Description
A use-after-free flaw was found in GStreamer core buffer value deserialization. When serialized buffer text contains an invalid character, an error path frees a mapped buffer before unmapping it. Applications that parse untrusted caps or structure data can reach a freed-buffer read and may crash. A network-facing GStreamer Data Protocol receiver can process such caps data without user interaction; further impact has not been established.
Published: 2026-11-10
Score: 7.5 High
EPSS: n/a
KEV: No
AI Analysis

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Remediation

Vendor Workaround

There is no complete mitigation for applications that continue to deserialize untrusted GStreamer caps or structure strings. Restrict access to network-facing GStreamer Data Protocol receivers to trusted peers, and avoid passing externally supplied strings to gst_caps_from_string() or gst_structure_from_string() until an update is available. These measures reduce exposure only where the application can control those input paths.

Tracking

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Advisories

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History

Tue, 10 Nov 2026 14:15:00 +0000

Type Values Removed Values Added
Description A use-after-free flaw was found in GStreamer core buffer value deserialization. When crafted serialized buffer data contains an invalid character, an error path frees a mapped buffer before unmapping it. An application that parses untrusted caps or structure data could crash; a network-facing GStreamer Data Protocol receiver can process such data without user interaction. Further impact has not been established. A use-after-free flaw was found in GStreamer core buffer value deserialization. When serialized buffer text contains an invalid character, an error path frees a mapped buffer before unmapping it. Applications that parse untrusted caps or structure data can reach a freed-buffer read and may crash. A network-facing GStreamer Data Protocol receiver can process such caps data without user interaction; further impact has not been established.

Tue, 10 Nov 2026 10:45:00 +0000

Type Values Removed Values Added
Description A use-after-free flaw was found in GStreamer core buffer value deserialization. When crafted serialized buffer data contains an invalid character, an error path frees a mapped buffer before unmapping it. An application that parses untrusted caps or structure data could crash; a network-facing GStreamer Data Protocol receiver can process such data without user interaction. Further impact has not been established.
Title Gstreamer: gstreamer: use-after-free in gstreamer core buffer value deserialization
First Time appeared Redhat
Redhat enterprise Linux
Redhat rhel Els
Weaknesses CWE-416
CPEs cpe:/a:redhat:enterprise_linux:10
cpe:/a:redhat:enterprise_linux:8
cpe:/a:redhat:enterprise_linux:9
cpe:/o:redhat:rhel_els:7
Vendors & Products Redhat
Redhat enterprise Linux
Redhat rhel Els
References
Metrics cvssV3_1

{'score': 7.5, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H'}


Subscriptions

Redhat Enterprise Linux Rhel Els
cve-icon MITRE

Status: PUBLISHED

Assigner: redhat

Published:

Updated: 2026-11-10T14:08:47.658Z

Reserved: 2026-11-10T10:24:52.013Z

Link: CVE-2026-125704

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Awaiting Analysis

Published: 2026-11-10T11:16:43.580

Modified: 2026-11-10T14:17:29.847

Link: CVE-2026-125704

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

No data.

Weaknesses