RHEL 10 : go-fdo-client (RHSA-2026:97386)

high Nessus Plugin ID 378210

Synopsis

The remote Red Hat host is missing one or more security updates for go-fdo-client.

Description

The remote Redhat Enterprise Linux 10 host has a package installed that is affected by multiple vulnerabilities as referenced in the RHSA-2026:97386 advisory.

go-fdo-client is the device-side implementation of FIDO Device Onboard specification in Go. It provides an FDO client that interacts with FDO manufacturer and owner servers to perform device on-boarding.

Security Fix(es):

* crypto/x509: Incorrect enforcement of email constraints in crypto/x509 (CVE-2026-27137)

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

* net: golang: Go net package: Denial of Service via long CNAME response in LookupCNAME (CVE-2026-33811)

* golang.org/x/net/idna: golang: net/http: golang.org/x/net/idna: Privilege escalation via incorrect Punycode label processing (CVE-2026-39821)

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.

Additional Changes:

For detailed information on changes in this release, see the Red Hat Enterprise Linux 10 Release Notes linked from 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 go-fdo-client package based on the guidance in RHSA-2026:97386.

Plugin Details

Severity: High

ID: 378210

File Name: redhat-RHSA-2026-97386.nasl

Version: 1.1

Type: Local

Agent: unix

Family: Red Hat Local Security Checks

Published: 11/10/2026

Updated: 11/10/2026

Supported Sensors: Nessus Agent, Continuous Assessment, Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 5

Percentile: 92.82

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-2026-33811

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:go-fdo-client

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: 11/10/2026

Vulnerability Publication Date: 3/5/2026

Reference Information

CVE: CVE-2026-25679, CVE-2026-27137, CVE-2026-33811, CVE-2026-39821

CWE: 1286, 1289, 1341, 295

RHSA: 2026:97386

Detections

Analytics