CVE-2021-37673

TensorFlow is an end-to-end open source platform for machine learning. In affected versions an attacker can trigger a denial of service via a `CHECK`-fail in `tf.raw_ops.MapStage`. The [implementation](https://github.com/tensorflow/tensorflow/blob/460e000de3a83278fb00b61a16d161b1964f15f4/tensorflow/core/kernels/map_stage_op.cc#L513) does not check that the `key` input is a valid non-empty tensor. We have patched the issue in GitHub commit d7de67733925de196ec8863a33445b73f9562d1d. 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-20

• https://github.com/tensorflow/tensorflow/commit/d7de67733925de196ec8863a33445b73f9562d1dPatch, Third Party Advisory
• https://github.com/tensorflow/tensorflow/security/advisories/GHSA-278g-rq84-9hmgThird Party Advisory
• https://github.com/tensorflow/tensorflow/commit/d7de67733925de196ec8863a33445b73f9562d1dPatch, Third Party Advisory
• https://github.com/tensorflow/tensorflow/security/advisories/GHSA-278g-rq84-9hmgThird 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.
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