# CVE-2026-18296: gst-plugins-good1.0: GStreamer MRF File Parsing Heap-based Buffer Overflow Remote Code Execution Vulnerability

CVE-2026-18296 is fixed in 22 products on 1 platform, first by gstreamer1.0-gtk3 1.14.5-0ubuntu1~18.04.3+esm3, released August 20, 2026. It is not reported as exploited. Patch Radar priority: High.

- Web page: https://patchblox.com/security/cve/CVE-2026-18296
- Priority: High
- CVSS: 8.8 (high)
- EPSS: 0.0023
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: Aug 20, 2026

## Description

GStreamer MRF File Parsing Heap-based Buffer Overflow Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of GStreamer. User interaction is required to exploit this vulnerability in that the target must visit a malicious page or open a malicious file.  The specific flaw exists within the parsing of MRF files. The issue results from the lack of proper validation of the length of user-supplied data prior to copying it to a heap-based buffer. An attacker can leverage this vulnerability to execute code in the context of the current process. Was ZDI-CAN-29608.

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Linux | gst-plugins-good1.0 Debian 14 | 1.28.5-1 | [DEBIAN-CVE-2026-18296](https://patchblox.com/security/data/fix/linux/debian-cve-2026-18296.md) | Aug 25, 2026 |
| Linux | gstreamer1-plugins-good RHEL 10 | 1.24.11-1.el10_0.7 | [RHSA-2026:71650](https://patchblox.com/security/data/fix/linux/rhsa-2026-71650.md) | Aug 26, 2026 |
| Linux | gstreamer1-plugins-good RHEL 8 | 0:1.16.1-7.el8_10.7 | [RHSA-2026:59179](https://patchblox.com/security/data/fix/linux/rhsa-2026-59179.md) | Aug 28, 2026 |
| Linux | gstreamer1-plugins-good RHEL 9 | 0:1.22.12-7.el9_8.8 | [RHSA-2026:59152](https://patchblox.com/security/data/fix/linux/rhsa-2026-59152.md) | Aug 28, 2026 |
| Linux | gstreamer1-plugins-good almalinux 10 | 1.26.7-2.el10_2.7 | [ALSA-2026:59133](https://patchblox.com/security/data/fix/linux/alsa-2026-59133.md) | Aug 24, 2026 |
| Linux | gstreamer1-plugins-good almalinux 8 | 1.16.1-7.el8_10.7 | [ALSA-2026:59179](https://patchblox.com/security/data/fix/linux/alsa-2026-59179.md) | Aug 24, 2026 |
| Linux | gstreamer1-plugins-good almalinux 9 | 1.22.12-7.el9_8.8 | [ALSA-2026:59152](https://patchblox.com/security/data/fix/linux/alsa-2026-59152.md) | Aug 24, 2026 |
| Linux | gstreamer1-plugins-good amzn 2023 | 1.24.10-1.amzn2023.0.8 | [ALAS2023-2026-2121](https://patchblox.com/security/data/fix/linux/alas2023-2026-2121.md) | Aug 31, 2026 |
| Linux | gstreamer1-plugins-good ol 10 | 0:1.26.7-2.el10_2.7 | [ELSA-2026-59133](https://patchblox.com/security/data/fix/linux/elsa-2026-59133.md) | Aug 24, 2026 |
| Linux | gstreamer1-plugins-good ol 8 | 0:1.16.1-7.el8_10.7 | [ELSA-2026-59179](https://patchblox.com/security/data/fix/linux/elsa-2026-59179.md) | Aug 24, 2026 |
