# CVE-2026-73433: gst-plugins-good1.0: A flaw was found in GStreamer gst-plugins-good (avidemux)

CVE-2026-73433 is fixed in 12 products on 1 platform, first by gstreamer1.0-gtk3 1.14.5-0ubuntu1~18.04.3+esm4, released August 12, 2026. It is not reported as exploited. Patch Radar priority: High.

- Web page: https://patchblox.com/security/cve/CVE-2026-73433
- Priority: High
- CVSS: 7.5 (medium)
- EPSS: 0.0015
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: Aug 5, 2026

## Description

A flaw was found in GStreamer gst-plugins-good (avidemux). When parsing FUJIFILM metadata in an AVI strd chunk, gst_avi_demux_parse_strd() decrements a remaining-length counter by fixed offsets (98 and 10 bytes) without verifying sufficient data remains. For crafted strd payloads of exactly 106 or 107 bytes, the counter underflows to a very large unsigned value, causing subsequent null-terminated string scanning to read far beyond the allocated heap buffer. Date-format normalization may also write beyond the buffer end. Confirmed impacts include heap out-of-bounds read, out-of-bounds write, heap information disclosure (adjacent data appearing in parsed metadata), and application crash/denial of service. The avidemux element is auto-plugged by playbin, decodebin, and gst-discoverer, so opening or previewing a crafted AVI is sufficient to trigger the issue. Fixed upstream in gst-plugins-good 1.28.6 (GStreamer-SA-2026-0072).

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Linux | gst-plugins-good1.0 Debian 12.15 (bookworm) | 1.22.0-5+deb12u4 | [DEBIAN-CVE-2026-73433](https://patchblox.com/security/data/fix/linux/debian-cve-2026-73433.md) | Aug 13, 2026 |
| Linux | gst-plugins-good1.0 Debian 14 | 1.28.6-1 | [DEBIAN-CVE-2026-73433](https://patchblox.com/security/data/fix/linux/debian-cve-2026-73433.md) | Aug 13, 2026 |
| Linux | gstreamer1-plugins-good RHEL 10 | 1.24.11-1.el10_0.4 | [RHSA-2026:65959](https://patchblox.com/security/data/fix/linux/rhsa-2026-65959.md) | Aug 13, 2026 |
| Linux | gstreamer1-plugins-good RHEL 8 | 0:1.16.1-7.el8_10.3 | [RHSA-2026:56966](https://patchblox.com/security/data/fix/linux/rhsa-2026-56966.md) | Aug 20, 2026 |
| Linux | gstreamer1-plugins-good RHEL 9 | 0:1.22.12-7.el9_8.4 | [RHSA-2026:55436](https://patchblox.com/security/data/fix/linux/rhsa-2026-55436.md) | Aug 19, 2026 |
| Linux | gstreamer1-plugins-good almalinux 10 | 1.26.7-2.el10_2.5 | [ALSA-2026:55434](https://patchblox.com/security/data/fix/linux/alsa-2026-55434.md) | Aug 17, 2026 |
