Out-of-Bounds Read Vulnerability in GPAC MP4Box by GPAC
CVE-2026-90826

2.4LOW

Key Information:

Vendor

GPAC

Status
Gpac
Vendor
CVE Published:
14 September 2026

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2026-90826?

A vulnerability has been identified in GPAC version 26.07.0, specifically in the gf_node_del function within the scenegraph/base_scenegraph.c file of the MP4Box component. This vulnerability is characterized by out-of-bounds read manipulation, which may permit attackers to exploit the issue, although it is limited to local execution. The vulnerability has been publicly disclosed, and users are encouraged to upgrade to version abi-16.23 to mitigate potential risks. A corresponding patch has been released to address this security concern.

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-2026-90826 - Proof of Concept

References

https://vuldb.com/vuln/403328
vdb-entrytechnical-description
https://vuldb.com/vuln/403328/cti
signaturepermissions-required
https://vuldb.com/cve/CVE-2026-90826
third-party-advisory

CVSS V4

Score:
2.4
Severity:
LOW
Confidentiality:
None
Integrity:
None
Availability:
Low
Attack Vector:
Local
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

fczhang (VulDB User)
.