Memory Corruption Vulnerability in GPAC MP4Box by GPAC
CVE-2026-90686

6.9MEDIUM

Key Information:

Vendor

GPAC

Status
Gpac
Vendor
CVE Published:
14 September 2026

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2026-90686?

A memory corruption vulnerability exists in GPAC's MP4Box component due to improper handling in the gf_bt_report function located in scene_manager/loader_bt.c. This security flaw allows attackers to execute remote exploits that can manipulate memory, potentially leading to unauthorized access or system compromise. Users are strongly advised to upgrade to version abi-16.23, where this issue has been addressed through patch afca1f1181668d85941d51ed1adf647807d5d975.

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-2026-90686 - Proof of Concept

References

https://vuldb.com/vuln/403219
vdb-entrytechnical-description
https://vuldb.com/vuln/403219/cti
signaturepermissions-required
https://vuldb.com/cve/CVE-2026-90686
third-party-advisory

CVSS V4

Score:
6.9
Severity:
MEDIUM
Confidentiality:
None
Integrity:
None
Availability:
Low
Attack Vector:
Network
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

Ech06 (VulDB User)
.