Detections
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openSUSE 16 Security Update : gh (openSUSE-SU-2026:21432-1)

high Nessus Plugin ID 329719

Synopsis

The remote openSUSE host is missing a security update.

Description

The remote openSUSE 16 host has packages installed that are affected by a vulnerability as referenced in the openSUSE- SU-2026:21432-1 advisory.

 Changes in gh:

 - CVE-2026-39821: reject all-ASCII xn-- Punycode labels in the vendored golang.org/x/net/idna package regardless of Go's unicode.Version (boo#1266618).

Tenable has extracted the preceding description block directly from the SUSE 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 affected gh, gh-bash-completion, gh-fish-completion and / or gh-zsh-completion packages.

See Also

https://bugzilla.suse.com/1266618

https://www.suse.com/security/cve/CVE-2026-39821

Plugin Details

Severity: High

ID: 329719

File Name: openSUSE-2026-21432-1.nasl

Version: 1.1

Type: Local

Agent: unix

Published: 7/25/2026

Updated: 7/25/2026

Supported Sensors: Continuous Assessment, Nessus Agent, Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 4.8

Percentile: 57.7

CVSS v2

Risk Factor: High

Base Score: 9.4

Temporal Score: 7

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

CVSS Score Source: CVE-2026-39821

CVSS v3

Risk Factor: High

Base Score: 8.2

Temporal Score: 7.1

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

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

Vulnerability Information

CPE: cpe:/o:novell:opensuse:16.0, p-cpe:/a:novell:opensuse:gh-bash-completion, p-cpe:/a:novell:opensuse:gh-fish-completion, p-cpe:/a:novell:opensuse:gh-zsh-completion, p-cpe:/a:novell:opensuse:gh

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

Exploit Ease: No known exploits are available

Patch Publication Date: 7/23/2026

Vulnerability Publication Date: 5/12/2026

Reference Information

CVE: CVE-2026-39821