| Linux | gstreamer1-plugins-good almalinux 8 | 1.16.1-7.el8_10.3 | [ALSA-2026:56966](https://patchblox.com/security/data/fix/linux/alsa-2026-56966.md) | Aug 19, 2026 |
| Linux | gstreamer1-plugins-good almalinux 9 | 1.22.12-7.el9_8.4 | [ALSA-2026:55436](https://patchblox.com/security/data/fix/linux/alsa-2026-55436.md) | Aug 17, 2026 |
| Linux | gstreamer1-plugins-good amzn 2023 | 1.24.10-1.amzn2023.0.10 | [ALAS2023-2026-3276](https://patchblox.com/security/data/fix/linux/alas2023-2026-3276.md) | Nov 7, 2026 |
| Linux | gstreamer1-plugins-good ol 10 | 0:1.26.7-2.el10_2.5 | [ELSA-2026-55434](https://patchblox.com/security/data/fix/linux/elsa-2026-55434.md) | Aug 17, 2026 |
| Linux | gstreamer1-plugins-good ol 8 | 0:1.16.1-7.el8_10.3 | [ELSA-2026-56966](https://patchblox.com/security/data/fix/linux/elsa-2026-56966.md) | Aug 19, 2026 |
| Linux | gstreamer1-plugins-good ol 9 | 0:1.22.12-7.el9_8.4 | [ELSA-2026-55436](https://patchblox.com/security/data/fix/linux/elsa-2026-55436.md) | Aug 17, 2026 |
| Linux | gstreamer1-plugins-good rocky 10 | 0:1.26.7-2.el10_2.5 | [RLSA-2026:55434](https://patchblox.com/security/data/fix/linux/rlsa-2026-55434.md) | Aug 17, 2026 |
| Linux | gstreamer1-plugins-good rocky 8 | 0:1.16.1-7.el8_10.3 | [RLSA-2026:56966](https://patchblox.com/security/data/fix/linux/rlsa-2026-56966.md) | Aug 20, 2026 |
| Linux | gstreamer1-plugins-good rocky 9 | 0:1.22.12-7.el9_8.4 | [RLSA-2026:55436](https://patchblox.com/security/data/fix/linux/rlsa-2026-55436.md) | Aug 17, 2026 |
| Linux | gstreamer1-plugins-good-debuginfo amzn 2023 | 1.24.10-1.amzn2023.0.10 | [ALAS2023-2026-3276](https://patchblox.com/security/data/fix/linux/alas2023-2026-3276.md) | Nov 7, 2026 |
| Linux | gstreamer1-plugins-good-debugsource amzn 2023 | 1.24.10-1.amzn2023.0.10 | [ALAS2023-2026-3276](https://patchblox.com/security/data/fix/linux/alas2023-2026-3276.md) | Nov 7, 2026 |
| Linux | gstreamer1-plugins-good-gtk RHEL 8 | 0:1.16.1-7.el8_10.3 | [RHSA-2026:56966](https://patchblox.com/security/data/fix/linux/rhsa-2026-56966.md) | Aug 20, 2026 |
| Linux | gstreamer1-plugins-good-gtk RHEL 9 | 0:1.22.12-7.el9_8.4 | [RHSA-2026:55436](https://patchblox.com/security/data/fix/linux/rhsa-2026-55436.md) | Aug 19, 2026 |
| Linux | gstreamer1-plugins-good-gtk almalinux 10 | 1.26.7-2.el10_2.5 | [ALSA-2026:55434](https://patchblox.com/security/data/fix/linux/alsa-2026-55434.md) | Aug 17, 2026 |
| Linux | gstreamer1-plugins-good-gtk almalinux 8 | 1.16.1-7.el8_10.3 | [ALSA-2026:56966](https://patchblox.com/security/data/fix/linux/alsa-2026-56966.md) | Aug 19, 2026 |
