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CVE-2026-46471

MEDIUM 5.5

Published 2026-10-16 · Last modified 2026-10-19

An issue was discovered in GStreamer gst-plugins-good before 1.28.2. While parsing an MP4 file, the isomp4 plugin's qtdemux_parse_uuid function may read past the end of a heap-allocated buffer, allowing an attacker to disclose heap memory contents.

NO EXPLOITATION SIGNALS

No known exploitation, public exploit, or elevated probability at this time. Track for changes.

Exploitation likelihood

0.2%chance of exploitation in 30 days · 8th percentile

○ In CISA KEV ○ Catalogued PoC

Impact if exploited

5.5CVSS 3.1 · MEDIUM

  • ConfidentialityHigh
  • IntegrityNone
  • AvailabilityNone

What an attacker needs

  • ⚠Access: Requires local access to the host
  • ✓Privileges: No account or privileges required
  • ⚠User interaction: A user must take an action (click / open a file)
  • ✓Complexity: No special conditions — reliably repeatable

✓ lowers the bar for an attacker · ⚠ raises it

Proof of concept

No public PoC is currently catalogued.

Search for new PoCs

Search GitHub now — results may be empty or unverified.

Tracked sources are checked daily for recent CVEs, including PoCs published after the original disclosure. A later release appears after a tracked source lists it and a refresh succeeds.

Data snapshot:

Affected

CPE data not yet published (analysis pending).

Weakness (CWE)

  • CWE-126: Buffer Over-read

CVSS vector

CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N

References and research data (JSON)

Vendor product assessments

  • gstreamer1-plugins-good as a component of Red Hat Enterprise Linux 10 · known affected

    Vendor assessment for this product only.

    pkg:rpm/redhat/gstreamer1-plugins-good

    • workaround: If multimedia playback and processing are not required, remove the package containing the affected plugin: # dnf remove gstreamer1-plugins-good Caveat: Removing this package may prompt the removal of dependent desktop components or graphical media applications, potentially impacting the GNOME desktop environment. Verify package dependencies before proceeding. Headless server environments managed via terminal remain fully functional. Additionally, apply operational controls by avoiding opening or processing untrusted MP4 files in applications that utilize the GStreamer framework.
    • none available: Fix deferred
    Red Hat · CVE-2026-46471 · Updated 2026-10-19T18:42:58+00:00
  • gstreamer1-plugins-good-gtk as a component of Red Hat Enterprise Linux 10 · known affected

    Vendor assessment for this product only.

    pkg:rpm/redhat/gstreamer1-plugins-good-gtk

    • workaround: If multimedia playback and processing are not required, remove the package containing the affected plugin: # dnf remove gstreamer1-plugins-good Caveat: Removing this package may prompt the removal of dependent desktop components or graphical media applications, potentially impacting the GNOME desktop environment. Verify package dependencies before proceeding. Headless server environments managed via terminal remain fully functional. Additionally, apply operational controls by avoiding opening or processing untrusted MP4 files in applications that utilize the GStreamer framework.
    • none available: Fix deferred
    Red Hat · CVE-2026-46471 · Updated 2026-10-19T18:42:58+00:00
  • gstreamer1-plugins-good.src as a component of Red Hat Enterprise Linux 10 · known affected

    Vendor assessment for this product only.

    pkg:rpm/redhat/gstreamer1-plugins-good?arch=src

    • workaround: If multimedia playback and processing are not required, remove the package containing the affected plugin: # dnf remove gstreamer1-plugins-good Caveat: Removing this package may prompt the removal of dependent desktop components or graphical media applications, potentially impacting the GNOME desktop environment. Verify package dependencies before proceeding. Headless server environments managed via terminal remain fully functional. Additionally, apply operational controls by avoiding opening or processing untrusted MP4 files in applications that utilize the GStreamer framework.
    • none available: Fix deferred
    Red Hat · CVE-2026-46471 · Updated 2026-10-19T18:42:58+00:00
  • gstreamer1-plugins-good as a component of Red Hat Enterprise Linux 7 · known affected

    Vendor assessment for this product only.

    pkg:rpm/redhat/gstreamer1-plugins-good

    • workaround: If multimedia playback and processing are not required, remove the package containing the affected plugin: # dnf remove gstreamer1-plugins-good Caveat: Removing this package may prompt the removal of dependent desktop components or graphical media applications, potentially impacting the GNOME desktop environment. Verify package dependencies before proceeding. Headless server environments managed via terminal remain fully functional. Additionally, apply operational controls by avoiding opening or processing untrusted MP4 files in applications that utilize the GStreamer framework.
    • none available: Fix deferred
    Red Hat · CVE-2026-46471 · Updated 2026-10-19T18:42:58+00:00
  • gstreamer1-plugins-good.src as a component of Red Hat Enterprise Linux 7 · known affected

    Vendor assessment for this product only.

    pkg:rpm/redhat/gstreamer1-plugins-good?arch=src

    • workaround: If multimedia playback and processing are not required, remove the package containing the affected plugin: # dnf remove gstreamer1-plugins-good Caveat: Removing this package may prompt the removal of dependent desktop components or graphical media applications, potentially impacting the GNOME desktop environment. Verify package dependencies before proceeding. Headless server environments managed via terminal remain fully functional. Additionally, apply operational controls by avoiding opening or processing untrusted MP4 files in applications that utilize the GStreamer framework.
    • none available: Fix deferred
    Red Hat · CVE-2026-46471 · Updated 2026-10-19T18:42:58+00:00
  • gstreamer1-plugins-good as a component of Red Hat Enterprise Linux 8 · known affected