| Linux | gstreamer1-plugins-good ol 9 | 0:1.22.12-7.el9_8.8 | [ELSA-2026-59152](https://patchblox.com/security/data/fix/linux/elsa-2026-59152.md) | Aug 24, 2026 |
| Linux | gstreamer1-plugins-good rocky 10 | 0:1.26.7-2.el10_2.7 | [RLSA-2026:59133](https://patchblox.com/security/data/fix/linux/rlsa-2026-59133.md) | Aug 25, 2026 |
| Linux | gstreamer1-plugins-good rocky 8 | 0:1.16.1-7.el8_10.7 | [RLSA-2026:59179](https://patchblox.com/security/data/fix/linux/rlsa-2026-59179.md) | Aug 25, 2026 |
| Linux | gstreamer1-plugins-good rocky 9 | 0:1.22.12-7.el9_8.8 | [RLSA-2026:59152](https://patchblox.com/security/data/fix/linux/rlsa-2026-59152.md) | Aug 25, 2026 |
| Linux | gstreamer1-plugins-good-debuginfo amzn 2023 | 1.24.10-1.amzn2023.0.8 | [ALAS2023-2026-2121](https://patchblox.com/security/data/fix/linux/alas2023-2026-2121.md) | Aug 31, 2026 |
| Linux | gstreamer1-plugins-good-debugsource amzn 2023 | 1.24.10-1.amzn2023.0.8 | [ALAS2023-2026-2121](https://patchblox.com/security/data/fix/linux/alas2023-2026-2121.md) | Aug 31, 2026 |
| Linux | gstreamer1-plugins-good-gtk RHEL 8 | 0:1.16.1-7.el8_10.7 | [RHSA-2026:59179](https://patchblox.com/security/data/fix/linux/rhsa-2026-59179.md) | Aug 28, 2026 |
| Linux | gstreamer1-plugins-good-gtk RHEL 9 | 0:1.22.12-7.el9_8.8 | [RHSA-2026:59152](https://patchblox.com/security/data/fix/linux/rhsa-2026-59152.md) | Aug 28, 2026 |
| Linux | gstreamer1-plugins-good-gtk almalinux 10 | 1.26.7-2.el10_2.7 | [ALSA-2026:59133](https://patchblox.com/security/data/fix/linux/alsa-2026-59133.md) | Aug 24, 2026 |
| Linux | gstreamer1-plugins-good-gtk almalinux 8 | 1.16.1-7.el8_10.7 | [ALSA-2026:59179](https://patchblox.com/security/data/fix/linux/alsa-2026-59179.md) | Aug 24, 2026 |
| Linux | gstreamer1-plugins-good-gtk almalinux 9 | 1.22.12-7.el9_8.8 | [ALSA-2026:59152](https://patchblox.com/security/data/fix/linux/alsa-2026-59152.md) | Aug 24, 2026 |
| Linux | gstreamer1-plugins-good-gtk amzn 2023 | 1.24.10-1.amzn2023.0.8 | [ALAS2023-2026-2121](https://patchblox.com/security/data/fix/linux/alas2023-2026-2121.md) | Aug 31, 2026 |
| Linux | gstreamer1-plugins-good-gtk ol 10 | 0:1.26.7-2.el10_2.7 | [ELSA-2026-59133](https://patchblox.com/security/data/fix/linux/elsa-2026-59133.md) | Aug 24, 2026 |
| Linux | gstreamer1-plugins-good-gtk ol 8 | 0:1.16.1-7.el8_10.7 | [ELSA-2026-59179](https://patchblox.com/security/data/fix/linux/elsa-2026-59179.md) | Aug 24, 2026 |
| Linux | gstreamer1-plugins-good-gtk ol 9 | 0:1.22.12-7.el9_8.8 | [ELSA-2026-59152](https://patchblox.com/security/data/fix/linux/elsa-2026-59152.md) | Aug 24, 2026 |
| Linux | gstreamer1-plugins-good-gtk-debuginfo amzn 2023 | 1.24.10-1.amzn2023.0.8 | [ALAS2023-2026-2121](https://patchblox.com/security/data/fix/linux/alas2023-2026-2121.md) | Aug 31, 2026 |