| Linux | gstreamer1-plugins-good-gtk almalinux 9 | 1.22.12-7.el9_8.4 | [ALSA-2026:55436](https://patchblox.com/security/data/fix/linux/alsa-2026-55436.md) | Aug 17, 2026 |
| Linux | gstreamer1-plugins-good-gtk amzn 2023 | 1.24.10-1.amzn2023.0.10 | [ALAS2023-2026-3276](https://patchblox.com/security/data/fix/linux/alas2023-2026-3276.md) | Nov 7, 2026 |
| Linux | gstreamer1-plugins-good-gtk ol 10 | 0:1.26.7-2.el10_2.5 | [ELSA-2026-55434](https://patchblox.com/security/data/fix/linux/elsa-2026-55434.md) | Aug 17, 2026 |
| Linux | gstreamer1-plugins-good-gtk ol 8 | 0:1.16.1-7.el8_10.3 | [ELSA-2026-56966](https://patchblox.com/security/data/fix/linux/elsa-2026-56966.md) | Aug 19, 2026 |
| Linux | gstreamer1-plugins-good-gtk ol 9 | 0:1.22.12-7.el9_8.4 | [ELSA-2026-55436](https://patchblox.com/security/data/fix/linux/elsa-2026-55436.md) | Aug 17, 2026 |
| Linux | gstreamer1-plugins-good-gtk-debuginfo amzn 2023 | 1.24.10-1.amzn2023.0.10 | [ALAS2023-2026-3276](https://patchblox.com/security/data/fix/linux/alas2023-2026-3276.md) | Nov 7, 2026 |
| Linux | gstreamer1.0-gtk3 Ubuntu 18.04.6 LTS (bionic) | 1.14.5-0ubuntu1~18.04.3+esm4 | [gstreamer1.0-gtk3 1.14.5-0ubuntu1~18.04.3+esm4](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-gstreamer1.0-gtk3-1.14.5-0ubuntu1-18.04.3-esm4.md) | Aug 12, 2026 |
| Linux | gstreamer1.0-gtk3 Ubuntu 20.04 LTS (focal) | 1.16.3-0ubuntu1.3+esm4 | [gstreamer1.0-gtk3 1.16.3-0ubuntu1.3+esm4](https://patchblox.com/security/data/fix/linux/ubuntu-focal-gstreamer1.0-gtk3-1.16.3-0ubuntu1.3-esm4.md) | Oct 2, 2026 |
| Linux | gstreamer1.0-gtk3 Ubuntu 22.04.1 LTS (jammy) | 1.20.3-0ubuntu1.10 | [gstreamer1.0-gtk3 1.20.3-0ubuntu1.10](https://patchblox.com/security/data/fix/linux/ubuntu-jammy-gstreamer1.0-gtk3-1.20.3-0ubuntu1.10.md) | Oct 2, 2026 |
| Linux | gstreamer1.0-gtk3 Ubuntu 24.04.5 LTS (noble) | 1.24.2-1ubuntu1.8 | [gstreamer1.0-gtk3 1.24.2-1ubuntu1.8](https://patchblox.com/security/data/fix/linux/ubuntu-noble-gstreamer1.0-gtk3-1.24.2-1ubuntu1.8.md) | Oct 2, 2026 |
| Linux | gstreamer1.0-gtk3 Ubuntu 26.04.1 LTS (resolute) | 1.28.2-2ubuntu0.4 | [gstreamer1.0-gtk3 1.28.2-2ubuntu0.4](https://patchblox.com/security/data/fix/linux/ubuntu-resolute-gstreamer1.0-gtk3-1.28.2-2ubuntu0.4.md) | Sep 10, 2026 |
| Linux | gstreamer1.0-plugins-good Ubuntu 18.04.6 LTS (bionic) | 1.14.5-0ubuntu1~18.04.3+esm4 | [gstreamer1.0-plugins-good 1.14.5-0ubuntu1~18.04.3+esm4](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-gstreamer1.0-plugins-good-1.14.5-0ubuntu1-18.04.3-esm4.md) | Aug 12, 2026 |
