RHEL 9 : rhc (RHSA-2026:7315)

high Nessus Plugin ID 305800

Synopsis

The remote Red Hat host is missing a security update for rhc.

Description

The remote Redhat Enterprise Linux 9 host has packages installed that are affected by a vulnerability as referenced in the RHSA-2026:7315 advisory.

rhc is a client tool and daemon that connects the system to Red Hat hosted services enabling system and subscription management.

Security Fix(es):

* net/url: Incorrect parsing of IPv6 host literals in net/url (CVE-2026-25679)

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 rhc package based on the guidance in RHSA-2026:7315.

See Also

https://access.redhat.com/security/updates/classification/#important

https://bugzilla.redhat.com/show_bug.cgi?id=2445356

http://www.nessus.org/u?8d050119

https://access.redhat.com/errata/RHSA-2026:7315

Plugin Details

Severity: High

ID: 305800

File Name: redhat-RHSA-2026-7315.nasl

Version: 1.1

Type: Local

Agent: unix

Published: 4/9/2026

Updated: 4/9/2026

Supported Sensors: Nessus Agent, Continuous Assessment, Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 5.1

Vendor

Vendor Severity: Important

CVSS v2

Risk Factor: Low

Base Score: 2.1

Temporal Score: 1.6

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

CVSS Score Source: CVE-2026-25679

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: p-cpe:/a:redhat:enterprise_linux:rhc, cpe:/o:redhat:enterprise_linux:9, p-cpe:/a:redhat:enterprise_linux:rhc-devel

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: 4/9/2026

Vulnerability Publication Date: 3/5/2026

Reference Information

CVE: CVE-2026-25679

CWE: 1286

RHSA: 2026:7315