Vulnerability DatabaseCVE-2026-124031
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CVE-2026-124031
Published:November 06, 2026
Updated:November 09, 2026
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.
Related Resources (8)
https://github.com/gpac/gpac/issues/4030
https://github.com/sigdevel/pocs/blob/main/res/gpac/MP4Box/222/222_gf_node_get_tag_compositor_texturing_c_370.xmt
https://github.com/gpac/gpac/blob/v26.07.0/src/compositor/drawable.c#L564-L565
https://nvd.nist.gov/vuln/detail/CVE-2026-124031
https://github.com/gpac/gpac
https://www.vulncheck.com/advisories/gpac-through-26.07.0-type-confusion-via-drawable-get-aspect-2d-mpeg4
https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/124xxx/CVE-2026-124031.json
https://github.com/gpac/gpac/commit/43a8329a90ae2907716b593cc3746458516c7c39
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CVSS v4
Base Score:
6.8
Attack Vector
LOCAL
Attack Complexity
LOW
Attack Requirements
NONE
Privileges Required
NONE
User Interaction
PASSIVE
Vulnerable System Confidentiality
NONE
Vulnerable System Integrity
NONE
Vulnerable System Availability
HIGH
Subsequent System Confidentiality
NONE
Subsequent System Integrity
NONE
Subsequent System Availability
NONE
CVSS v3
Base Score:
5.5
Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality
NONE
Integrity
NONE
Availability
HIGH
Weakness Type (CWE)
Access of Resource Using Incompatible Type
CWE-843
EPSS
Base Score:
0.12