Security advisory

{
  "id": "0f0b2166c6346b43298269b0ba59ff60233a6603d31b6b268fa8d992132d0bcb",
  "url": "https://osv.dev/vulnerability/CVE-2021-22196",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "CVE-2021-22196",
    "summary": "An issue has been discovered in GitLab CE/EE affecting all versions starting from 13.4. It was possible to exploit a stored cross-site-scripting in merge request via a specifically crafted branch name.",
    "evidence": "osv:CVE-2021-22196",
    "products": [],
    "severity": "medium",
    "structured": {
      "id": "CVE-2021-22196",
      "aliases": [
        "BIT-gitlab-2021-22196",
        "CVE-2021-22196"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://gitlab.com/gitlab-org/gitlab",
              "type": "GIT",
              "events": [
                {
                  "introduced": "e70802d39ca8751d0f167d736a34a39c1dc695bc"
                },
                {
                  "fixed": "2378e1fea098afa15fc0bd4aa52a102c0c1c31b4"
                },
                {
                  "introduced": "a1a60e9f753f4e99f2b13b24028a6092a897cc06"
                },
                {
                  "fixed": "b5cf6b82d7d8da2f4bccaa1c3018bfdff36963dd"
                },
                {
                  "introduced": "0d2d9558dba50b1496bf368954318d465825e8e3"
                },
                {
                  "fixed": "b91b666b65e7c56e9380bd1ce6b5a05d00ac37f2"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:gitlab:gitlab:*:*:*:*:community:*:*:*",
                    "range": [
                      {
                        "introduced": "13.4.0"
                      },
                      {
                        "fixed": "13.8.7"
                      }
                    ],
                    "source": "CPE_RANGE"
                  },
                  {
                    "cpe": "cpe:2.3:a:gitlab:gitlab:*:*:*:*:enterprise:*:*:*",
                    "range": [
                      {
                        "introduced": "13.4.0"
                      },
                      {
                        "fixed": "13.8.7"
                      }
                    ],
                    "source": "CPE_RANGE"
                  },
                  {
                    "cpe": "cpe:2.3:a:gitlab:gitlab:*:*:*:*:community:*:*:*",
                    "range": [
                      {
                        "introduced": "13.9.0"
                      },
                      {
                        "fixed": "13.9.5"
                      }
                    ],
                    "source": "CPE_RANGE"
                  },
                  {
                    "cpe": "cpe:2.3:a:gitlab:gitlab:*:*:*:*:enterprise:*:*:*",
                    "range": [
                      {
                        "introduced": "13.9.0"
                      },
                      {
                        "fixed": "13.9.5"
                      }
                    ],
                    "source": "CPE_RANGE"
                  },
                  {
                    "cpe": "cpe:2.3:a:gitlab:gitlab:*:*:*:*:community:*:*:*",
                    "range": [
                      {
                        "introduced": "13.10.0"
                      },
                      {
                        "fixed": "13.10.1"
                      }
                    ],
                    "source": "CPE_RANGE"
                  },
                  {
                    "cpe": "cpe:2.3:a:gitlab:gitlab:*:*:*:*:enterprise:*:*:*",
                    "range": [
                      {
                        "introduced": "13.10.0"
                      },
                      {
                        "fixed": "13.10.1"
                      }
                    ],
                    "source": "CPE_RANGE"
                  }
                ]
              }
            }
          ],
          "versions": [
            "v13.10.0-ee",
            "v13.9.3-ee",
            "v13.9.1-ee",
            "v13.9.0-ee"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2021-22196.json"
          }
        }
      ],
      "modified": "2026-10-30T10:30:37.920613742Z",
      "provider": "osv",
      "references": [
        "https://gitlab.com/gitlab-org/cves/-/blob/master/2021/CVE-2021-22196.json",
        "https://gitlab.com/gitlab-org/gitlab/-/issues/254710",
        "https://hackerone.com/reports/977697"
      ],
      "provider_metadata": {}
    },
    "related_cves": [
      {
        "value": "CVE-2021-22196",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 435958,
  "published_at": "2021-04-02T17:15:12.583+00:00"
}