Vulnerability · Published Sep 15, 2026 · Assigned by VulDB

CVE-2026-91091GPAC Node Insertion base_scenegraph.c gf_node_list_insert_child memory corruption

Medium 4.3

In plain English

A medium-severity memory corruption in GPAC. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.7% (higher than 53% of all known vulnerabilities).

Severity (CVSS 3.1)4.3Medium

Exploit odds (30 days)0.7%top 47.1% of all CVEs

Exploited in the wildNo reportsCISA SSVC: poc

Attack toolingNoneno public tooling known

Official description

A vulnerability was identified in GPAC up to f1219cde. The impacted element is the function gf_node_list_insert_child of the file scenegraph/base_scenegraph.c of the component Node Insertion. Such manipulation leads to memory corruption. The attack can be launched remotely. The exploit is publicly available and might be used. Upgrading to version abi-16.23 is sufficient to resolve this issue. The name of the patch is 49dee5cad329cfed310c1682703df7daa47df31a. It is suggested to upgrade the affected component.

Affected products (as reported)

Vendor	Product	Versions
n/a	GPAC	f1219cde

Weakness: CWE-119 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L/E:P/RL:O/RC:C

References

VDB-403653 | GPAC Node Insertion base_scenegraph.c gf_node_list_insert_child memory corruption vdb-entry, technical-description
VDB-403653 | CTI Indicators (IOB, IOC, IOA) signature, permissions-required
CVE-2026-91091 | CVE Analysis and Report third-party-advisory
Submit #919761 | GPAC master f1219cde (2026-07-25) Memory Corruption third-party-advisory
https://github.com/gpac/gpac/issues/3811 issue-tracking
https://github.com/user-attachments/files/30400179/poc_18_nstatx.zip exploit
https://github.com/gpac/gpac/commit/49dee5cad329cfed310c1682703df7daa47df31a patch
https://github.com/gpac/gpac/releases/tag/abi-16.23 patch
https://github.com/gpac/gpac/ product