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CVE-2026-5056 · cross-distro fix matrix

CVE-2026-5056: It was discovered that GStreamer Good Plugins incorrectly handled certain

Affects 3 Linux releases across 10 (distro × package) combinations. First disclosed: 2026-05-20.

Fix per ecosystem

Each block below is a distro release where CVE-2026-5056 has a known fix. Run the listed command on that distro to remediate.

Ubuntu questing

Source: Ubuntu USN

  • gst-plugins-good1.0→ fixed in1.26.5-1ubuntu2.2USN-8285-1
    sudo apt-get install --only-upgrade -y gst-plugins-good1.0
  • gstreamer1.0-gtk3→ fixed in1.26.5-1ubuntu2.2USN-8285-1
    sudo apt-get install --only-upgrade -y gstreamer1.0-gtk3
  • gstreamer1.0-plugins-good→ fixed in1.26.5-1ubuntu2.2USN-8285-1
    sudo apt-get install --only-upgrade -y gstreamer1.0-plugins-good
  • gstreamer1.0-pulseaudio→ fixed in1.26.5-1ubuntu2.2USN-8285-1
    sudo apt-get install --only-upgrade -y gstreamer1.0-pulseaudio
  • gstreamer1.0-qt5→ fixed in1.26.5-1ubuntu2.2USN-8285-1
    sudo apt-get install --only-upgrade -y gstreamer1.0-qt5
  • gstreamer1.0-qt6→ fixed in1.26.5-1ubuntu2.2USN-8285-1
    sudo apt-get install --only-upgrade -y gstreamer1.0-qt6
  • libgstreamer-plugins-good1.0-0→ fixed in1.26.5-1ubuntu2.2USN-8285-1
    sudo apt-get install --only-upgrade -y libgstreamer-plugins-good1.0-0
  • libgstreamer-plugins-good1.0-dev→ fixed in1.26.5-1ubuntu2.2USN-8285-1
    sudo apt-get install --only-upgrade -y libgstreamer-plugins-good1.0-dev

Debian trixie

Source: Debian Security Tracker

  • gst-plugins-good1.0→ fixed in1.26.2-1+deb13u1urgency: not yet assigned
    sudo apt-get install --only-upgrade -y gst-plugins-good1.0

Alpine edge

Source: Alpine secdb

  • gst-plugins-good→ fixed in1.26.3-r0
    apk update && apk add --upgrade gst-plugins-good
Are YOU affected by CVE-2026-5056?

5-second check on your actual server. Reads /etc/os-release, uname -r, and the distro's package manager; matches against this same cross-source index live.

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