---
id: CVE-2026-88339
title: >-
  A NULL pointer dereference vulnerability exists in the
  gf_sg_vrml_field_clone() function of GPAC 2d7da22e (26.08-DEV)
summary: >-
  A NULL pointer dereference vulnerability exists in the
  gf_sg_vrml_field_clone() function of GPAC 2d7da22e (26.08-DEV). The
  vulnerability occurs when cloning a PROTO default SFImage field with a NULL
  source pointer. An attacker can provid…
severity: medium
cvss: 5.5
cvssVector: 'CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H'
cwe:
  - CWE-476
published: '2026-09-22'
updated: '2026-09-24'
sourceUpdated: '2026-09-24T21:08:55.030'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-88339'
references:
  - url: 'https://github.com/gpac/gpac/issues/3855'
    label: cve@mitre.org
  - url: >-
      https://github.com/makesoftwaresafe/gpac/commit/c748219af5968fd70f6dc7ebe4d6dd9f495d4425
    label: cve@mitre.org
  - url: 'https://github.com/gpac/gpac/issues/3855'
    label: 134c704f-9b21-4f2e-91b3-4a467353bcc0
tags:
  - nvd
  - cve.org
  - exploit-available
epss: 0.00168
epssPercentile: 0.05354
exploitAvailable: true
ssvc:
  exploitation: poc
  automatable: 'no'
  technicalImpact: partial
  timestamp: '2026-09-23T15:11:28.545287Z'
ingestedAt: '2026-09-22T20:10:15.100Z'
---

## Overview

A NULL pointer dereference vulnerability exists in the gf_sg_vrml_field_clone() function of GPAC 2d7da22e (26.08-DEV). The vulnerability occurs when cloning a PROTO default SFImage field with a NULL source pointer. An attacker can provide a specially crafted input file that triggers the condition, resulting in application crash and denial of service.

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.