Security advisory

{
  "id": "92d372ac26e266c045aa287d7f4c9a6fbb5aa89d18c1e5e47150e179e7ba706e",
  "url": "https://osv.dev/vulnerability/CVE-2021-41207",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "CVE-2021-41207",
    "summary": "TensorFlow is an open source platform for machine learning. In affected versions the implementation of `ParallelConcat` misses some input validation and can produce a division by 0. The fix will be included in TensorFlow 2.7.0. We will also cherrypick this commit on TensorFlow 2.6.1, TensorFlow 2.5.2, and TensorFlow 2.4.4, as these are also affected and still in supported range.",
    "evidence": "osv:CVE-2021-41207",
    "products": [],
    "severity": "medium",
    "structured": {
      "id": "CVE-2021-41207",
      "aliases": [
        "BIT-tensorflow-2021-41207",
        "CVE-2021-41207",
        "GHSA-7v94-64hj-m82h",
        "PYSEC-2021-399",
        "PYSEC-2021-616",
        "PYSEC-2021-814"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/tensorflow/tensorflow",
              "type": "GIT",
              "events": [
                {
                  "introduced": "582c8d236cb079023657287c318ff26adb239002"
                },
                {
                  "fixed": "64918868e2154b06c7479347a59a4230f785e9fa"
                },
                {
                  "introduced": "a4dfb8d1a71385bd6d122e4f27f86dcebb96712d"
                },
                {
                  "fixed": "957590ea15cc03ee2e00fc61934647d54836676f"
                },
                {
                  "introduced": "919f693420e35d00c8d0a42100837ae3718f7927"
                },
                {
                  "fixed": "3aa40c3ce9d16eae296f086bc4ac4d62deb2affc"
                },
                {
                  "introduced": "ce35e5c3a8efdb8161c6a85c8fb9ffb5bbdc9ffd"
                },
                {
                  "last_affected": "ff68385595088304cf772086b9a259a65b007622"
                },
                {
                  "fixed": "f2c3931113eaafe9ef558faaddd48e00a6606235"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:google:tensorflow:*:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "2.4.0"
                      },
                      {
                        "fixed": "2.4.4"
                      }
                    ],
                    "source": "CPE_RANGE"
                  },
                  {
                    "cpe": "cpe:2.3:a:google:tensorflow:*:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "2.5.0"
                      },
                      {
                        "fixed": "2.5.2"
                      }
                    ],
                    "source": "CPE_RANGE"
                  },
                  {
                    "cpe": "cpe:2.3:a:google:tensorflow:*:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "2.6.0"
                      },
                      {
                        "fixed": "2.6.1"
                      }
                    ],
                    "source": "CPE_RANGE"
                  },
                  {
                    "cpe": "cpe:2.3:a:google:tensorflow:2.7.0:rc0:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "2.7.0-rc0"
                      },
                      {
                        "last_affected": "2.7.0-rc0"
                      }
                    ],
                    "source": "CPE_STRING"
                  },
                  {
                    "cpe": "cpe:2.3:a:google:tensorflow:2.7.0:rc1:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "2.7.0-rc1"
                      },
                      {
                        "last_affected": "2.7.0-rc1"
                      }
                    ],
                    "source": "CPE_STRING"
                  },
                  {
                    "range": [
                      {
                        "fixed": "f2c3931113eaafe9ef558faaddd48e00a6606235"
                      }
                    ],
                    "source": "REFERENCES_COMMIT"
                  }
                ]
              }
            }
          ],
          "versions": [
            "2.7.0-rc0",
            "2.7.0-rc1",
            "v2.7.0-rc1",
            "v2.4.3",
            "v2.6.0",
            "v2.5.1",
            "v2.7.0-rc0",
            "v2.4.2",
            "v2.5.0",
            "v2.4.1",
            "v2.4.0"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2021-41207.json",
            "vanir_signatures": [
              {
                "id": "CVE-2021-41207-db85b999",
                "digest": {
                  "threshold": 0.9,
                  "line_hashes": [
                    "129095244854036632173131377968883283926",
                    "59391607675454624616787070319331966422",
                    "254841050197655582270788966355686820730",
                    "31661765596769610621690290177303759814"
                  ]
                },
                "source": "https://github.com/tensorflow/tensorflow/commit/f2c3931113eaafe9ef558faaddd48e00a6606235",
                "target": {
                  "file": "tensorflow/core/kernels/inplace_ops.cc"
                },
                "deprecated": false,
                "signature_type": "Line",
                "signature_version": "v1"
              }
            ],
            "vanir_signatures_modified": "2026-10-20T14:11:01Z"
          }
        }
      ],
      "modified": "2026-10-20T14:11:01.914776786Z",
      "provider": "osv",
      "references": [
        "https://github.com/tensorflow/tensorflow/security/advisories/GHSA-7v94-64hj-m82h",
        "https://github.com/tensorflow/tensorflow/commit/f2c3931113eaafe9ef558faaddd48e00a6606235"
      ],
      "provider_metadata": {}
    },
    "related_cves": [
      {
        "value": "CVE-2021-41207",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 388699,
  "published_at": "2021-11-05T22:15:08.47+00:00"
}