Security advisory

{
  "id": "e516de245b00327f0e2decf441a145d3269a8306e16bd2f3b171365d23429551",
  "url": "https://osv.dev/vulnerability/CVE-2021-22218",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "CVE-2021-22218",
    "summary": "All versions of GitLab CE/EE starting from 12.8 before 13.10.5, all versions starting from 13.11 before 13.11.5, and all versions starting from 13.12 before 13.12.2 were affected by an issue in the handling of x509 certificates that could be used to spoof author of signed commits.",
    "evidence": "osv:CVE-2021-22218",
    "products": [],
    "severity": "low",
    "structured": {
      "id": "CVE-2021-22218",
      "aliases": [
        "BIT-gitlab-2021-22218",
        "CVE-2021-22218"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:N/I:L/A:N"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://gitlab.com/gitlab-org/gitlab",
              "type": "GIT",
              "events": [
                {
                  "introduced": "0bd32f788647bb832f3d9eb5746cbda5300e0fa2"
                },
                {
                  "fixed": "7327f6c9bf4fa71bc518992f995cc7648c102c07"
                },
                {
                  "introduced": "47f41a4a74f364c731aafd34a93bddb630f62230"
                },
                {
                  "fixed": "d6e2cf8d41eceec30c20b921d9779bbd539ae594"
                },
                {
                  "introduced": "12a3ec8fb4a540576b2d47247bc86ea7e2c7565b"
                },
                {
                  "fixed": "865a93b831bfcc63d49d6f2d14ccfafe216e4a99"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:gitlab:gitlab:*:*:*:*:community:*:*:*",
                    "range": [
                      {
                        "introduced": "12.8.0"
                      },
                      {
                        "fixed": "13.10.5"
                      }
                    ],
                    "source": "CPE_RANGE"
                  },
                  {
                    "cpe": "cpe:2.3:a:gitlab:gitlab:*:*:*:*:enterprise:*:*:*",
                    "range": [
                      {
                        "introduced": "12.8.0"
                      },
                      {
                        "fixed": "13.10.5"
                      }
                    ],
                    "source": "CPE_RANGE"
                  },
                  {
                    "cpe": "cpe:2.3:a:gitlab:gitlab:*:*:*:*:community:*:*:*",
                    "range": [
                      {
                        "introduced": "13.11.0"
                      },
                      {
                        "fixed": "13.11.5"
                      }
                    ],
                    "source": "CPE_RANGE"
                  },
                  {
                    "cpe": "cpe:2.3:a:gitlab:gitlab:*:*:*:*:enterprise:*:*:*",
                    "range": [
                      {
                        "introduced": "13.11.0"
                      },
                      {
                        "fixed": "13.11.5"
                      }
                    ],
                    "source": "CPE_RANGE"
                  },
                  {
                    "cpe": "cpe:2.3:a:gitlab:gitlab:*:*:*:*:community:*:*:*",
                    "range": [
                      {
                        "introduced": "13.12.0"
                      },
                      {
                        "fixed": "13.12.2"
                      }
                    ],
                    "source": "CPE_RANGE"
                  },
                  {
                    "cpe": "cpe:2.3:a:gitlab:gitlab:*:*:*:*:enterprise:*:*:*",
                    "range": [
                      {
                        "introduced": "13.12.0"
                      },
                      {
                        "fixed": "13.12.2"
                      }
                    ],
                    "source": "CPE_RANGE"
                  }
                ]
              }
            }
          ],
          "versions": [
            "v13.11.4-ee",
            "v13.12.1-ee",
            "v13.11.3-ee",
            "v13.12.0-ee",
            "v13.11.1-ee",
            "v13.11.0-ee"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2021-22218.json"
          }
        }
      ],
      "modified": "2026-10-30T10:30:29.594791747Z",
      "provider": "osv",
      "references": [
        "https://gitlab.com/gitlab-org/cves/-/blob/master/2021/CVE-2021-22218.json",
        "https://gitlab.com/gitlab-org/gitlab/-/issues/297665",
        "https://hackerone.com/reports/1077019"
      ],
      "provider_metadata": {}
    },
    "related_cves": [
      {
        "value": "CVE-2021-22218",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 434052,
  "published_at": "2021-06-08T16:15:13.53+00:00"
}