Security advisory

{
  "id": "789385bb4d3da1a7c7d4daeea1ddedcdb171fa427b680269d2ef0140d437889f",
  "url": "https://osv.dev/vulnerability/CVE-2020-13306",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "CVE-2020-13306",
    "summary": "A vulnerability was discovered in GitLab versions before 13.1.10, 13.2.8 and 13.3.4. GitLab Webhook feature could be abused to perform denial of service attacks due to the lack of rate limitation.",
    "evidence": "osv:CVE-2020-13306",
    "products": [],
    "severity": "high",
    "structured": {
      "id": "CVE-2020-13306",
      "aliases": [
        "BIT-gitlab-2020-13306",
        "CVE-2020-13306"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://gitlab.com/gitlab-org/gitlab",
              "type": "GIT",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "f87767a40b6a8c337cfdf7539cad37163b9d141e"
                },
                {
                  "introduced": "ce28f708ec5ca68092e16f55e47710367d32f2a1"
                },
                {
                  "fixed": "593e80a4ee247065d721e03927d8cfee12cb116b"
                },
                {
                  "introduced": "4922d2720ace5802587b8324a77a41b373d08e69"
                },
                {
                  "fixed": "ad7bd7db4124d1f45168ecae80005a8385606809"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:gitlab:gitlab:*:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "0"
                      },
                      {
                        "fixed": "13.1.10"
                      }
                    ],
                    "source": "CPE_RANGE"
                  },
                  {
                    "cpe": "cpe:2.3:a:gitlab:gitlab:*:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "13.2.0"
                      },
                      {
                        "fixed": "13.2.8"
                      }
                    ],
                    "source": "CPE_RANGE"
                  },
                  {
                    "cpe": "cpe:2.3:a:gitlab:gitlab:*:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "13.3.0"
                      },
                      {
                        "fixed": "13.3.4"
                      }
                    ],
                    "source": "CPE_RANGE"
                  }
                ]
              }
            }
          ],
          "versions": [
            "v13.3.2-ee",
            "v13.3.0-ee",
            "v13.3.1-ee",
            "v13.2.4-ee",
            "v13.1.5-ee",
            "v13.2.2-ee",
            "v13.2.1-ee",
            "v13.2.0-ee",
            "v13.1.4-ee",
            "v13.1.1-ee",
            "v13.1.0-rc42-ee",
            "v13.1.0-ee",
            "11-10-0cfa69752d8-74ffd66ae-ee",
            "11-10-0cfa69752d8-0d9531c80-ee",
            "11-10-119f9509d50-6d7537235-ee",
            "v7.3.0-ee",
            "v7.3.0.rc1-ee",
            "v7.2.0.rc5-ee",
            "v7.2.0.rc4-ee",
            "v7.2.0.rc3-ee",
            "v7.2.0.rc2-ee",
            "v7.2.0.rc1-ee",
            "v7.1.0-ee",
            "v7.1.0.rc1-ee",
            "v7.0.0-ee",
            "v6.8.0-ee",
            "v6.7.0-ee",
            "v6.7.0.rc1-ee",
            "v6.6.0-ee",
            "v6.5.0-ee",
            "v6.4.0-ee",
            "v6.3.1-ee",
            "v6.3.0-ee",
            "v6.1.0-ee",
            "v6.0.0-ee",
            "v6.0.0-ee.rc1",
            "v6.0.0-ee.beta",
            "v5.2.0",
            "v5.1.0",
            "v5.0.0",
            "v4.0.0",
            "v4.0.0rc2",
            "v4.0.0rc1",
            "v3.1.0",
            "v3.0.3",
            "v3.0.2",
            "v3.0.1",
            "v3.0.0",
            "v2.9.1",
            "v2.9.0",
            "v2.8.2",
            "v2.8.1",
            "v2.8.0",
            "v2.8.0pre",
            "v2.7.0",
            "v2.7.0pre",
            "v2.6.3",
            "v2.6.2",
            "v2.6.1",
            "v2.6.0",
            "v2.6.0pre",
            "v2.5.0",
            "v2.4.1",
            "v2.4.0",
            "v2.4.0pre",
            "v2.3.1",
            "v2.3.0",
            "v2.3.0pre",
            "v1.2.2",
            "v1.2.1",
            "v1.2.0",
            "v1.2.0pre"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2020-13306.json"
          }
        }
      ],
      "modified": "2026-10-30T10:30:28.581136724Z",
      "provider": "osv",
      "references": [
        "https://gitlab.com/gitlab-org/cves/-/blob/master/2020/CVE-2020-13306.json",
        "https://gitlab.com/gitlab-org/gitlab/-/issues/223681",
        "https://hackerone.com/reports/904134"
      ],
      "provider_metadata": {}
    },
    "related_cves": [
      {
        "value": "CVE-2020-13306",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 433076,
  "published_at": "2020-09-14T22:15:11.207+00:00"
}