---
id: "CVE-2026-46472"
kind: "vulnerability"
aliases: ["CVE-2026-46472"]
title: "GStreamer gst-plugins-good: MP4 parser may read past array end"
severity: "high"
cvss: 7.5
epss: null
exploited: false
status: "open"
category: "package"
products: []
ecosystems: []
tags: ["gstreamer", "linux", "media-pipelines", "package"]
not_affected_if: ["no-mp4-parsing"]
published_at: "2026-10-16T16:18:11+00:00"
first_seen_at: "2026-10-23T21:57:13+00:00"
updated_at: "2026-10-25T03:25:02+00:00"
sources: [{"source": "nvd", "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-46472", "first_seen_at": "2026-10-23T21:57:13+00:00"}]
---

# GStreamer gst-plugins-good: MP4 parser may read past array end

GStreamer's gst-plugins-good isomp4 plugin, in function qtdemux_parse_chnl, can read past the end of a global array while parsing an MP4 file. The likely result is information disclosure from process memory.

_Summary, check and fix written by a model from the sources; labelled as such._

## How to check

- Check the installed gst-plugins-good version with `gst-inspect-1.0 --version` or your package manager (for example `dpkg -l | grep gst-plugins-good`).
- Confirm whether the isomp4 demuxer is in use, for example `gst-inspect-1.0 isomp4`.

## Fix

- Upgrade gst-plugins-good to `1.28.2` or later.

## Timeline

- 2026-10-23T21:57:13+00:00 nvd https://nvd.nist.gov/vuln/detail/CVE-2026-46472

## From the sources

An issue was discovered in GStreamer gst-plugins-good before 1.28.2. While parsing an MP4 file, the isomp4 plugin's qtdemux_parse_chnl function may read past the end of a global array, potentially leading to information disclosure.

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