CVE-2021-37638

TensorFlow is an end-to-end open source platform for machine learning. Sending invalid argument for `row_partition_types` of `tf.raw_ops.RaggedTensorToTensor` API results in a null pointer dereference and undefined behavior. The [implementation](https://github.com/tensorflow/tensorflow/blob/47a06f40411a69c99f381495f490536972152ac0/tensorflow/core/kernels/ragged_tensor_to_tensor_op.cc#L328) accesses the first element of a user supplied list of values without validating that the provided list is not empty. We have patched the issue in GitHub commit 301ae88b331d37a2a16159b65b255f4f9eb39314. The fix will be included in TensorFlow 2.6.0. We will also cherrypick this commit on TensorFlow 2.5.1, TensorFlow 2.4.3, and TensorFlow 2.3.4, as these are also affected and still in supported range.

• CWE-476

• https://github.com/tensorflow/tensorflow/commit/301ae88b331d37a2a16159b65b255f4f9eb39314Patch, Third Party Advisory
• https://github.com/tensorflow/tensorflow/security/advisories/GHSA-hwr7-8gxx-fj5pThird Party Advisory
• https://github.com/tensorflow/tensorflow/commit/301ae88b331d37a2a16159b65b255f4f9eb39314Patch, Third Party Advisory
• https://github.com/tensorflow/tensorflow/security/advisories/GHSA-hwr7-8gxx-fj5pThird Party Advisory

Published

Aug 12, 2021

Last Modified

Jun 17, 2026

Status

Modified

• How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
• Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
• PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
• AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.

• CVE-2021-37632SuperMartijn642's Config Lib is a library used by a number o…8.1
• CVE-2021-37633Discourse is an open source discussion platform. In versions…6.1
• CVE-2021-37634Leafkit is a templating language with Swift-inspired syntax.…6.1
• CVE-2021-37635TensorFlow is an end-to-end open source platform for machine…7.1
• CVE-2021-37636TensorFlow is an end-to-end open source platform for machine…5.5
• CVE-2021-37637TensorFlow is an end-to-end open source platform for machine…5.5
• CVE-2021-37639TensorFlow is an end-to-end open source platform for machine…7.8
• CVE-2021-3764A memory leak flaw was found in the Linux kernel's ccp_run_a…5.5
• CVE-2021-37640TensorFlow is an end-to-end open source platform for machine…5.5
• CVE-2021-37641TensorFlow is an end-to-end open source platform for machine…7.1
• CVE-2021-37642TensorFlow is an end-to-end open source platform for machine…5.5
• CVE-2021-37643TensorFlow is an end-to-end open source platform for machine…7.1