CVE-2026-124031 Details
Description
GPAC through 26.07.0 contains a type confusion vulnerability in drawable_get_aspect_2d_mpeg4() and TraverseShape() that casts a Shape's appearance node to M_Appearance without checking its node tag. Attackers can supply a crafted XMT file placing another node type, such as Conditional, in the appearance field to trigger an invalid memory read and crash MP4Box.
A type confusion vulnerability has been identified in GPAC versions through 26.07.0. The issue arises in the MP4Box component, specifically within the 'drawable_get_aspect_2d_mpeg4' and 'TraverseShape' functions. The vulnerability allows attackers to manipulate a Shape's appearance node by inserting a different node type, such as Conditional, into the appearance field of a crafted XMT file. This exploitation triggers an invalid memory read, leading to a crash of the MP4Box application.
Users are advised to update to GPAC version 26.08 or later, where this vulnerability has been fixed.
Metrics
CVSS 4.0 Severity and Vector Strings:
VolerionCVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
Volerion
Assessed Nov 6, 2026References to Advisories, Solutions, and Tools
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Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-843 | Access of Resource Using Incompatible Type ('Type Confusion') | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| GPAC | <= 26.07.0 (semver) |
CPE
Remediation
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Change History
1 change record found show changes
| Date | Action | Recorded By |
|---|---|---|
| Nov 6, 2026 | New CVE Received | [email protected] |