---
id: CVE-2023-33976
aliases:
  - GHSA-gjh7-xx4r-x345
  - BIT-tensorflow-2023-33976
  - PYSEC-2026-1962
title: TensorFlow has segfault in array_ops.upper_bound
summary: TensorFlow has segfault in array_ops.upper_bound
severity: high
cvss: 7.5
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H'
vendor: tensorflow
product: tensorflow
ecosystem: pip
affected:
  - tensorflow < 2.12.1
  - tensorflow-cpu < 2.12.1
  - tensorflow-gpu < 2.12.1
patched:
  - tensorflow 2.12.1
  - tensorflow-cpu 2.12.1
  - tensorflow-gpu 2.12.1
published: '2024-07-30'
updated: '2026-07-07'
source: OSV
sourceUrl: 'https://osv.dev/vulnerability/GHSA-gjh7-xx4r-x345'
references:
  - url: >-
      https://github.com/tensorflow/tensorflow/security/advisories/GHSA-gjh7-xx4r-x345
  - url: 'https://nvd.nist.gov/vuln/detail/CVE-2023-33976'
  - url: >-
      https://github.com/tensorflow/tensorflow/commit/6fa05df43b00038b048f4f0e51ef522da6532fec
  - url: >-
      https://github.com/tensorflow/tensorflow/commit/915884fdf5df34aaedd00fc6ace33a2cfdefa586
  - url: 'https://github.com/tensorflow/tensorflow'
tags:
  - osv
  - pip
epss: 0.00432
epssPercentile: 0.37061
ingestedAt: '2026-07-08T18:25:49.733Z'
---

## Overview

### Impact
`array_ops.upper_bound` causes a segfault when not given a rank 2 tensor.

### Patches
We have patched the issue in GitHub commit [915884fdf5df34aaedd00fc6ace33a2cfdefa586](https://github.com/tensorflow/tensorflow/commit/915884fdf5df34aaedd00fc6ace33a2cfdefa586).

The fix will be included in TensorFlow 2.13. We will also cherrypick this commit in TensorFlow 2.12.1.


### 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 by dmc1778

## Affected packages

- `tensorflow < 2.12.1`
- `tensorflow-cpu < 2.12.1`
- `tensorflow-gpu < 2.12.1`

## Remediation

Upgrade to a patched release:

- `tensorflow 2.12.1`
- `tensorflow-cpu 2.12.1`
- `tensorflow-gpu 2.12.1`