High severity7.8NVD Advisory· Published Nov 5, 2021· Updated Jun 17, 2026
CVE-2021-41221
CVE-2021-41221
Description
TensorFlow is an open source platform for machine learning. In affected versions the shape inference code for the Cudnn* operations in TensorFlow can be tricked into accessing invalid memory, via a heap buffer overflow. This occurs because the ranks of the input, input_h and input_c parameters are not validated, but code assumes they have certain values. 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.
AI Insight
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Affected packages
Versions sourced from the GitHub Security Advisory.
| Package | Affected versions | Patched versions |
|---|---|---|
tensorflowPyPI | >= 2.6.0, < 2.6.1 | 2.6.1 |
tensorflowPyPI | >= 2.5.0, < 2.5.2 | 2.5.2 |
tensorflowPyPI | < 2.4.4 | 2.4.4 |
tensorflow-cpuPyPI | >= 2.6.0, < 2.6.1 | 2.6.1 |
tensorflow-cpuPyPI | >= 2.5.0, < 2.5.2 | 2.5.2 |
tensorflow-cpuPyPI | < 2.4.4 | 2.4.4 |
tensorflow-gpuPyPI | >= 2.6.0, < 2.6.1 | 2.6.1 |
tensorflow-gpuPyPI | >= 2.5.0, < 2.5.2 | 2.5.2 |
tensorflow-gpuPyPI | < 2.4.4 | 2.4.4 |
Affected products
8- osv-coords4 versions
>= 2.4.0, < 2.4.4+ 3 more
- (no CPE)range: >= 2.4.0, < 2.4.4
- (no CPE)range: >= 2.6.0, < 2.6.1
- (no CPE)range: >= 2.6.0, < 2.6.1
- (no CPE)range: >= 2.6.0, < 2.6.1
- Range: >= 2.6.0, < 2.6.1
cpe:2.3:a:google:tensorflow:*:*:*:*:*:*:*:*+ 2 more
- cpe:2.3:a:google:tensorflow:*:*:*:*:*:*:*:*range: >=2.4.0,<2.4.4
- cpe:2.3:a:google:tensorflow:2.7.0:rc0:*:*:*:*:*:*
- cpe:2.3:a:google:tensorflow:2.7.0:rc1:*:*:*:*:*:*
Patches
Vulnerability mechanics
References
7- github.com/tensorflow/tensorflow/commit/af5fcebb37c8b5d71c237f4e59c6477015c78ce6nvdPatchThird Party AdvisoryWEB
- github.com/tensorflow/tensorflow/security/advisories/GHSA-cqv6-3phm-hcwxnvdExploitPatchThird Party AdvisoryWEB
- github.com/advisories/GHSA-cqv6-3phm-hcwxghsaADVISORY
- nvd.nist.gov/vuln/detail/CVE-2021-41221ghsaADVISORY
- github.com/pypa/advisory-database/tree/main/vulns/tensorflow-cpu/PYSEC-2021-630.yamlghsaWEB
- github.com/pypa/advisory-database/tree/main/vulns/tensorflow-gpu/PYSEC-2021-828.yamlghsaWEB
- github.com/pypa/advisory-database/tree/main/vulns/tensorflow/PYSEC-2021-413.yamlghsaWEB
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