Medium severity · published Sep 14, 2026
CVE-2026-90791
GPAC MP4Box base_scenegraph.c gf_node_unregister use after free
6.3
CVSS
0.5%
EPSS
No
On KEV
Description
A vulnerability was detected in GPAC up to f1219cde. This vulnerability affects the function gf_node_unregister of the file scenegraph/base_scenegraph.c of the component MP4Box. The manipulation results in use after free. The attack can be executed remotely. The exploit is now public and may be used. Upgrading to version abi-16.23 is able to resolve this issue. The patch is identified as 9eb40df4448b88d6a6ce3454657c06f47eff0b24. Upgrading the affected component is recommended.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:L
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
Required
Confidentiality
Low
Integrity
Low
Availability
Low
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.5% · higher than 43% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
GP
GPAC · Gpac
f1219cde · source: vendor
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-90791
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-90791
github.com
https://github.com/Ech06/CVE_submit/blob/main/gpac_3801.md
github.com
https://github.com/gpac/gpac/
github.com
https://github.com/gpac/gpac/commit/9eb40df4448b88d6a6ce3454657c06f47eff0b24
github.com
https://github.com/gpac/gpac/issues/3801
github.com
https://github.com/gpac/gpac/releases/tag/abi-16.23
vuldb.com
https://vuldb.com/cve/CVE-2026-90791
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