RHEL 9 : gstreamer1-plugins-ugly-free (RHSA-2026:50691)

high Nessus Plugin ID 332229

Synopsis

The remote Red Hat host is missing one or more security updates for gstreamer1-plugins-ugly-free.

Description

The remote Redhat Enterprise Linux 9 host has a package installed that is affected by multiple vulnerabilities as referenced in the RHSA-2026:50691 advisory.

GStreamer is a streaming media framework, based on graphs of elements which operate on media data. This package contains plug-ins whose license is not fully compatible with LGPL.

Security Fix(es):

* gstreamer1-plugins-ugly-free: GStreamer: Out-of-bounds read in RealMedia demuxer audio stream header parser (CVE-2026-53703)

* gstreamer1-plugins-ugly-free: GStreamer: Out-of-bounds read in RealMedia demuxer FILEINFO metadata parser (CVE-2026-53704)

For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

Tenable has extracted the preceding description block directly from the Red Hat Enterprise Linux security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

Solution

Update the RHEL gstreamer1-plugins-ugly-free package based on the guidance in RHSA-2026:50691.

Plugin Details

Severity: High

ID: 332229

File Name: redhat-RHSA-2026-50691.nasl

Version: 1.1

Type: Local

Agent: unix

Family: Red Hat Local Security Checks

Published: 8/5/2026

Updated: 8/5/2026

Supported Sensors: Agentless Assessment, Continuous Assessment, Frictionless Assessment Agent, Frictionless Assessment AWS, Frictionless Assessment Azure, Nessus Agent, Tenable Cloud Security, Tenable Self-Hosted Container Security, Nessus

Risk Information

VPR

Risk Factor: Low

Score: 3.5

Percentile: 51.98

Vendor

Vendor Severity: Moderate

CVSS v2

Risk Factor: High

Base Score: 8.5

Temporal Score: 6.3

Vector: CVSS2#AV:N/AC:L/Au:N/C:P/I:N/A:C

CVSS Score Source: CVE-2026-53704

CVSS v3

Risk Factor: High

Base Score: 7.1

Temporal Score: 6.2

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:H

Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C

Vulnerability Information

CPE: cpe:/o:redhat:rhel_eus:9.6, p-cpe:/a:redhat:enterprise_linux:gstreamer1-plugins-ugly-free

Required KB Items: Host/local_checks_enabled, Host/RedHat/release, Host/RedHat/rpm-list, Host/cpu

Exploit Ease: No known exploits are available

Patch Publication Date: 8/5/2026

Vulnerability Publication Date: 6/15/2026

Reference Information

CVE: CVE-2026-53703, CVE-2026-53704

CWE: 125

RHSA: 2026:50691

Detections

Analytics