Security advisory

{
  "id": "fccf205c86a85a5a6861b4ae218de79683b1277d5610f092157e97bc80cbb98c",
  "url": "https://osv.dev/vulnerability/CVE-2020-14040",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "CVE-2020-14040",
    "summary": "The x/text package before 0.3.3 for Go has a vulnerability in encoding/unicode that could lead to the UTF-16 decoder entering an infinite loop, causing the program to crash or run out of memory. An attacker could provide a single byte to a UTF16 decoder instantiated with UseBOM or ExpectBOM to trigger an infinite loop if the String function on the Decoder is called, or the Decoder is passed to golang.org/x/text/transform.String.",
    "evidence": "osv:CVE-2020-14040",
    "products": [],
    "severity": "high",
    "structured": {
      "id": "CVE-2020-14040",
      "aliases": [
        "CVE-2020-14040",
        "GHSA-5rcv-m4m3-hfh7",
        "GO-2020-0015"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/golang/text",
              "type": "GIT",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "23ae387dee1f90d29a23c0e87ee0b46038fbed0e"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:golang:text:*:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "0"
                      },
                      {
                        "fixed": "0.3.3"
                      }
                    ],
                    "source": "CPE_RANGE"
                  }
                ]
              }
            }
          ],
          "versions": [
            "v0.3.2",
            "v0.3.1",
            "v0.3.0",
            "v0.2.0",
            "v0.1.0"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2020-14040.json"
          }
        }
      ],
      "modified": "2026-10-24T10:30:18.674680681Z",
      "provider": "osv",
      "references": [
        "https://groups.google.com/forum/#%21topic/golang-announce/bXVeAmGOqz0",
        "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/TACQFZDPA7AUR6TRZBCX2RGRFSDYLI7O/"
      ],
      "provider_metadata": {
        "unresolved_ranges": [
          {
            "cpes": [
              "cpe:2.3:o:fedoraproject:fedora:32:*:*:*:*:*:*:*"
            ],
            "vendor_product": "fedoraproject:fedora",
            "extracted_events": [
              {
                "range": [
                  {
                    "introduced": "32"
                  },
                  {
                    "last_affected": "32"
                  }
                ],
                "source": "CPE_STRING"
              }
            ]
          }
        ]
      }
    },
    "related_cves": [
      {
        "value": "CVE-2020-14040",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 429826,
  "published_at": "2020-06-17T20:15:09.993+00:00"
}