gst-plugins-bad1.0: A heap buffer overflow vulnerability was found in GStreamer's rfbsrc plugin
CVE-2026-59691 is fixed in 9 products on 1 platform, first by DEBIAN-CVE-2026-59691, released July 22, 2026. It is not reported as exploited. Patch Radar priority: High.
A heap buffer overflow vulnerability was found in GStreamer's rfbsrc plugin. When a client connects to a malicious RFB/VNC server that advertises a 16bpp framebuffer and sends Hextile-encoded updates, the Hextile background fill path writes 32-bit pixel values into a buffer allocated for 16-bit pixels. This type mismatch causes an out-of-bounds heap write that can lead to denial of service (process crash) and potential memory corruption.
Where it's fixed
| Product | Fixed in | Fix | Released |
|---|---|---|---|
| Linux | |||
| gst-plugins-bad1.0 · Debian 12.15 (bookworm) | 1.22.0-4+deb12u8 | DEBIAN-CVE-2026-59691 | Jul 22, 2026 |
| gst-plugins-bad1.0 · Debian 14 | 1.28.5-1 | DEBIAN-CVE-2026-59691 | Jul 22, 2026 |
| gstreamer1-plugin-openh264 · amzn 2023 | 1.24.10-1.amzn2023.0.8 | ALAS2023-2026-1994 | Aug 3, 2026 |
| gstreamer1-plugin-openh264-debuginfo · amzn 2023 | 1.24.10-1.amzn2023.0.8 | ALAS2023-2026-1994 | Aug 3, 2026 |
| gstreamer1-plugins-bad-free · RHEL 10 | 1.24.11-3.el10_0.6 | RHSA-2026:54659 | Jul 31, 2026 |
| gstreamer1-plugins-bad-free · RHEL 8 | 0:1.16.1-9.el8_10.1 | RHSA-2026:47731 | Jul 31, 2026 |
| gstreamer1-plugins-bad-free · RHEL 9 | 0:1.22.12-7.el9_8.3 | RHSA-2026:47179 | Aug 5, 2026 |
| gstreamer1-plugins-bad-free · almalinux 10 | 1.26.7-2.el10_2.6 | ALSA-2026:47180 | Jul 28, 2026 |
| gstreamer1-plugins-bad-free · almalinux 8 | 1.16.1-9.el8_10.1 | ALSA-2026:47731 | Jul 29, 2026 |
| gstreamer1-plugins-bad-free · almalinux 9 | 1.22.12-7.el9_8.3 | ALSA-2026:47179 | Jul 28, 2026 |
| gstreamer1-plugins-bad-free · amzn 2023 | 1.24.10-1.amzn2023.0.8 | ALAS2023-2026-1994 | Aug 3, 2026 |
| gstreamer1-plugins-bad-free · ol 10 | 0:1.26.7-2.el10_2.6 | ELSA-2026-47180 | Jul 28, 2026 |
| gstreamer1-plugins-bad-free · ol 8 | 0:1.16.1-9.0.1.el8_10.1 | ELSA-2026-47731 | Jul 29, 2026 |
| gstreamer1-plugins-bad-free · ol 9 | 0:1.22.12-7.el9_8.3 | ELSA-2026-47179 | Jul 29, 2026 |
| gstreamer1-plugins-bad-free · rocky 10 | 0:1.26.7-2.el10_2.6 | RLSA-2026:47180 | Jul 29, 2026 |
| gstreamer1-plugins-bad-free · rocky 8 | 0:1.16.1-9.el8_10.1 | RLSA-2026:47731 | Jul 30, 2026 |
| gstreamer1-plugins-bad-free · rocky 9 | 0:1.22.12-7.el9_8.3 | RLSA-2026:47179 | Aug 3, 2026 |
| gstreamer1-plugins-bad-free-debuginfo · amzn 2023 | 1.24.10-1.amzn2023.0.8 | ALAS2023-2026-1994 | Aug 3, 2026 |
| gstreamer1-plugins-bad-free-debugsource · amzn 2023 | 1.24.10-1.amzn2023.0.8 | ALAS2023-2026-1994 | Aug 3, 2026 |
| gstreamer1-plugins-bad-free-devel · RHEL 8 | 0:1.16.1-9.el8_10.1 | RHSA-2026:47731 | Jul 31, 2026 |
| gstreamer1-plugins-bad-free-devel · RHEL 9 | 0:1.22.12-7.el9_8.3 | RHSA-2026:47179 | Aug 5, 2026 |
| gstreamer1-plugins-bad-free-devel · almalinux 10 | 1.26.7-2.el10_2.6 | ALSA-2026:47180 | Jul 28, 2026 |
| gstreamer1-plugins-bad-free-devel · almalinux 8 | 1.16.1-9.el8_10.1 | ALSA-2026:47731 | Jul 29, 2026 |
| gstreamer1-plugins-bad-free-devel · almalinux 9 | 1.22.12-7.el9_8.3 | ALSA-2026:47179 | Jul 28, 2026 |
| gstreamer1-plugins-bad-free-devel · amzn 2023 | 1.24.10-1.amzn2023.0.8 | ALAS2023-2026-1994 | Aug 3, 2026 |
| gstreamer1-plugins-bad-free-devel · ol 10 | 0:1.26.7-2.el10_2.6 | ELSA-2026-47180 | Jul 28, 2026 |
| gstreamer1-plugins-bad-free-devel · ol 8 | 0:1.16.1-9.0.1.el8_10.1 | ELSA-2026-47731 | Jul 29, 2026 |
| gstreamer1-plugins-bad-free-devel · ol 9 | 0:1.22.12-7.el9_8.3 | ELSA-2026-47179 | Jul 29, 2026 |
| gstreamer1-plugins-bad-free-libs · RHEL 9 | 0:1.22.12-7.el9_8.3 | RHSA-2026:47179 | Aug 5, 2026 |
| gstreamer1-plugins-bad-free-libs · almalinux 10 | 1.26.7-2.el10_2.6 | ALSA-2026:47180 | Jul 28, 2026 |
| gstreamer1-plugins-bad-free-libs · almalinux 9 | 1.22.12-7.el9_8.3 | ALSA-2026:47179 | Jul 28, 2026 |
| gstreamer1-plugins-bad-free-libs · amzn 2023 | 1.24.10-1.amzn2023.0.8 | ALAS2023-2026-1994 | Aug 3, 2026 |
| gstreamer1-plugins-bad-free-libs · ol 10 | 0:1.26.7-2.el10_2.6 | ELSA-2026-47180 | Jul 28, 2026 |
| gstreamer1-plugins-bad-free-libs · ol 9 | 0:1.22.12-7.el9_8.3 | ELSA-2026-47179 | Jul 29, 2026 |
| gstreamer1-plugins-bad-free-libs-debuginfo · amzn 2023 | 1.24.10-1.amzn2023.0.8 | ALAS2023-2026-1994 | Aug 3, 2026 |
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