Use After Free Vulnerability in GPAC Software by GPAC Team
CVE-2026-91089

5.3MEDIUM

Key Information:

Vendor

GPAC

Status
Gpac
Vendor
CVE Published:
15 September 2026

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2026-91089?

A use after free vulnerability has been identified in GPAC, specifically within the function gf_node_get_name_and_id located in the file scenegraph/base_scenegraph.c. This flaw allows remote attackers to exploit the software by manipulating memory usage, potentially leading to unauthorized access or execution of arbitrary code. Users are advised to upgrade to version abi-16.23, which addresses the vulnerability with the patch identified as 49dee5cad329cfed310c1682703df7daa47df31a. Prompt actions are necessary 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-2026-91089 - Proof of Concept

References

https://vuldb.com/vuln/403651
vdb-entrytechnical-description
https://vuldb.com/vuln/403651/cti
signaturepermissions-required
https://vuldb.com/cve/CVE-2026-91089
third-party-advisory

CVSS V4

Score:
5.3
Severity:
MEDIUM
Confidentiality:
Low
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

wsstssw (VulDB User)
.