CVE-2026-91091
Received Received - Intake

Memory Corruption in GPAC via Node Insertion

Publication date: 2026-09-15

Last updated on: 2026-09-15

Assigner: VulDB

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.

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Meta Information

Published
2026-09-15
Last Modified
2026-09-15
Generated
2026-09-15
AI Q&A
2026-09-15
EPSS Evaluated
N/A
NVD
CVE-2026-91091
EUVD
EUVD-2026-78318

Affected Vendors & Products

Showing 2 associated CPEs
Vendor Product Version / Range
gpac gpac to f1219cde (exc)
gpac gpac abi-16.23

Helpful Resources

Exploitability

CWE
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KEV
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CWE ID Description
CWE-119 The product performs operations on a memory buffer, but it reads from or writes to a memory location outside the buffer's intended boundary. This may result in read or write operations on unexpected memory locations that could be linked to other variables, data structures, or internal program data.

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Executive Summary

This vulnerability is a memory corruption issue in GPAC software up to version f1219cde. It occurs in the function gf_node_list_insert_child within the file scenegraph/base_scenegraph.c. The flaw allows an attacker to manipulate node insertion, leading to memory corruption. The attack can be executed remotely and a public exploit is available.

Detection Guidance

To detect this vulnerability, monitor for crashes or segmentation faults when processing MP4 files with GPAC using the -nstatx command. Check for AddressSanitizer-reported SEGV errors related to invalid memory access in the gf_node_list_insert_child function.

Impact Analysis

This vulnerability can cause a segmentation fault (crash) in GPAC when processing a specially crafted MP4 file using the -nstatx command. It may lead to denial of service by crashing the application. If exploited, it could allow arbitrary code execution depending on the system configuration.

Mitigation Strategies

Upgrade GPAC to version abi-16.23 or later. The patch 49dee5cad329cfed310c1682703df7daa47df31a resolves this issue. Avoid processing untrusted MP4 files with the -nstatx command until patched.

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