Security advisory

{
  "id": "3a861995a3057829e7692ff192ac2609c4d3459e20647465f5d1a82e97c454e4",
  "url": "https://osv.dev/vulnerability/CVE-2021-22181",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "CVE-2021-22181",
    "summary": "A denial of service vulnerability in GitLab CE/EE affecting all versions since 11.8 allows an attacker to create a recursive pipeline relationship and exhaust resources.",
    "evidence": "osv:CVE-2021-22181",
    "products": [],
    "severity": "medium",
    "structured": {
      "id": "CVE-2021-22181",
      "aliases": [
        "BIT-gitlab-2021-22181",
        "CVE-2021-22181"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://gitlab.com/gitlab-org/gitlab",
              "type": "GIT",
              "events": [
                {
                  "introduced": "002a28279f5b3fd229f929bb1f40eb7b5fc87ee9"
                },
                {
                  "fixed": "7327f6c9bf4fa71bc518992f995cc7648c102c07"
                },
                {
                  "introduced": "47f41a4a74f364c731aafd34a93bddb630f62230"
                },
                {
                  "fixed": "d6e2cf8d41eceec30c20b921d9779bbd539ae594"
                },
                {
                  "introduced": "12a3ec8fb4a540576b2d47247bc86ea7e2c7565b"
                },
                {
                  "fixed": "865a93b831bfcc63d49d6f2d14ccfafe216e4a99"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:gitlab:gitlab:*:*:*:*:community:*:*:*",
                    "range": [
                      {
                        "introduced": "11.8.0"
                      },
                      {
                        "fixed": "13.10.5"
                      }
                    ],
                    "source": "CPE_RANGE"
                  },
                  {
                    "cpe": "cpe:2.3:a:gitlab:gitlab:*:*:*:*:enterprise:*:*:*",
                    "range": [
                      {
                        "introduced": "11.8.0"
                      },
                      {
                        "fixed": "13.10.5"
                      }
                    ],
                    "source": "CPE_RANGE"
                  },
                  {
                    "cpe": "cpe:2.3:a:gitlab:gitlab:*:*:*:*:community:*:*:*",
                    "range": [
                      {
                        "introduced": "13.11.0"
                      },
                      {
                        "fixed": "13.11.5"
                      }
                    ],
                    "source": "CPE_RANGE"
                  },
                  {
                    "cpe": "cpe:2.3:a:gitlab:gitlab:*:*:*:*:enterprise:*:*:*",
                    "range": [
                      {
                        "introduced": "13.11.0"
                      },
                      {
                        "fixed": "13.11.5"
                      }
                    ],
                    "source": "CPE_RANGE"
                  },
                  {
                    "cpe": "cpe:2.3:a:gitlab:gitlab:*:*:*:*:community:*:*:*",
                    "range": [
                      {
                        "introduced": "13.12.0"
                      },
                      {
                        "fixed": "13.12.2"
                      }
                    ],
                    "source": "CPE_RANGE"
                  },
                  {
                    "cpe": "cpe:2.3:a:gitlab:gitlab:*:*:*:*:enterprise:*:*:*",
                    "range": [
                      {
                        "introduced": "13.12.0"
                      },
                      {
                        "fixed": "13.12.2"
                      }
                    ],
                    "source": "CPE_RANGE"
                  }
                ]
              }
            }
          ],
          "versions": [
            "v13.11.4-ee",
            "v13.12.1-ee",
            "v13.11.3-ee",
            "v13.12.0-ee",
            "v13.11.1-ee",
            "v13.11.0-ee"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2021-22181.json"
          }
        }
      ],
      "modified": "2026-10-30T10:30:54.080318359Z",
      "provider": "osv",
      "references": [
        "https://gitlab.com/gitlab-org/cves/-/blob/master/2021/CVE-2021-22181.json",
        "https://gitlab.com/gitlab-org/gitlab/-/issues/249100"
      ],
      "provider_metadata": {}
    },
    "related_cves": [
      {
        "value": "CVE-2021-22181",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 435740,
  "published_at": "2021-06-11T16:15:09.093+00:00"
}