---
id: CVE-2023-0645
title: An out of bounds read exists in libjxl
summary: "An out of bounds read exists in libjxl. An attacker using a specifically crafted file could cause an out of bounds read in the exif handler. We recommend upgrading to version 0.8.1 or past commit\_ https://github.com/libjxl/libjxl/pull/21…"
severity: medium
cvss: 5.3
cvssVector: 'CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N'
cwe:
  - CWE-125
  - CWE-125
vendor: libjxl_project
product: libjxl
affected:
  - libjxl < 0.8.1
patched:
  - libjxl 0.8.1
published: '2023-04-11'
updated: '2026-06-29'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2023-0645'
references:
  - url: 'https://github.com/libjxl/libjxl/pull/2101'
    label: cve-coordination@google.com
  - url: >-
      https://github.com/libjxl/libjxl/pull/2101/commits/d95b050c1822a5b1ede9e0dc937e43fca1b10159
    label: cve-coordination@google.com
  - url: 'http://www.openwall.com/lists/oss-security/2026/06/29/3'
    label: af854a3a-2127-422b-91ae-364da2661108
  - url: 'https://github.com/libjxl/libjxl/pull/2101'
    label: af854a3a-2127-422b-91ae-364da2661108
  - url: >-
      https://github.com/libjxl/libjxl/pull/2101/commits/d95b050c1822a5b1ede9e0dc937e43fca1b10159
    label: af854a3a-2127-422b-91ae-364da2661108
tags:
  - nvd
epss: 0.00854
epssPercentile: 0.56775
ingestedAt: '2026-06-29T21:48:47.187Z'
---

## Overview

An out of bounds read exists in libjxl. An attacker using a specifically crafted file could cause an out of bounds read in the exif handler. We recommend upgrading to version 0.8.1 or past commit  https://github.com/libjxl/libjxl/pull/2101/commits/d95b050c1822a5b1ede9e0dc937e43fca1b10159 https://github.com/libjxl/libjxl/pull/2101/commits/d95b050c1822a5b1ede9e0dc937e43fca1b10159 

## Affected

- `libjxl < 0.8.1`

## Remediation

Upgrade past the affected range:

- `libjxl 0.8.1`