Security advisory

{
  "id": "eff222c8e1907f30ea56ee8d67b4087019da27b82425f87479a4855d685e0d87",
  "url": "https://osv.dev/vulnerability/CVE-2021-23772",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "CVE-2021-23772",
    "summary": "This affects all versions of package github.com/kataras/iris; all versions of package github.com/kataras/iris/v12. The unsafe handling of file names during upload using UploadFormFiles method may enable attackers to write to arbitrary locations outside the designated target folder.",
    "evidence": "osv:CVE-2021-23772",
    "products": [],
    "severity": "high",
    "structured": {
      "id": "CVE-2021-23772",
      "aliases": [
        "CVE-2021-23772",
        "GHSA-jcxc-rh6w-wf49",
        "GO-2022-0272"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/kataras/iris",
              "type": "GIT",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "last_affected": "08403f0317e7d54607782a65a5344c589087cf55"
                },
                {
                  "fixed": "e213dba0d32ff66653e0ef124bc5088817264b08"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:iris-go:iris:*:*:*:*:*:go:*:*",
                    "range": [
                      {
                        "introduced": "0"
                      },
                      {
                        "last_affected": "12.1.8"
                      }
                    ],
                    "source": "CPE_RANGE"
                  },
                  {
                    "range": [
                      {
                        "fixed": "e213dba0d32ff66653e0ef124bc5088817264b08"
                      }
                    ],
                    "source": "REFERENCES_COMMIT"
                  }
                ]
              }
            }
          ],
          "versions": [
            "v12.1.8",
            "v12.1.7",
            "v12.1.6",
            "v12.1.5",
            "v12.1.4",
            "v12.1.3",
            "v12.1.2",
            "v12.1.1",
            "v12.0.1",
            "v12.0.0"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2021-23772.json"
          }
        }
      ],
      "modified": "2026-10-20T10:54:33.020090829Z",
      "provider": "osv",
      "references": [
        "https://github.com/kataras/iris/commit/e213dba0d32ff66653e0ef124bc5088817264b08",
        "https://snyk.io/vuln/SNYK-GOLANG-GITHUBCOMKATARASIRIS-2325169",
        "https://snyk.io/vuln/SNYK-GOLANG-GITHUBCOMKATARASIRISV12-2325170"
      ],
      "provider_metadata": {
        "unresolved_ranges": [
          {
            "cpes": [
              "cpe:2.3:a:iris-go:iris:12.2.0:alpha2:*:*:*:go:*:*",
              "cpe:2.3:a:iris-go:iris:12.2.0:alpha3:*:*:*:go:*:*",
              "cpe:2.3:a:iris-go:iris:12.2.0:alpha4:*:*:*:go:*:*",
              "cpe:2.3:a:iris-go:iris:12.2.0:alpha5:*:*:*:go:*:*",
              "cpe:2.3:a:iris-go:iris:12.2.0:alpha:*:*:*:go:*:*"
            ],
            "vendor_product": "iris-go:iris",
            "extracted_events": [
              {
                "range": [
                  {
                    "introduced": "12.2.0-alpha"
                  },
                  {
                    "last_affected": "12.2.0-alpha"
                  },
                  {
                    "introduced": "12.2.0-alpha2"
                  },
                  {
                    "last_affected": "12.2.0-alpha2"
                  },
                  {
                    "introduced": "12.2.0-alpha3"
                  },
                  {
                    "last_affected": "12.2.0-alpha3"
                  },
                  {
                    "introduced": "12.2.0-alpha4"
                  },
                  {
                    "last_affected": "12.2.0-alpha4"
                  },
                  {
                    "introduced": "12.2.0-alpha5"
                  },
                  {
                    "last_affected": "12.2.0-alpha5"
                  }
                ],
                "source": "CPE_STRING"
              }
            ]
          }
        ]
      }
    },
    "related_cves": [
      {
        "value": "CVE-2021-23772",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 385554,
  "published_at": "2021-12-24T12:15:07.697+00:00"
}