{"id":"CVE-2026-124031","published":"2026-11-06T20:17:21.853","lastModified":"2026-11-09T23:17:18.140","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.","cvssScore":5.5,"cvssSeverity":"MEDIUM","cvssVector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H","cwes":["CWE-843"],"vendors":[],"products":[],"references":[{"url":"https://github.com/gpac/gpac","tags":[]},{"url":"https://github.com/gpac/gpac/blob/v26.07.0/src/compositor/drawable.c#L564-L565","tags":[]},{"url":"https://github.com/gpac/gpac/commit/43a8329a90ae2907716b593cc3746458516c7c39","tags":[]},{"url":"https://github.com/gpac/gpac/issues/4030","tags":[]},{"url":"https://github.com/sigdevel/pocs/blob/main/res/gpac/MP4Box/222/222_gf_node_get_tag_compositor_texturing_c_370.xmt","tags":[]},{"url":"https://www.vulncheck.com/advisories/gpac-through-26.07.0-type-confusion-via-drawable-get-aspect-2d-mpeg4","tags":[]}],"exploitRefs":[{"url":"https://github.com/gpac/gpac","tags":[]},{"url":"https://github.com/gpac/gpac/blob/v26.07.0/src/compositor/drawable.c#L564-L565","tags":[]},{"url":"https://github.com/gpac/gpac/commit/43a8329a90ae2907716b593cc3746458516c7c39","tags":[]},{"url":"https://github.com/gpac/gpac/issues/4030","tags":[]},{"url":"https://github.com/sigdevel/pocs/blob/main/res/gpac/MP4Box/222/222_gf_node_get_tag_compositor_texturing_c_370.xmt","tags":[]}],"hasPoc":true,"ai":null}