    Vendor assessment for this product only.

    pkg:rpm/redhat/gstreamer1-plugins-good

    • workaround: If multimedia playback and processing are not required, remove the package containing the affected plugin: # dnf remove gstreamer1-plugins-good Caveat: Removing this package may prompt the removal of dependent desktop components or graphical media applications, potentially impacting the GNOME desktop environment. Verify package dependencies before proceeding. Headless server environments managed via terminal remain fully functional. Additionally, apply operational controls by avoiding opening or processing untrusted MP4 files in applications that utilize the GStreamer framework.
    • none available: Fix deferred
    Red Hat · CVE-2026-46471 · Updated 2026-10-19T18:42:58+00:00
  • gstreamer1-plugins-good-gtk as a component of Red Hat Enterprise Linux 8 · known affected

    Vendor assessment for this product only.

    pkg:rpm/redhat/gstreamer1-plugins-good-gtk

    • workaround: If multimedia playback and processing are not required, remove the package containing the affected plugin: # dnf remove gstreamer1-plugins-good Caveat: Removing this package may prompt the removal of dependent desktop components or graphical media applications, potentially impacting the GNOME desktop environment. Verify package dependencies before proceeding. Headless server environments managed via terminal remain fully functional. Additionally, apply operational controls by avoiding opening or processing untrusted MP4 files in applications that utilize the GStreamer framework.
    • none available: Fix deferred
    Red Hat · CVE-2026-46471 · Updated 2026-10-19T18:42:58+00:00
  • gstreamer1-plugins-good.src as a component of Red Hat Enterprise Linux 8 · known affected

    Vendor assessment for this product only.

    pkg:rpm/redhat/gstreamer1-plugins-good?arch=src

    • workaround: If multimedia playback and processing are not required, remove the package containing the affected plugin: # dnf remove gstreamer1-plugins-good Caveat: Removing this package may prompt the removal of dependent desktop components or graphical media applications, potentially impacting the GNOME desktop environment. Verify package dependencies before proceeding. Headless server environments managed via terminal remain fully functional. Additionally, apply operational controls by avoiding opening or processing untrusted MP4 files in applications that utilize the GStreamer framework.
    • none available: Fix deferred
    Red Hat · CVE-2026-46471 · Updated 2026-10-19T18:42:58+00:00
  • gstreamer1-plugins-good as a component of Red Hat Enterprise Linux 9 · known affected

    Vendor assessment for this product only.

    pkg:rpm/redhat/gstreamer1-plugins-good

    • workaround: If multimedia playback and processing are not required, remove the package containing the affected plugin: # dnf remove gstreamer1-plugins-good Caveat: Removing this package may prompt the removal of dependent desktop components or graphical media applications, potentially impacting the GNOME desktop environment. Verify package dependencies before proceeding. Headless server environments managed via terminal remain fully functional. Additionally, apply operational controls by avoiding opening or processing untrusted MP4 files in applications that utilize the GStreamer framework.
    • none available: Fix deferred
    Red Hat · CVE-2026-46471 · Updated 2026-10-19T18:42:58+00:00
  • gstreamer1-plugins-good-gtk as a component of Red Hat Enterprise Linux 9 · known affected

    Vendor assessment for this product only.

    pkg:rpm/redhat/gstreamer1-plugins-good-gtk

    • workaround: If multimedia playback and processing are not required, remove the package containing the affected plugin: # dnf remove gstreamer1-plugins-good Caveat: Removing this package may prompt the removal of dependent desktop components or graphical media applications, potentially impacting the GNOME desktop environment. Verify package dependencies before proceeding. Headless server environments managed via terminal remain fully functional. Additionally, apply operational controls by avoiding opening or processing untrusted MP4 files in applications that utilize the GStreamer framework.
    • none available: Fix deferred
    Red Hat · CVE-2026-46471 · Updated 2026-10-19T18:42:58+00:00
  • gstreamer1-plugins-good.src as a component of Red Hat Enterprise Linux 9 · known affected

    Vendor assessment for this product only.

    pkg:rpm/redhat/gstreamer1-plugins-good?arch=src

    • workaround: If multimedia playback and processing are not required, remove the package containing the affected plugin: # dnf remove gstreamer1-plugins-good Caveat: Removing this package may prompt the removal of dependent desktop components or graphical media applications, potentially impacting the GNOME desktop environment. Verify package dependencies before proceeding. Headless server environments managed via terminal remain fully functional. Additionally, apply operational controls by avoiding opening or processing untrusted MP4 files in applications that utilize the GStreamer framework.
    • none available: Fix deferred
    Red Hat · CVE-2026-46471 · Updated 2026-10-19T18:42:58+00:00

All CVSS metrics

  • MEDIUM 5.5 v3.1 · ADP Primary
    CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N
  • MEDIUM 5.5 v3.1 · NVD Secondary
    CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N

References

Exploit-tagged references (not proof of a PoC)

Advisories

Technical & other

Sources: NVD · CVE.org · EPSS