CVE-2026-90827
Deferred Deferred - Pending Action

Use After Free in GPAC MP4Box via gf_node_deactivate_ex

Vulnerability report for CVE-2026-90827, including description, CVSS score, EPSS score, affected products, exploitability, helpful resources, and attack-flow context.

Publication date: 2026-09-14

Last updated on: 2026-09-15

Assigner: VulDB

Description

A vulnerability was identified in GPAC 26.07.0. This affects the function gf_node_deactivate_ex of the file scenegraph/base_scenegraph.c of the component MP4Box. Such manipulation leads to use after free. The attack must be carried out locally. The exploit is publicly available and might be used. Upgrading to version abi-16.23 is able to mitigate this issue. The name of the patch is 49dee5cad329cfed310c1682703df7daa47df31a. You should upgrade the affected component.

CVSS Scores

EPSS Scores

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Meta Information

Published
2026-09-14
Last Modified
2026-09-15
Generated
2026-10-05
AI Q&A
2026-09-15
EPSS Evaluated
2026-10-04
NVD
EUVD

Affected Vendors & Products

Showing 2 associated CPEs
Vendor Product Version / Range
gpac gpac 26.07.0
gpac mp4box From abi-16.23 (inc)

Helpful Resources

Exploitability

CWE
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KEV
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CWE ID Description
CWE-416 The product reuses or references memory after it has been freed. At some point afterward, the memory may be allocated again and saved in another pointer, while the original pointer references a location somewhere within the new allocation. Any operations using the original pointer are no longer valid because the memory "belongs" to the code that operates on the new pointer.
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.

Attack-Flow Graph

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Executive Summary

This is a use-after-free vulnerability in GPAC 26.07.0, specifically in the function gf_node_deactivate_ex within the file scenegraph/base_scenegraph.c of the MP4Box component. It allows an attacker to exploit memory corruption by manipulating the function, leading to potential arbitrary code execution or crashes.

Detection Guidance

This vulnerability is a local use-after-free issue in GPAC's MP4Box component. Detection requires checking the installed version of GPAC/MP4Box. Run 'mp4box -version' or 'gpac -version' to verify if the affected version (26.07.0) is present.

Impact Analysis

The vulnerability requires local access to exploit and could allow an attacker to execute arbitrary code or cause a denial of service on the affected system. Since the exploit is publicly available, the risk of misuse is higher. Upgrading to version abi-16.23 mitigates this issue.

Compliance Impact

This vulnerability involves a use-after-free issue in GPAC 26.07.0, which could lead to local attacks. It does not directly impact compliance with GDPR or HIPAA as it is a technical flaw in a media processing tool rather than a data privacy breach. However, if exploited, it could potentially compromise system integrity, indirectly affecting compliance by enabling unauthorized access or data manipulation.

Mitigation Strategies

Upgrade GPAC to version abi-16.23 or later. The patch is identified as 49dee5cad329cfed310c1682703df7daa47df31a. Use your package manager or compile from source with the patched version.

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