Security advisory

{
  "id": "e17d5eb1370f33dd747faa952c5ee20931321d78f69303a91a5ec6eb0c3cc830",
  "url": "https://osv.dev/vulnerability/CVE-2020-28991",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "CVE-2020-28991",
    "summary": "Gitea 0.9.99 through 1.12.x before 1.12.6 does not prevent a git protocol path that specifies a TCP port number and also contains newlines (with URL encoding) in ParseRemoteAddr in modules/auth/repo_form.go.",
    "evidence": "osv:CVE-2020-28991",
    "products": [],
    "severity": "critical",
    "structured": {
      "id": "CVE-2020-28991",
      "aliases": [
        "BIT-gitea-2020-28991",
        "CVE-2020-28991",
        "GHSA-r7h7-chh4-5rvm"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/go-gitea/gitea",
              "type": "GIT",
              "events": [
                {
                  "introduced": "6bcff7828f117af8d51285ce3acba01a7e40a867"
                },
                {
                  "fixed": "53b89c34742855e0c5a7f989d6506f02791678af"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:gitea:gitea:*:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "0.9.99"
                      },
                      {
                        "fixed": "1.12.6"
                      }
                    ],
                    "source": "CPE_RANGE"
                  },
                  {
                    "range": [
                      {
                        "fixed": "53b89c34742855e0c5a7f989d6506f02791678af"
                      }
                    ],
                    "source": "REFERENCES_TAG",
                    "original_tag": "v1.12.6"
                  }
                ]
              }
            }
          ],
          "versions": [
            "v1.12.5",
            "v1.12.4",
            "v1.12.3",
            "v1.12.2",
            "v1.12.1",
            "v1.12.0",
            "v1.12.0-rc2",
            "v1.12.0-rc1",
            "v1.12.0-dev",
            "v1.10.5",
            "v1.11.0-rc1",
            "v1.10.0-rc1",
            "v1.11.0-dev",
            "v1.9.0-rc1",
            "v1.10.0-dev",
            "v1.9.0-dev",
            "v1.7.0-dev",
            "v1.6.0-rc1",
            "v1.6.0-dev",
            "v1.5.0-rc1",
            "v1.5.0-dev",
            "v1.1.0",
            "v1.0.0",
            "v0.9.99"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2020-28991.json"
          }
        }
      ],
      "modified": "2026-10-24T10:47:49.532748561Z",
      "provider": "osv",
      "references": [
        "https://github.com/go-gitea/gitea/releases/tag/v1.12.6",
        "https://github.com/go-gitea/gitea/pull/13525"
      ],
      "provider_metadata": {
        "unresolved_ranges": [
          {
            "cpes": [
              "cpe:2.3:a:gitea:gitea:*:*:*:*:*:*:*:*"
            ],
            "vendor_product": "gitea:gitea",
            "extracted_events": [
              {
                "range": [
                  {
                    "introduced": "0.9.99"
                  },
                  {
                    "fixed": "1.12.6"
                  }
                ],
                "source": "CPE_RANGE"
              }
            ]
          }
        ]
      }
    },
    "related_cves": [
      {
        "value": "CVE-2020-28991",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 441573,
  "published_at": "2020-11-24T01:15:11.833+00:00"
}