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_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.
- Score
- 6.8 medium
- Published
- 2026-11-06
- Links
- NVD · cve.org · Report wrong data
Matched ports (1)
| Port | Package | Version | Status | Maintainer |
|---|---|---|---|---|
| multimedia/gpac | gpac | 26.07.0 | unaddressed | olivier@FreeBSD.org |
Template for a VuXML entry
Check the version numbers before you commit this entry. Some ports share an entry in the CVE database with another port, such as sqlite2 and sqlite3. The version shown here may then be one that never existed for this port.
Ranges per package from the CVE rows that match this port, in pkg notation with the port's epoch and revision, every bound checked with pkg; one range per epoch the port actually had. make newentry in security/vuxml creates the vid.
multimedia/gpac (CPE taken from Repology) has no USES=cpe. The CVE was matched through a CPE from another source, so the package and the version range may belong to a different product. Check the CVE record before using this entry.
<vuln vid="FIXME (make newentry)">
<topic>gpac -- FIXME</topic>
<affects>
<package>
<name>gpac</name>
<range><le>26.07.0</le></range>
</package>
</affects>
<description>
<body xmlns="http://www.w3.org/1999/xhtml">
<p>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_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.</p>
</body>
</description>
<references>
<cvename>CVE-2026-124031</cvename>
<url>https://nvd.nist.gov/vuln/detail/CVE-2026-124031</url>
</references>
<dates>
<discovery>2026-11-06</discovery>
<entry>2026-11-07</entry>
</dates>
</vuln>