Security advisory

{
  "id": "c87728441955215895d4270505645393237a978137a791e0e81a0f13cfe18cd0",
  "url": "https://osv.dev/vulnerability/CVE-2020-13293",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "CVE-2020-13293",
    "summary": "In GitLab before 13.0.12, 13.1.6 and 13.2.3 using a branch with a hexadecimal name could override an existing hash.",
    "evidence": "osv:CVE-2020-13293",
    "products": [],
    "severity": "high",
    "structured": {
      "id": "CVE-2020-13293",
      "aliases": [
        "BIT-gitlab-2020-13293",
        "CVE-2020-13293"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:L"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://gitlab.com/gitlab-org/gitlab",
              "type": "GIT",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "ddb69577a83dca20cfcc9728cb74d1e9d3b6069b"
                },
                {
                  "introduced": "1fa237df2f46d34bd56dd8d018183c756094c2e0"
                },
                {
                  "fixed": "3795509594b5112a3f7bacfb8444665af9c6dfbf"
                },
                {
                  "introduced": "ce28f708ec5ca68092e16f55e47710367d32f2a1"
                },
                {
                  "fixed": "640e26955147b09d0a4bb43d7b5bc18f9e10d397"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:gitlab:gitlab:*:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "1.0.0"
                      },
                      {
                        "fixed": "13.0.12"
                      }
                    ],
                    "source": "CPE_RANGE"
                  },
                  {
                    "cpe": "cpe:2.3:a:gitlab:gitlab:*:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "13.1.0"
                      },
                      {
                        "fixed": "13.1.6"
                      }
                    ],
                    "source": "CPE_RANGE"
                  },
                  {
                    "cpe": "cpe:2.3:a:gitlab:gitlab:*:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "13.2.0"
                      },
                      {
                        "fixed": "13.2.3"
                      }
                    ],
                    "source": "CPE_RANGE"
                  }
                ]
              }
            }
          ],
          "versions": [
            "v13.0.10-ee",
            "v13.1.5-ee",
            "v13.2.2-ee",
            "v13.2.1-ee",
            "v13.2.0-ee",
            "v13.1.4-ee",
            "v13.0.7-ee",
            "v13.1.1-ee",
            "v13.0.5-ee",
            "v13.1.0-ee",
            "v13.0.3-ee",
            "v13.0.2-ee",
            "v13.0.0-ee",
            "v13.0.0-rc42-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-2020-13293.json"
          }
        }
      ],
      "modified": "2026-10-30T10:30:18.987569806Z",
      "provider": "osv",
      "references": [
        "https://gitlab.com/gitlab-org/cves/-/blob/master/2020/CVE-2020-13293.json",
        "https://gitlab.com/gitlab-org/gitlab/-/issues/202690",
        "https://hackerone.com/reports/790634"
      ],
      "provider_metadata": {}
    },
    "related_cves": [
      {
        "value": "CVE-2020-13293",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 440327,
  "published_at": "2020-08-10T14:15:12.907+00:00"
}