| Linux | gstreamer1.0-plugins-good Ubuntu 20.04 LTS (focal) | 1.16.3-0ubuntu1.3+esm4 | [gstreamer1.0-plugins-good 1.16.3-0ubuntu1.3+esm4](https://patchblox.com/security/data/fix/linux/ubuntu-focal-gstreamer1.0-plugins-good-1.16.3-0ubuntu1.3-esm4.md) | Oct 2, 2026 |
| Linux | gstreamer1.0-plugins-good Ubuntu 22.04.1 LTS (jammy) | 1.20.3-0ubuntu1.10 | [gstreamer1.0-plugins-good 1.20.3-0ubuntu1.10](https://patchblox.com/security/data/fix/linux/ubuntu-jammy-gstreamer1.0-plugins-good-1.20.3-0ubuntu1.10.md) | Oct 2, 2026 |
| Linux | gstreamer1.0-plugins-good Ubuntu 24.04.5 LTS (noble) | 1.24.2-1ubuntu1.8 | [gstreamer1.0-plugins-good 1.24.2-1ubuntu1.8](https://patchblox.com/security/data/fix/linux/ubuntu-noble-gstreamer1.0-plugins-good-1.24.2-1ubuntu1.8.md) | Oct 2, 2026 |
| Linux | gstreamer1.0-plugins-good Ubuntu 26.04.1 LTS (resolute) | 1.28.2-2ubuntu0.4 | [gstreamer1.0-plugins-good 1.28.2-2ubuntu0.4](https://patchblox.com/security/data/fix/linux/ubuntu-resolute-gstreamer1.0-plugins-good-1.28.2-2ubuntu0.4.md) | Sep 10, 2026 |
| Linux | gstreamer1.0-pulseaudio Ubuntu 18.04.6 LTS (bionic) | 1.14.5-0ubuntu1~18.04.3+esm4 | [gstreamer1.0-pulseaudio 1.14.5-0ubuntu1~18.04.3+esm4](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-gstreamer1.0-pulseaudio-1.14.5-0ubuntu1-18.04.3-esm4.md) | Aug 12, 2026 |
| Linux | gstreamer1.0-pulseaudio Ubuntu 20.04 LTS (focal) | 1.16.3-0ubuntu1.3+esm4 | [gstreamer1.0-pulseaudio 1.16.3-0ubuntu1.3+esm4](https://patchblox.com/security/data/fix/linux/ubuntu-focal-gstreamer1.0-pulseaudio-1.16.3-0ubuntu1.3-esm4.md) | Oct 2, 2026 |
| Linux | gstreamer1.0-pulseaudio Ubuntu 22.04.1 LTS (jammy) | 1.20.3-0ubuntu1.10 | [gstreamer1.0-pulseaudio 1.20.3-0ubuntu1.10](https://patchblox.com/security/data/fix/linux/ubuntu-jammy-gstreamer1.0-pulseaudio-1.20.3-0ubuntu1.10.md) | Oct 2, 2026 |
| Linux | gstreamer1.0-pulseaudio Ubuntu 24.04.5 LTS (noble) | 1.24.2-1ubuntu1.8 | [gstreamer1.0-pulseaudio 1.24.2-1ubuntu1.8](https://patchblox.com/security/data/fix/linux/ubuntu-noble-gstreamer1.0-pulseaudio-1.24.2-1ubuntu1.8.md) | Oct 2, 2026 |
| Linux | gstreamer1.0-pulseaudio Ubuntu 26.04.1 LTS (resolute) | 1.28.2-2ubuntu0.4 | [gstreamer1.0-pulseaudio 1.28.2-2ubuntu0.4](https://patchblox.com/security/data/fix/linux/ubuntu-resolute-gstreamer1.0-pulseaudio-1.28.2-2ubuntu0.4.md) | Sep 10, 2026 |
| Linux | gstreamer1.0-qt5 Ubuntu 18.04.6 LTS (bionic) | 1.14.5-0ubuntu1~18.04.3+esm4 | [gstreamer1.0-qt5 1.14.5-0ubuntu1~18.04.3+esm4](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-gstreamer1.0-qt5-1.14.5-0ubuntu1-18.04.3-esm4.md) | Aug 12, 2026 |