| Linux | gstreamer1.0-gtk3 Ubuntu 18.04.6 LTS (bionic) | 1.14.5-0ubuntu1~18.04.3+esm3 | [gstreamer1.0-gtk3 1.14.5-0ubuntu1~18.04.3+esm3](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-gstreamer1.0-gtk3-1.14.5-0ubuntu1-18.04.3-esm3.md) | Aug 20, 2026 |
| Linux | gstreamer1.0-gtk3 Ubuntu 20.04 LTS (focal) | 1.16.3-0ubuntu1.3+esm3 | [gstreamer1.0-gtk3 1.16.3-0ubuntu1.3+esm3](https://patchblox.com/security/data/fix/linux/ubuntu-focal-gstreamer1.0-gtk3-1.16.3-0ubuntu1.3-esm3.md) | Aug 20, 2026 |
| Linux | gstreamer1.0-gtk3 Ubuntu 22.04.1 LTS (jammy) | 1.20.3-0ubuntu1.9 | [gstreamer1.0-gtk3 1.20.3-0ubuntu1.9](https://patchblox.com/security/data/fix/linux/ubuntu-jammy-gstreamer1.0-gtk3-1.20.3-0ubuntu1.9.md) | Aug 20, 2026 |
| Linux | gstreamer1.0-gtk3 Ubuntu 24.04.5 LTS (noble) | 1.24.2-1ubuntu1.7 | [gstreamer1.0-gtk3 1.24.2-1ubuntu1.7](https://patchblox.com/security/data/fix/linux/ubuntu-noble-gstreamer1.0-gtk3-1.24.2-1ubuntu1.7.md) | Aug 20, 2026 |
| Linux | gstreamer1.0-gtk3 Ubuntu 26.04.1 LTS (resolute) | 1.28.2-2ubuntu0.3 | [gstreamer1.0-gtk3 1.28.2-2ubuntu0.3](https://patchblox.com/security/data/fix/linux/ubuntu-resolute-gstreamer1.0-gtk3-1.28.2-2ubuntu0.3.md) | Aug 20, 2026 |
| Linux | gstreamer1.0-plugins-good Ubuntu 18.04.6 LTS (bionic) | 1.14.5-0ubuntu1~18.04.3+esm3 | [gstreamer1.0-plugins-good 1.14.5-0ubuntu1~18.04.3+esm3](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-gstreamer1.0-plugins-good-1.14.5-0ubuntu1-18.04.3-esm3.md) | Aug 20, 2026 |
| Linux | gstreamer1.0-plugins-good Ubuntu 20.04 LTS (focal) | 1.16.3-0ubuntu1.3+esm3 | [gstreamer1.0-plugins-good 1.16.3-0ubuntu1.3+esm3](https://patchblox.com/security/data/fix/linux/ubuntu-focal-gstreamer1.0-plugins-good-1.16.3-0ubuntu1.3-esm3.md) | Aug 20, 2026 |
| Linux | gstreamer1.0-plugins-good Ubuntu 22.04.1 LTS (jammy) | 1.20.3-0ubuntu1.9 | [gstreamer1.0-plugins-good 1.20.3-0ubuntu1.9](https://patchblox.com/security/data/fix/linux/ubuntu-jammy-gstreamer1.0-plugins-good-1.20.3-0ubuntu1.9.md) | Aug 20, 2026 |
| Linux | gstreamer1.0-plugins-good Ubuntu 24.04.5 LTS (noble) | 1.24.2-1ubuntu1.7 | [gstreamer1.0-plugins-good 1.24.2-1ubuntu1.7](https://patchblox.com/security/data/fix/linux/ubuntu-noble-gstreamer1.0-plugins-good-1.24.2-1ubuntu1.7.md) | Aug 20, 2026 |
| Linux | gstreamer1.0-plugins-good Ubuntu 26.04.1 LTS (resolute) | 1.28.2-2ubuntu0.3 | [gstreamer1.0-plugins-good 1.28.2-2ubuntu0.3](https://patchblox.com/security/data/fix/linux/ubuntu-resolute-gstreamer1.0-plugins-good-1.28.2-2ubuntu0.3.md) | Aug 20, 2026 |
| Linux | gstreamer1.0-pulseaudio Ubuntu 18.04.6 LTS (bionic) | 1.14.5-0ubuntu1~18.04.3+esm3 | [gstreamer1.0-pulseaudio 1.14.5-0ubuntu1~18.04.3+esm3](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-gstreamer1.0-pulseaudio-1.14.5-0ubuntu1-18.04.3-esm3.md) | Aug 20, 2026 |
