CVE-2026-124031
Deferred Deferred - Pending Action

Type Confusion in GPAC MP4Box via XMT File

Publication date: 2026-11-06

Last updated on: 2026-11-06

Assigner: VulnCheck

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.

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Meta Information

Published
2026-11-06
Last Modified
2026-11-06
Generated
2026-11-06
EPSS Evaluated
N/A
NVD
CVE-2026-124031
EUVD
EUVD-2026-118439

Affected Vendors & Products

Showing 1 associated CPE
Vendor Product Version / Range
gpac gpac From 0 (inc) to 26.7.0 (inc)

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Exploitability

CWE
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KEV
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CWE ID Description
CWE-843 The product allocates or initializes a resource such as a pointer, object, or variable using one type, but it later accesses that resource using a type that is incompatible with the original type.

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