CVE-2023-33976: PYSEC-2026-3331 - TensorFlow has segfault in array_ops.upper_bound

Quick answers

Is CVE-2023-33976 exploited in the wild?

No. Junglewise Threat Intelligence has no report of CVE-2023-33976 being exploited in the wild.

How severe is CVE-2023-33976?

Low severity, with a CVSS score of 3.1, published 13 July 2026.

Which products and versions are affected?

tensorflow (PyPI) ECOSYSTEM:introduced=0,fixed=2.12.1; tensorflow-cpu (PyPI) ECOSYSTEM:introduced=0,fixed=2.12.1; tensorflow-gpu (PyPI) ECOSYSTEM:introduced=0,fixed=2.12.1.

Is there a fix for CVE-2023-33976?

Yes. tensorflow (PyPI): upgrade to 2.12.1 or later; tensorflow-cpu (PyPI): upgrade to 2.12.1 or later; tensorflow-gpu (PyPI): upgrade to 2.12.1 or later. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.

Am I affected by CVE-2023-33976?

Check whether you run tensorflow (PyPI), tensorflow-cpu (PyPI) or tensorflow-gpu (PyPI) at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

How to fix

• tensorflow (PyPI): upgrade to 2.12.1 or later

  pip install "tensorflow>=2.12.1"

• tensorflow-cpu (PyPI): upgrade to 2.12.1 or later

  pip install "tensorflow-cpu>=2.12.1"

• tensorflow-gpu (PyPI): upgrade to 2.12.1 or later

  pip install "tensorflow-gpu>=2.12.1"

Affected products

• tensorflow (PyPI) ECOSYSTEM:introduced=0,fixed=2.12.1
• tensorflow-cpu (PyPI) ECOSYSTEM:introduced=0,fixed=2.12.1
• tensorflow-gpu (PyPI) ECOSYSTEM:introduced=0,fixed=2.12.1

Identifiers

• CVE-2023-33976
• GHSA-gjh7-xx4r-x345
• PYSEC-2026-1962
• PYSEC-2026-3190
• PYSEC-2026-3331