item/Cancel permission are able to cancel queue items and abort builds of jobs even when they do not have Item/Read permission.

4.3 (Medium)


                
                  CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N

Fixed: 2 products Known not affected: 13 products

https://access.redhat.com/errata/RHBA-2021:3033

Open the full advisory

RHBA-2021_3396

Vulnerability from csaf_redhat - Published: 2021-09-08 22:01 - Updated: 2024-11-22 17:22

Summary

Red Hat Bug Fix Advisory: OpenShift Container Platform 4.6.44 packages update

Severity

Moderate

Scope

2 vulnerabilities in this advisory, including CVE-2021-21670.

CVE-2021-21670

Incorrect Authorization vulnerability was found in Jenkins. Users with Item/Cancel permission are able to cancel queue items and abort builds of jobs even when they do not have Item/Read permission.

4.3 (Medium)


                
                  CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N

Fixed: 2 products Known not affected: 41 products

https://access.redhat.com/errata/RHBA-2021:3396

Open the full advisory

RHSA-2021:3820

Vulnerability from csaf_redhat - Published: 2021-10-19 20:23 - Updated: 2026-08-04 21:03

Summary

Red Hat Security Advisory: OpenShift Container Platform 4.8.15 packages and security update

Severity

Moderate

Scope

6 vulnerabilities in this advisory, including CVE-2021-21670.

CVE-2021-21670

Incorrect Authorization vulnerability was found in Jenkins. Users with Item/Cancel permission are able to cancel queue items and abort builds of jobs even when they do not have Item/Read permission.

4.3 (Medium)


                
                  CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N

Fixed: 2 products Known not affected: 53 products

https://access.redhat.com/errata/RHSA-2021:3820

Open the full advisory

Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Vulnerability timeline

Sightings and recorded dates, grouped by day · UTC

Order JSON

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The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.

Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.

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CVE-2021-21670 (GCVE-0-2021-21670)

Vulnerability from bitnami_vulndb

Tags

Sightings

Nomenclature

Vulnerability timeline

Related by attack behaviour