CVE-2022-21732: Google Tensorflow

Medium severity, CVSS 6.5. EPSS: 0.8% chance of exploitation in the next 30 days.

Tensorflow is an Open Source Machine Learning Framework. The implementation of `ThreadPoolHandle` can be used to trigger a denial of service attack by allocating too much memory. This is because the `num_threads` argument is only checked to not be negative, but there is no upper bound on its value. The fix will be included in TensorFlow 2.8.0. We will also cherrypick this commit on TensorFlow 2.7.1, TensorFlow 2.6.3, and TensorFlow 2.5.3, as these are also affected and still in supported range.

Affected products

• Google Tensorflow: up to and including 2.5.2; from 2.6.0, up to and including 2.6.2; version 2.7.0 only

Published 2022-02-03. Last modified 2026-06-17.