Description
A flaw was found in GStreamer's MXF demuxer plugin (gst-plugins-bad). When processing a specially crafted MXF media file, the demuxer indexes its internal delta-entry and slice-offset tables using values from the file without validating that they are within the bounds of the allocated arrays. A local attacker who tricks a user into opening a malicious MXF file can cause the application to crash (denial of service) and may be able to read limited amounts of heap memory adjacent to the affected arrays.
Published: 2026-11-09
Score: 6.1 Medium
EPSS: n/a
KEV: No
Impact: n/a
Action: n/a
AI Analysis

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Remediation

Vendor Workaround

Mitigation is to avoid parsing untrusted MXF content with the GStreamer MXF demuxer until a fixed package is available, or to disable the mxfdemux plugin where the application allows plugin selection.

Tracking

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Advisories

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History

Mon, 09 Nov 2026 13:15:00 +0000

Type Values Removed Values Added
Description A flaw was found in GStreamer's MXF demuxer plugin (gst-plugins-bad). When processing a specially crafted MXF media file, the demuxer indexes its internal delta-entry and slice-offset tables using values from the file without validating that they are within the bounds of the allocated arrays. A local attacker who tricks a user into opening a malicious MXF file can cause the application to crash (denial of service) and may be able to read limited amounts of heap memory adjacent to the affected arrays.
Title Gstreamer1-plugins-bad-free: gstreamer1-plugins-bad-free: out-of-bounds read in mxfdemux via unchecked delta_id and slice index
First Time appeared Redhat
Redhat enterprise Linux
Redhat rhel Els
Weaknesses CWE-125
CPEs cpe:/a:redhat:enterprise_linux:10
cpe:/a:redhat:enterprise_linux:8
cpe:/a:redhat:enterprise_linux:9
cpe:/o:redhat:rhel_els:6
cpe:/o:redhat:rhel_els:7
Vendors & Products Redhat
Redhat enterprise Linux
Redhat rhel Els
References
Metrics cvssV3_1

{'score': 6.1, 'vector': 'CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:H'}


Subscriptions

Redhat Enterprise Linux Rhel Els
cve-icon MITRE

Status: PUBLISHED

Assigner: redhat

Published:

Updated: 2026-11-09T13:00:59.610Z

Reserved: 2026-11-03T16:17:34.895Z

Link: CVE-2026-121601

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Awaiting Analysis

Published: 2026-11-09T13:17:06.910

Modified: 2026-11-09T13:17:07.027

Link: CVE-2026-121601

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-11-09T15:00:17Z

Weaknesses