CVE-2026-124030

Published: Nov 6, 2026Modified: Nov 14, 2026Deferred

6.8

Vector

CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

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CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:XShow less

Source: disclosure@vulncheck.com (Secondary)

Description

GPAC through 26.07.0 contains a type confusion vulnerability in gf_sg_command_apply() in src/scenegraph/commands.c that fails to verify BIFS field-replace command types match target node fields. Attackers can supply a crafted XMT file opened with MP4Box, such as via chapter import, causing gf_sg_vrml_field_clone() to memcpy from invalid pointers and crash.

Related CWEs

Access of Resource Using Incompatible Type ('Type Confusion')

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.

References (7)

https://github.com/gpac/gpac

Source: disclosure@vulncheck.com

https://github.com/gpac/gpac/blob/v26.07.0/src/scenegraph/commands.c#L321

Source: disclosure@vulncheck.com

https://github.com/gpac/gpac/commit/1359c4da9329cedceeb8fcfeab6d97e0927236e1

Source: disclosure@vulncheck.com

https://github.com/gpac/gpac/issues/4032

Source: disclosure@vulncheck.com

https://github.com/sigdevel/pocs/blob/main/res/gpac/MP4Box/224/224_gf_sg_command_apply_scenegraph_commands_c_346.xmt

Source: disclosure@vulncheck.com

https://www.vulncheck.com/advisories/gpac-through-26.07.0-type-confusion-via-gf-sg-command-apply-xmt-field-replace

Source: disclosure@vulncheck.com

http://www.openwall.com/lists/oss-security/2026/11/14/12

Source: af854a3a-2127-422b-91ae-364da2661108

Timeline

No history available yet.