| Linux | gstreamer1.0-pulseaudio Ubuntu 20.04 LTS (focal) | 1.16.3-0ubuntu1.3+esm3 | [gstreamer1.0-pulseaudio 1.16.3-0ubuntu1.3+esm3](https://patchblox.com/security/data/fix/linux/ubuntu-focal-gstreamer1.0-pulseaudio-1.16.3-0ubuntu1.3-esm3.md) | Aug 20, 2026 |
| Linux | gstreamer1.0-pulseaudio Ubuntu 22.04.1 LTS (jammy) | 1.20.3-0ubuntu1.9 | [gstreamer1.0-pulseaudio 1.20.3-0ubuntu1.9](https://patchblox.com/security/data/fix/linux/ubuntu-jammy-gstreamer1.0-pulseaudio-1.20.3-0ubuntu1.9.md) | Aug 20, 2026 |
| Linux | gstreamer1.0-pulseaudio Ubuntu 24.04.5 LTS (noble) | 1.24.2-1ubuntu1.7 | [gstreamer1.0-pulseaudio 1.24.2-1ubuntu1.7](https://patchblox.com/security/data/fix/linux/ubuntu-noble-gstreamer1.0-pulseaudio-1.24.2-1ubuntu1.7.md) | Aug 20, 2026 |
| Linux | gstreamer1.0-pulseaudio Ubuntu 26.04.1 LTS (resolute) | 1.28.2-2ubuntu0.3 | [gstreamer1.0-pulseaudio 1.28.2-2ubuntu0.3](https://patchblox.com/security/data/fix/linux/ubuntu-resolute-gstreamer1.0-pulseaudio-1.28.2-2ubuntu0.3.md) | Aug 20, 2026 |
| Linux | gstreamer1.0-qt5 Ubuntu 18.04.6 LTS (bionic) | 1.14.5-0ubuntu1~18.04.3+esm3 | [gstreamer1.0-qt5 1.14.5-0ubuntu1~18.04.3+esm3](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-gstreamer1.0-qt5-1.14.5-0ubuntu1-18.04.3-esm3.md) | Aug 20, 2026 |
| Linux | gstreamer1.0-qt5 Ubuntu 20.04 LTS (focal) | 1.16.3-0ubuntu1.3+esm3 | [gstreamer1.0-qt5 1.16.3-0ubuntu1.3+esm3](https://patchblox.com/security/data/fix/linux/ubuntu-focal-gstreamer1.0-qt5-1.16.3-0ubuntu1.3-esm3.md) | Aug 20, 2026 |
| Linux | gstreamer1.0-qt5 Ubuntu 22.04.1 LTS (jammy) | 1.20.3-0ubuntu1.9 | [gstreamer1.0-qt5 1.20.3-0ubuntu1.9](https://patchblox.com/security/data/fix/linux/ubuntu-jammy-gstreamer1.0-qt5-1.20.3-0ubuntu1.9.md) | Aug 20, 2026 |
| Linux | gstreamer1.0-qt5 Ubuntu 24.04.5 LTS (noble) | 1.24.2-1ubuntu1.7 | [gstreamer1.0-qt5 1.24.2-1ubuntu1.7](https://patchblox.com/security/data/fix/linux/ubuntu-noble-gstreamer1.0-qt5-1.24.2-1ubuntu1.7.md) | Aug 20, 2026 |
| Linux | gstreamer1.0-qt5 Ubuntu 26.04.1 LTS (resolute) | 1.28.2-2ubuntu0.3 | [gstreamer1.0-qt5 1.28.2-2ubuntu0.3](https://patchblox.com/security/data/fix/linux/ubuntu-resolute-gstreamer1.0-qt5-1.28.2-2ubuntu0.3.md) | Aug 20, 2026 |
| Linux | gstreamer1.0-qt6 Ubuntu 24.04.5 LTS (noble) | 1.24.2-1ubuntu1.7 | [gstreamer1.0-qt6 1.24.2-1ubuntu1.7](https://patchblox.com/security/data/fix/linux/ubuntu-noble-gstreamer1.0-qt6-1.24.2-1ubuntu1.7.md) | Aug 20, 2026 |
| Linux | gstreamer1.0-qt6 Ubuntu 26.04.1 LTS (resolute) | 1.28.2-2ubuntu0.3 | [gstreamer1.0-qt6 1.28.2-2ubuntu0.3](https://patchblox.com/security/data/fix/linux/ubuntu-resolute-gstreamer1.0-qt6-1.28.2-2ubuntu0.3.md) | Aug 20, 2026 |
| Linux | libgstreamer-plugins-good1.0-0 Ubuntu 18.04.6 LTS (bionic) | 1.14.5-0ubuntu1~18.04.3+esm3 | [libgstreamer-plugins-good1.0-0 1.14.5-0ubuntu1~18.04.3+esm3](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-libgstreamer-plugins-good1.0-0-1.14.5-0ubuntu1-18.04.3-esm3.md) | Aug 20, 2026 |
