{
  "affected": [
    {
      "ranges": [
        {
          "database_specific": {
            "versions": [
              {
                "introduced": "0"
              },
              {
                "fixed": "11.1.7"
              },
              {
                "introduced": "0"
              },
              {
                "fixed": "11.1.7"
              },
              {
                "introduced": "11.2.0"
              },
              {
                "fixed": "11.2.4"
              },
              {
                "introduced": "11.2.0"
              },
              {
                "fixed": "11.2.4"
              },
              {
                "introduced": "0"
              },
              {
                "last_affected": "11.3.0"
              },
              {
                "introduced": "0"
              },
              {
                "last_affected": "11.3.0"
              }
            ]
          },
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "e7edd157fede812f5cc41cb3fae27370f2e4b5e4"
            },
            {
              "introduced": "0"
            },
            {
              "fixed": "e7edd157fede812f5cc41cb3fae27370f2e4b5e4"
            },
            {
              "introduced": "44dbeccbe1039cb1d42d8502655ffb0bce3ae803"
            },
            {
              "fixed": "b5c7a88f7aab21a4f571916eab846340b52ad2f7"
            },
            {
              "introduced": "44dbeccbe1039cb1d42d8502655ffb0bce3ae803"
            },
            {
              "fixed": "b5c7a88f7aab21a4f571916eab846340b52ad2f7"
            },
            {
              "introduced": "0"
            },
            {
              "last_affected": "1bbe39452664021af90851aef8527ce5e850343e"
            },
            {
              "introduced": "0"
            },
            {
              "last_affected": "1bbe39452664021af90851aef8527ce5e850343e"
            }
          ],
          "repo": "https://gitlab.com/gitlab-org/gitlab",
          "type": "GIT"
        }
      ]
    }
  ],
  "details": "An issue was discovered in GitLab Community and Enterprise Edition before 11.1.7, 11.2.x before 11.2.4, and 11.3.x before 11.3.1. There is Server-Side Request Forgery (SSRF) via a loopback address to the validate_localhost function in url_blocker.rb.",
  "id": "CVE-2018-17452",
  "modified": "2026-03-14T13:51:12.928831880Z",
  "published": "2023-04-15T23:15:13.520Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://about.gitlab.com/blog/categories/releases/"
    },
    {
      "type": "ADVISORY",
      "url": "https://about.gitlab.com/releases/2018/10/01/security-release-gitlab-11-dot-3-dot-1-released/"
    }
  ],
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ]
}