Local Assertion Flaw in GPAC's MP4Box Component
CVE-2026-90613

4.8MEDIUM

Key Information:

Vendor

GPAC

Status
Gpac
Vendor
CVE Published:
14 September 2026

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2026-90613?

A security flaw exists in the MP4Box component of GPAC, specifically in the stbl_GetSampleInfos function located in the isomedia/stbl_read.c file. This vulnerability can lead to a reachable assertion when exploited from a local position. Attackers can trigger this flaw to disrupt normal operations or potentially execute malicious payloads. The vulnerability has been publicly disclosed, and users are strongly recommended to upgrade to version abi-16.23, which includes a patch identified as 49dee5cad329cfed310c1682703df7daa47df31a, to safeguard against this exploit.

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-2026-90613 - Proof of Concept

References

https://vuldb.com/vuln/403195
vdb-entrytechnical-description
https://vuldb.com/vuln/403195/cti
signaturepermissions-required
https://vuldb.com/cve/CVE-2026-90613
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

r1ck9 (VulDB User)
.