---
id: CVE-2022-29210
aliases:
  - GHSA-hc2f-7r5r-r2hg
  - BIT-tensorflow-2022-29210
  - PYSEC-2026-1007
title: Heap buffer overflow due to incorrect hash function in TensorFlow
summary: Heap buffer overflow due to incorrect hash function in TensorFlow
severity: medium
cvss: 5.5
cvssVector: 'CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H'
vendor: tensorflow
product: tensorflow
ecosystem: pip
affected:
  - 'tensorflow >= 2.8.0, < 2.8.1'
  - 'tensorflow-cpu >= 2.8.0, < 2.8.1'
  - 'tensorflow-gpu >= 2.8.0, < 2.8.1'
patched:
  - tensorflow 2.8.1
  - tensorflow-cpu 2.8.1
  - tensorflow-gpu 2.8.1
published: '2022-05-24'
updated: '2026-07-07'
source: OSV
sourceUrl: 'https://osv.dev/vulnerability/GHSA-hc2f-7r5r-r2hg'
references:
  - url: >-
      https://github.com/tensorflow/tensorflow/security/advisories/GHSA-hc2f-7r5r-r2hg
  - url: 'https://nvd.nist.gov/vuln/detail/CVE-2022-29210'
  - url: >-
      https://github.com/tensorflow/tensorflow/commit/1b85a28d395dc91f4d22b5f9e1e9a22e92ccecd6
  - url: 'https://github.com/tensorflow/tensorflow'
  - url: >-
      https://github.com/tensorflow/tensorflow/blob/f3b9bf4c3c0597563b289c0512e98d4ce81f886e/tensorflow/core/framework/tensor_key.h#L53-L64
  - url: 'https://github.com/tensorflow/tensorflow/releases/tag/v2.8.1'
  - url: 'https://github.com/tensorflow/tensorflow/releases/tag/v2.9.0'
tags:
  - osv
  - pip
epss: 0.00227
epssPercentile: 0.13632
ingestedAt: '2026-07-08T18:25:50.038Z'
---

## Overview

### Impact
The [`TensorKey` hash function](https://github.com/tensorflow/tensorflow/blob/f3b9bf4c3c0597563b289c0512e98d4ce81f886e/tensorflow/core/framework/tensor_key.h#L53-L64) used total estimated `AllocatedBytes()`, which (a) is an estimate per tensor, and (b) is a very poor hash function for constants (e.g. `int32_t`).  It also tried to access individual tensor bytes through `tensor.data()` of size `AllocatedBytes()`.  This led to ASAN failures because the `AllocatedBytes()` is an estimate of total bytes allocated by a tensor, including any pointed-to constructs (e.g. strings), and does not refer to contiguous bytes in the `.data()` buffer.  We couldn't use this byte vector anyways, since types like `tstring` include pointers, whereas we need to hash the string values themselves.

### Patches
We have patched the issue in GitHub commit [1b85a28d395dc91f4d22b5f9e1e9a22e92ccecd6](https://github.com/tensorflow/tensorflow/commit/1b85a28d395dc91f4d22b5f9e1e9a22e92ccecd6).

The fix will be included in TensorFlow 2.9.0. We will also cherrypick this commit on TensorFlow 2.8.1, which is the only other affected version.

### 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.

## Affected packages

- `tensorflow >= 2.8.0, < 2.8.1`
- `tensorflow-cpu >= 2.8.0, < 2.8.1`
- `tensorflow-gpu >= 2.8.0, < 2.8.1`

## Remediation

Upgrade to a patched release:

- `tensorflow 2.8.1`
- `tensorflow-cpu 2.8.1`
- `tensorflow-gpu 2.8.1`