RHEL 10 : glib-networking (RHSA-2026:99696)

high Nessus Plugin ID 379911

Synopsis

The remote Red Hat host is missing a security update for glib-networking.

Description

The remote Redhat Enterprise Linux 10 host has a package installed that is affected by a vulnerability as referenced in the RHSA-2026:99696 advisory.

The glib-networking packages provide modules that extend the networking support in Glib. In particular, the packages contain a libproxy-based implementation of the GProxyResolver class type and a gnutls-based implementation of the GTlsConnection class type.

Security Fix(es):

* glib-networking: Unbounded TLS 1.3 session ticket queue growth in glib-networking allows remote denial of service (CVE-2026-103963)

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 this issue but has instead relied only on the application's self-reported version number.

Solution

Update the RHEL glib-networking package based on the guidance in RHSA-2026:99696.

Plugin Details

Severity: High

ID: 379911

File Name: redhat-RHSA-2026-99696.nasl

Version: 1.1

Type: Local

Agent: unix

Family: Red Hat Local Security Checks

Published: 11/12/2026

Updated: 11/12/2026

Supported Sensors: Nessus Agent, Continuous Assessment, Nessus

Risk Information

VPR

Risk Factor: Low

Score: 3

Percentile: 23.77

Vendor

Vendor Severity: Important

CVSS v2

Risk Factor: High

Base Score: 7.8

Temporal Score: 5.8

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

CVSS Score Source: CVE-2026-103963

CVSS v3

Risk Factor: High

Base Score: 7.5

Temporal Score: 6.5

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

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

Vulnerability Information

CPE: cpe:/o:redhat:enterprise_linux:10.3, p-cpe:/a:redhat:enterprise_linux:glib-networking

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: 11/12/2026

Vulnerability Publication Date: 10/27/2026

Reference Information

CVE: CVE-2026-103963

CWE: 400

RHSA: 2026:99696

Detections

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