---
id: CVE-2019-14493
aliases:
  - GHSA-3448-vrgh-85xr
  - PYSEC-2026-2795
  - PYSEC-2026-2806
  - PYSEC-2026-2834
  - PYSEC-2026-718
title: NULL Pointer Dereference in OpenCV.
summary: NULL Pointer Dereference in OpenCV.
severity: high
cvss: 7.5
cvssVector: 'CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H'
vendor: opencv-python
product: opencv-python
ecosystem: pip
affected:
  - opencv-python < 4.1.1.26
  - opencv-python-headless < 4.1.1.26
  - opencv-contrib-python < 4.1.1.26
  - opencv-contrib-python-headless < 4.1.1.26
patched:
  - opencv-python 4.1.1.26
  - opencv-python-headless 4.1.1.26
  - opencv-contrib-python 4.1.1.26
  - opencv-contrib-python-headless 4.1.1.26
published: '2021-10-12'
updated: '2026-09-10'
sourceUpdated: '2026-09-10T03:49:09.084248313Z'
source: OSV
sourceUrl: 'https://osv.dev/vulnerability/GHSA-3448-vrgh-85xr'
references:
  - url: 'https://nvd.nist.gov/vuln/detail/CVE-2019-14493'
  - url: 'https://github.com/opencv/opencv/issues/15127'
  - url: 'https://github.com/opencv/opencv-python'
  - url: 'https://github.com/opencv/opencv/compare/371bba8...ddbd10c'
  - url: 'https://lists.debian.org/debian-lts-announce/2021/10/msg00028.html'
tags:
  - osv
  - pip
epss: 0.03398
epssPercentile: 0.88324
ingestedAt: '2026-07-08T18:25:44.666Z'
---

## Overview

An issue was discovered in OpenCV before 4.1.1 (OpenCV-Python before 4.1.1.26). There is a NULL pointer dereference in the function cv::XMLParser::parse at modules/core/src/persistence.cpp.

## Affected packages

- `opencv-python < 4.1.1.26`
- `opencv-python-headless < 4.1.1.26`
- `opencv-contrib-python < 4.1.1.26`
- `opencv-contrib-python-headless < 4.1.1.26`

## Remediation

Upgrade to a patched release:

- `opencv-python 4.1.1.26`
- `opencv-python-headless 4.1.1.26`
- `opencv-contrib-python 4.1.1.26`
- `opencv-contrib-python-headless 4.1.1.26`