PYSEC-2022-56: tensorflow-cpu fixed in e3749a6d5d1e8d11806d4a2e9cc3123d1a90b75e, 2.6.3 and 2.5.3

PYSEC-2022-56 PUBLISHED CVSS 9.300000190734863 CRITICAL

Record from OSV · Published February 3, 2022

tensorflow-cpu is fixed in e3749a6d5d1e8d11806d4a2e9cc3123d1a90b75e, 2.6.3 and 2.5.3 (PyPI)

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.

Fixed versions

Upgrade to a fixed version or later. Language registries are listed first, then Linux distributions, then vendor products.

Package	Ecosystem	Fixed in
tensorflow-cpu	PyPI	e3749a6d5d1e8d11806d4a2e9cc3123d1a90b75e, 2.6.3, 2.5.3

Risk scores

CVSS 4.0

9.300000190734863

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

Affected products

Vendor	Product	Versions
PyPI	tensorflow-cpu	0, 1.15.0, 2.1.1

Timeline

Feb 3, 2022 CVE Published
Jul 13, 2026 CVE Updated

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