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Security advisory

Type: advisorySources: OSVCVE: CVE-2021-41225

TensorFlow is an open source platform for machine learning. In affected versions TensorFlow's Grappler optimizer has a use of unitialized variable. If the `train_nodes` vector (obtained from the saved model that gets optimized) does not contain a `Dequeue` node, then `dequeue_node` is left unitialized. 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-2021-41225
Confirmed fixed CVEs
Not specified
Updated in this feed
31 Oct 2026, 12:52 UTC · Revision 1

Source evidence

CVE-2021-41225

core-osv · Original source

Published 5 Nov 2021, 23:15 UTC

TensorFlow is an open source platform for machine learning. In affected versions TensorFlow's Grappler optimizer has a use of unitialized variable. If the `train_nodes` vector (obtained from the saved model that gets optimized) does not contain a `Dequeue` node, then `dequeue_node` is left unitialized. 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-2021-41225
Complete source record
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  "url": "https://osv.dev/vulnerability/CVE-2021-41225",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "CVE-2021-41225",
    "summary": "TensorFlow is an open source platform for machine learning. In affected versions TensorFlow's Grappler optimizer has a use of unitialized variable. If the `train_nodes` vector (obtained from the saved model that gets optimized) does not contain a `Dequeue` node, then `dequeue_node` is left unitialized. 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-2021-41225",
    "products": [],
    "severity": "high",
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      "aliases": [
        "BIT-tensorflow-2021-41225",
        "CVE-2021-41225",
        "GHSA-7r94-xv9v-63jw",
        "PYSEC-2021-417",
        "PYSEC-2021-634",
        "PYSEC-2021-832"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H"
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                {
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                    "range": [
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                      {
                        "last_affected": "2.7.0-rc1"
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                  },
                  {
                    "range": [
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                        "fixed": "68867bf01239d9e1048f98cbad185bf4761bedd3"
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                    ],
                    "source": "REFERENCES_COMMIT"
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                "target": {
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                  "function": "AutoParallel::Initialize"
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            "vanir_signatures_modified": "2026-10-20T14:28:23Z"
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      "modified": "2026-10-20T14:28:23.921311807Z",
      "provider": "osv",
      "references": [
        "https://github.com/tensorflow/tensorflow/commit/68867bf01239d9e1048f98cbad185bf4761bedd3",
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      "provider_metadata": {}
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    "severity_evidence": "/severity/0/score"
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  "source_id": "core-osv",
  "document_id": 389055,
  "published_at": "2021-11-05T23:15:08.543+00:00"
}