Security advisory

{
  "id": "274a8017534e2d754957539b37286067ac6f79e48e4c479f29871b23c29cfb3c",
  "url": "https://osv.dev/vulnerability/CVE-2020-13355",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "CVE-2020-13355",
    "summary": "An issue has been discovered in GitLab CE/EE affecting all versions starting from 8.14. A path traversal is found in LFS Upload that allows attacker to overwrite certain specific paths on the server. Affected versions are: >=8.14, <13.3.9,>=13.4, <13.4.5,>=13.5, <13.5.2.",
    "evidence": "osv:CVE-2020-13355",
    "products": [],
    "severity": "high",
    "structured": {
      "id": "CVE-2020-13355",
      "aliases": [
        "BIT-gitlab-2020-13355",
        "CVE-2020-13355"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://gitlab.com/gitlab-org/gitlab",
              "type": "GIT",
              "events": [
                {
                  "introduced": "4ae57e0b374bbb8e461305d8a7a68b550bdd768d"
                },
                {
                  "fixed": "e5a4c9dc9077d8e96e74118cd00dfa452bd4522b"
                },
                {
                  "introduced": "2f8ec2ebf58d8d4885127b9715b143e6756f2df1"
                },
                {
                  "fixed": "6f3f825a6bcc61399d54fcbebfcbed572cf792d8"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:gitlab:gitlab:*:*:*:*:community:*:*:*",
                    "range": [
                      {
                        "introduced": "8.14.0"
                      },
                      {
                        "fixed": "13.3.9"
                      }
                    ],
                    "source": "CPE_RANGE"
                  },
                  {
                    "cpe": "cpe:2.3:a:gitlab:gitlab:*:*:*:*:enterprise:*:*:*",
                    "range": [
                      {
                        "introduced": "8.14.0"
                      },
                      {
                        "fixed": "13.3.9"
                      }
                    ],
                    "source": "CPE_RANGE"
                  },
                  {
                    "cpe": "cpe:2.3:a:gitlab:gitlab:*:*:*:*:community:*:*:*",
                    "range": [
                      {
                        "introduced": "13.5.0"
                      },
                      {
                        "fixed": "13.5.2"
                      }
                    ],
                    "source": "CPE_RANGE"
                  },
                  {
                    "cpe": "cpe:2.3:a:gitlab:gitlab:*:*:*:*:enterprise:*:*:*",
                    "range": [
                      {
                        "introduced": "13.5.0"
                      },
                      {
                        "fixed": "13.5.2"
                      }
                    ],
                    "source": "CPE_RANGE"
                  }
                ]
              }
            }
          ],
          "versions": [
            "v13.5.1-ee",
            "v13.5.0-ee"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2020-13355.json"
          }
        }
      ],
      "modified": "2026-10-30T10:30:32.094508507Z",
      "provider": "osv",
      "references": [
        "https://gitlab.com/gitlab-org/cves/-/blob/master/2020/CVE-2020-13355.json",
        "https://gitlab.com/gitlab-org/gitlab/-/issues/255886",
        "https://hackerone.com/reports/990800"
      ],
      "provider_metadata": {
        "unresolved_ranges": [
          {
            "cpes": [
              "cpe:2.3:a:gitlab:gitlab:*:*:*:*:community:*:*:*",
              "cpe:2.3:a:gitlab:gitlab:*:*:*:*:enterprise:*:*:*"
            ],
            "vendor_product": "gitlab:gitlab",
            "extracted_events": [
              {
                "range": [
                  {
                    "introduced": "13.4.0"
                  },
                  {
                    "fixed": "13.4.5"
                  },
                  {
                    "introduced": "13.4.0"
                  },
                  {
                    "fixed": "13.4.5"
                  }
                ],
                "source": "CPE_RANGE"
              }
            ]
          }
        ]
      }
    },
    "related_cves": [
      {
        "value": "CVE-2020-13355",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 433680,
  "published_at": "2020-11-19T00:15:11.98+00:00"
}