MEDIUM 6.8 NVD
CVE-2026-124031
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_App
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.
References
- https://github.com/gpac/gpac
- https://github.com/gpac/gpac/blob/v26.07.0/src/compositor/drawable.c#L564-L565
- https://github.com/gpac/gpac/commit/43a8329a90ae2907716b593cc3746458516c7c39
- https://github.com/gpac/gpac/issues/4030
- https://github.com/sigdevel/pocs/blob/main/res/gpac/MP4Box/222/222_gf_node_get_tag_composi
This medium severity vulnerability with a CVSS score of 6.8 was published on 2026-11-06 via NVD.
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