| Linux | libgstreamer-plugins-good1.0-0 Ubuntu 20.04 LTS (focal) | 1.16.3-0ubuntu1.3+esm3 | [libgstreamer-plugins-good1.0-0 1.16.3-0ubuntu1.3+esm3](https://patchblox.com/security/data/fix/linux/ubuntu-focal-libgstreamer-plugins-good1.0-0-1.16.3-0ubuntu1.3-esm3.md) | Aug 20, 2026 |
| Linux | libgstreamer-plugins-good1.0-0 Ubuntu 22.04.1 LTS (jammy) | 1.20.3-0ubuntu1.9 | [libgstreamer-plugins-good1.0-0 1.20.3-0ubuntu1.9](https://patchblox.com/security/data/fix/linux/ubuntu-jammy-libgstreamer-plugins-good1.0-0-1.20.3-0ubuntu1.9.md) | Aug 20, 2026 |
| Linux | libgstreamer-plugins-good1.0-0 Ubuntu 24.04.5 LTS (noble) | 1.24.2-1ubuntu1.7 | [libgstreamer-plugins-good1.0-0 1.24.2-1ubuntu1.7](https://patchblox.com/security/data/fix/linux/ubuntu-noble-libgstreamer-plugins-good1.0-0-1.24.2-1ubuntu1.7.md) | Aug 20, 2026 |
| Linux | mingw-gstreamer1-plugins-base Fedora 43 | 1.26.11-2.fc43 | [FEDORA-2026-BCFA11CD3B](https://patchblox.com/security/data/fix/linux/fedora-2026-bcfa11cd3b.md) | Aug 25, 2026 |
| Linux | mingw-gstreamer1-plugins-good Fedora 43 | 1.26.11-3.fc43 | [FEDORA-2026-BCFA11CD3B](https://patchblox.com/security/data/fix/linux/fedora-2026-bcfa11cd3b.md) | Aug 25, 2026 |
| Linux | mingw32-gstreamer1-plugins-base Fedora 43 | 1.26.11-2.fc43 | [FEDORA-2026-BCFA11CD3B](https://patchblox.com/security/data/fix/linux/fedora-2026-bcfa11cd3b.md) | Aug 25, 2026 |
| Linux | mingw32-gstreamer1-plugins-base-debuginfo Fedora 43 | 1.26.11-2.fc43 | [FEDORA-2026-BCFA11CD3B](https://patchblox.com/security/data/fix/linux/fedora-2026-bcfa11cd3b.md) | Aug 25, 2026 |
| Linux | mingw32-gstreamer1-plugins-good Fedora 43 | 1.26.11-3.fc43 | [FEDORA-2026-BCFA11CD3B](https://patchblox.com/security/data/fix/linux/fedora-2026-bcfa11cd3b.md) | Aug 25, 2026 |
| Linux | mingw32-gstreamer1-plugins-good-debuginfo Fedora 43 | 1.26.11-3.fc43 | [FEDORA-2026-BCFA11CD3B](https://patchblox.com/security/data/fix/linux/fedora-2026-bcfa11cd3b.md) | Aug 25, 2026 |
| Linux | mingw64-gstreamer1-plugins-base Fedora 43 | 1.26.11-2.fc43 | [FEDORA-2026-BCFA11CD3B](https://patchblox.com/security/data/fix/linux/fedora-2026-bcfa11cd3b.md) | Aug 25, 2026 |
| Linux | mingw64-gstreamer1-plugins-base-debuginfo Fedora 43 | 1.26.11-2.fc43 | [FEDORA-2026-BCFA11CD3B](https://patchblox.com/security/data/fix/linux/fedora-2026-bcfa11cd3b.md) | Aug 25, 2026 |
| Linux | mingw64-gstreamer1-plugins-good Fedora 43 | 1.26.11-3.fc43 | [FEDORA-2026-BCFA11CD3B](https://patchblox.com/security/data/fix/linux/fedora-2026-bcfa11cd3b.md) | Aug 25, 2026 |
| Linux | mingw64-gstreamer1-plugins-good-debuginfo Fedora 43 | 1.26.11-3.fc43 | [FEDORA-2026-BCFA11CD3B](https://patchblox.com/security/data/fix/linux/fedora-2026-bcfa11cd3b.md) | Aug 25, 2026 |

---

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