| Linux | gstreamer1.0-qt5 Ubuntu 20.04 LTS (focal) | 1.16.3-0ubuntu1.3+esm4 | [gstreamer1.0-qt5 1.16.3-0ubuntu1.3+esm4](https://patchblox.com/security/data/fix/linux/ubuntu-focal-gstreamer1.0-qt5-1.16.3-0ubuntu1.3-esm4.md) | Oct 2, 2026 |
| Linux | gstreamer1.0-qt5 Ubuntu 22.04.1 LTS (jammy) | 1.20.3-0ubuntu1.10 | [gstreamer1.0-qt5 1.20.3-0ubuntu1.10](https://patchblox.com/security/data/fix/linux/ubuntu-jammy-gstreamer1.0-qt5-1.20.3-0ubuntu1.10.md) | Oct 2, 2026 |
| Linux | gstreamer1.0-qt5 Ubuntu 24.04.5 LTS (noble) | 1.24.2-1ubuntu1.8 | [gstreamer1.0-qt5 1.24.2-1ubuntu1.8](https://patchblox.com/security/data/fix/linux/ubuntu-noble-gstreamer1.0-qt5-1.24.2-1ubuntu1.8.md) | Oct 2, 2026 |
| Linux | gstreamer1.0-qt5 Ubuntu 26.04.1 LTS (resolute) | 1.28.2-2ubuntu0.4 | [gstreamer1.0-qt5 1.28.2-2ubuntu0.4](https://patchblox.com/security/data/fix/linux/ubuntu-resolute-gstreamer1.0-qt5-1.28.2-2ubuntu0.4.md) | Sep 10, 2026 |
| Linux | gstreamer1.0-qt6 Ubuntu 24.04.5 LTS (noble) | 1.24.2-1ubuntu1.8 | [gstreamer1.0-qt6 1.24.2-1ubuntu1.8](https://patchblox.com/security/data/fix/linux/ubuntu-noble-gstreamer1.0-qt6-1.24.2-1ubuntu1.8.md) | Oct 2, 2026 |
| Linux | gstreamer1.0-qt6 Ubuntu 26.04.1 LTS (resolute) | 1.28.2-2ubuntu0.4 | [gstreamer1.0-qt6 1.28.2-2ubuntu0.4](https://patchblox.com/security/data/fix/linux/ubuntu-resolute-gstreamer1.0-qt6-1.28.2-2ubuntu0.4.md) | Sep 10, 2026 |
| Linux | libgstreamer-plugins-good1.0-0 Ubuntu 18.04.6 LTS (bionic) | 1.14.5-0ubuntu1~18.04.3+esm4 | [libgstreamer-plugins-good1.0-0 1.14.5-0ubuntu1~18.04.3+esm4](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-libgstreamer-plugins-good1.0-0-1.14.5-0ubuntu1-18.04.3-esm4.md) | Aug 12, 2026 |
| Linux | libgstreamer-plugins-good1.0-0 Ubuntu 20.04 LTS (focal) | 1.16.3-0ubuntu1.3+esm4 | [libgstreamer-plugins-good1.0-0 1.16.3-0ubuntu1.3+esm4](https://patchblox.com/security/data/fix/linux/ubuntu-focal-libgstreamer-plugins-good1.0-0-1.16.3-0ubuntu1.3-esm4.md) | Oct 2, 2026 |
| Linux | libgstreamer-plugins-good1.0-0 Ubuntu 22.04.1 LTS (jammy) | 1.20.3-0ubuntu1.10 | [libgstreamer-plugins-good1.0-0 1.20.3-0ubuntu1.10](https://patchblox.com/security/data/fix/linux/ubuntu-jammy-libgstreamer-plugins-good1.0-0-1.20.3-0ubuntu1.10.md) | Oct 2, 2026 |
| Linux | libgstreamer-plugins-good1.0-0 Ubuntu 24.04.5 LTS (noble) | 1.24.2-1ubuntu1.8 | [libgstreamer-plugins-good1.0-0 1.24.2-1ubuntu1.8](https://patchblox.com/security/data/fix/linux/ubuntu-noble-libgstreamer-plugins-good1.0-0-1.24.2-1ubuntu1.8.md) | Oct 2, 2026 |

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