Use After Free Vulnerability in GPAC's Proto Link Handler Component
CVE-2026-92474

4.8MEDIUM

Key Information:

Vendor

GPAC

Status
Gpac
Vendor
CVE Published:
16 September 2026

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2026-92474?

A security vulnerability has been identified in GPAC 26.08-DEV, specifically within the Proto Link Handler component in the function gf_inline_get_proto_lib located in mpeg4_inline.c. This flaw can lead to a use after free scenario, where previously freed memory can be accessed, potentially resulting in arbitrary code execution. The vulnerability requires local access to exploit, making it imperative for users to upgrade to version abi-16.24, which includes an essential patch (commit e34f4ba349d55cd1849f0bcf4cf46552732e2db7) to mitigate this issue. Users are urged to upgrade promptly to avoid potential risks.

Affected Version(s)

GPAC 26.08-DEV

GPAC abi-16.24

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-2026-92474 - Proof of Concept

References

https://vuldb.com/vuln/405733
vdb-entrytechnical-description
https://vuldb.com/vuln/405733/cti
signaturepermissions-required
https://vuldb.com/cve/CVE-2026-92474
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)
.