Use After Free Vulnerability in GPAC MP4Box by GPAC
CVE-2026-90825

4.8MEDIUM

Key Information:

Vendor

GPAC

Status
Gpac
Vendor
CVE Published:
14 September 2026

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2026-90825?

A vulnerability discovered in GPAC version 26.07.0 affects the MP4Box component, specifically within the gf_node_unregister function in the base_scenegraph.c file. This vulnerability can lead to memory corruption through a use after free issue, which can only be exploited locally. An exploit has been made public, making it imperative for users to upgrade to version abi-16.23 to address this critical issue. The patch for this vulnerability is identified by commit 9eb40df4448b88d6a6ce3454657c06f47eff0b24.

Affected Version(s)

GPAC 26.07.0

GPAC abi-16.23

Exploit Proof of Concept (PoC)

PoC code is written by security researchers to demonstrate the vulnerability can be exploited. PoC code is also a key component for weaponization which could lead to ransomware.

CVE-2026-90825 - Proof of Concept

References

https://vuldb.com/vuln/403327
vdb-entrytechnical-description
https://vuldb.com/vuln/403327/cti
signaturepermissions-required
https://vuldb.com/cve/CVE-2026-90825
third-party-advisory

CVSS V4

Score:
4.8
Severity:
MEDIUM
Confidentiality:
None
Integrity:
None
Availability:
Low
Attack Vector:
Local
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
None

Timeline

  • 🟡

    Public PoC available

  • 👾

    Exploit known to exist

  • Vulnerability published

  • Vulnerability Reserved

Credit

fczhang (VulDB User)
.