Use After Free Vulnerability in GPAC MP4Box Affects Multiple Versions
CVE-2026-90793

5.3MEDIUM

Key Information:

Vendor

GPAC

Status
Gpac
Vendor
CVE Published:
14 September 2026

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2026-90793?

A vulnerability in GPAC's MP4Box component has been discovered in the function gf_node_get_name located in scenegraph/base_scenegraph.c, leading to potential use after free scenarios. This vulnerability allows attackers to manipulate remote calls effectively. It has been publicly disclosed, necessitating immediate action to protect systems. Users are urged to upgrade to version abi-16.23 and apply patch 9eb40df4448b88d6a6ce3454657c06f47eff0b24 to mitigate the risks associated with this vulnerability.

Affected Version(s)

GPAC f1219cde

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-2026-90793 - Proof of Concept

References

https://vuldb.com/vuln/403299
vdb-entrytechnical-description
https://vuldb.com/vuln/403299/cti
signaturepermissions-required
https://vuldb.com/cve/CVE-2026-90793
third-party-advisory

CVSS V4

Score:
5.3
Severity:
MEDIUM
Confidentiality:
None
Integrity:
Low
Availability:
Low
Attack Vector:
Network
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
Unknown

Timeline

  • 🟡

    Public PoC available

  • 👾

    Exploit known to exist

  • Vulnerability published

  • Vulnerability Reserved

Credit

Ech06 (VulDB User)
.