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Security advisory

Type: advisorySources: OSVCVE: CVE-2021-41212

TensorFlow is an open source platform for machine learning. In affected versions the shape inference code for `tf.ragged.cross` can trigger a read outside of bounds of heap allocated array. 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.

Products
Not specified
Affected versions
Not specified
Fixed versions
Not specified
CVEs
CVE-2021-41212
Confirmed fixed CVEs
Not specified
Updated in this feed
31 Oct 2026, 12:38 UTC · Revision 1

Source evidence

CVE-2021-41212

core-osv · Original source

Published 5 Nov 2021, 21:15 UTC

TensorFlow is an open source platform for machine learning. In affected versions the shape inference code for `tf.ragged.cross` can trigger a read outside of bounds of heap allocated array. 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.

osv:CVE-2021-41212
Complete source record
{
  "id": "43d25863b2170543b80f245acd484f8ea6cc389215d5d0082754c17b9e500d5c",
  "url": "https://osv.dev/vulnerability/CVE-2021-41212",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "CVE-2021-41212",
    "summary": "TensorFlow is an open source platform for machine learning. In affected versions the shape inference code for `tf.ragged.cross` can trigger a read outside of bounds of heap allocated array. 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-2021-41212",
    "products": [],
    "severity": "high",
    "structured": {
      "id": "CVE-2021-41212",
      "aliases": [
        "BIT-tensorflow-2021-41212",
        "CVE-2021-41212",
        "GHSA-fr77-rrx3-cp7g",
        "PYSEC-2021-404",
        "PYSEC-2021-621",
        "PYSEC-2021-819"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/tensorflow/tensorflow",
              "type": "GIT",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "64918868e2154b06c7479347a59a4230f785e9fa"
                },
                {
                  "introduced": "a4dfb8d1a71385bd6d122e4f27f86dcebb96712d"
                },
                {
                  "fixed": "957590ea15cc03ee2e00fc61934647d54836676f"
                },
                {
                  "introduced": "919f693420e35d00c8d0a42100837ae3718f7927"
                },
                {
                  "last_affected": "919f693420e35d00c8d0a42100837ae3718f7927"
                },
                {
                  "fixed": "fa6b7782fbb14aa08d767bc799c531f5e1fb3bb8"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:google:tensorflow:*:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "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:2.6.0:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "2.6.0"
                      },
                      {
                        "last_affected": "2.6.0"
                      }
                    ],
                    "source": "CPE_STRING"
                  },
                  {
                    "range": [
                      {
                        "fixed": "fa6b7782fbb14aa08d767bc799c531f5e1fb3bb8"
                      }
                    ],
                    "source": "REFERENCES_COMMIT"
                  }
                ]
              }
            }
          ],
          "versions": [
            "2.6.0",
            "v2.4.3",
            "v2.6.0",
            "v2.5.1",
            "v2.4.2",
            "v2.5.0",
            "v2.4.1",
            "v2.4.0",
            "v2.4.0-rc4",
            "v2.4.0-rc3",
            "v2.4.0-rc2",
            "v2.4.0-rc1",
            "v2.4.0-rc0",
            "v1.12.1",
            "v1.9.0-rc2",
            "v1.6.0-rc1",
            "v1.1.0-rc2",
            "v1.1.0-rc1",
            "0.6.0",
            "0.5.0"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2021-41212.json",
            "vanir_signatures": [
              {
                "id": "CVE-2021-41212-d382f33c",
                "digest": {
                  "threshold": 0.9,
                  "line_hashes": [
                    "125548308007819927586023436435408997709",
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                    "69918281684686405500487333033139779702",
                    "97990569982538074792787059467048776503"
                  ]
                },
                "source": "https://github.com/tensorflow/tensorflow/commit/fa6b7782fbb14aa08d767bc799c531f5e1fb3bb8",
                "target": {
                  "file": "tensorflow/core/ops/ragged_array_ops.cc"
                },
                "deprecated": false,
                "signature_type": "Line",
                "signature_version": "v1"
              }
            ],
            "vanir_signatures_modified": "2026-10-20T14:10:31Z"
          }
        }
      ],
      "modified": "2026-10-20T14:10:31.106637787Z",
      "provider": "osv",
      "references": [
        "https://github.com/tensorflow/tensorflow/commit/fa6b7782fbb14aa08d767bc799c531f5e1fb3bb8",
        "https://github.com/tensorflow/tensorflow/security/advisories/GHSA-fr77-rrx3-cp7g"
      ],
      "provider_metadata": {}
    },
    "related_cves": [
      {
        "value": "CVE-2021-41212",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 388619,
  "published_at": "2021-11-05T21:15:08.877+00:00"
}