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MEDIUM5.5

PYSEC-2026-952

Incomplete validation in signal ops leads to crashes in TensorFlow

Quick fix

PYSEC-2026-952 — tensorflow-gpu: upgrade to the fixed version with the command below.

pip install --upgrade 'tensorflow-gpu>=2.6.4'

Details

### Impact The `tf.compat.v1.signal.rfft2d` and `tf.compat.v1.signal.rfft3d` lack input validation and under certain condition can result in crashes (due to `CHECK`-failures).

### Patches We have patched the issue in GitHub commit [0a8a781e597b18ead006d19b7d23d0a369e9ad73](https://github.com/tensorflow/tensorflow/commit/0a8a781e597b18ead006d19b7d23d0a369e9ad73) (merging GitHub PR [#55274](https://github.com/tensorflow/tensorflow/pull/55274)).

The fix will be included in TensorFlow 2.9.0. We will also cherrypick this commit on TensorFlow 2.8.1, TensorFlow 2.7.2, and TensorFlow 2.6.4, as these are also affected and still in supported range.

### For more information Please consult [our security guide](https://github.com/tensorflow/tensorflow/blob/master/SECURITY.md) for more information regarding the security model and how to contact us with issues and questions.

### Attribution This vulnerability has been reported externally via a [GitHub issue](https://github.com/tensorflow/tensorflow/issues/55263).

Are you affected?

Enter the version of the package you're using.

Affected packages

PyPI/tensorflow-gpu
Introduced in: 0Fixed in: 2.6.4
Fixpip install --upgrade 'tensorflow-gpu>=2.6.4'

References