Security advisory
TensorFlow is an open source platform for machine learning. In affected versions while calculating the size of the output within the `tf.range` kernel, there is a conditional statement of type `int64 = condition ? int64 : double`. Due to C++ implicit conversion rules, both branches of the condition will be cast to `double` and the result would be truncated before the assignment. This result in overflows. 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-2021-41202
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 31 Oct 2026, 11:56 UTC · Revision 1
Source evidence
TensorFlow is an open source platform for machine learning. In affected versions while calculating the size of the output within the `tf.range` kernel, there is a conditional statement of type `int64 = condition ? int64 : double`. Due to C++ implicit conversion rules, both branches of the condition will be cast to `double` and the result would be truncated before the assignment. This result in overflows. 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-2021-41202
Complete source record
{
"id": "fe302c760114353dbd1961f9c2983ec0365d32a8daeec81f5a9a8ddac2251aeb",
"url": "https://osv.dev/vulnerability/CVE-2021-41202",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "CVE-2021-41202",
"summary": "TensorFlow is an open source platform for machine learning. In affected versions while calculating the size of the output within the `tf.range` kernel, there is a conditional statement of type `int64 = condition ? int64 : double`. Due to C++ implicit conversion rules, both branches of the condition will be cast to `double` and the result would be truncated before the assignment. This result in overflows. 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-2021-41202",
"products": [],
"severity": "medium",
"structured": {
"id": "CVE-2021-41202",
"aliases": [
"BIT-tensorflow-2021-41202",
"CVE-2021-41202",
"GHSA-xrqm-fpgr-6hhx",
"PYSEC-2021-395",
"PYSEC-2021-612",
"PYSEC-2021-810"
],
"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": "1b0e0ec27e7895b9985076eab32445026ae5ca94"
},
{
"fixed": "6d94002a09711d297dbba90390d5482b76113899"
}
],
"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": "1b0e0ec27e7895b9985076eab32445026ae5ca94"
}
],
"source": "REFERENCES_COMMIT"
},
{
"range": [
{
"fixed": "6d94002a09711d297dbba90390d5482b76113899"
}
],
"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-2021-41202.json"
}
}
],
"modified": "2026-10-20T10:54:57.783862713Z",
"provider": "osv",
"references": [
"https://github.com/tensorflow/tensorflow/security/advisories/GHSA-xrqm-fpgr-6hhx",
"https://github.com/tensorflow/tensorflow/issues/46889",
"https://github.com/tensorflow/tensorflow/issues/46912",
"https://github.com/tensorflow/tensorflow/commit/1b0e0ec27e7895b9985076eab32445026ae5ca94",
"https://github.com/tensorflow/tensorflow/commit/6d94002a09711d297dbba90390d5482b76113899"
],
"provider_metadata": {}
},
"related_cves": [
{
"value": "CVE-2021-41202",
"evidence": "/id"
}
],
"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 386563,
"published_at": "2021-11-05T22:15:08.323+00:00"
}