openSUSE 16 Security Update : distribution (openSUSE-SU-2026:21441-1)

high Nessus Plugin ID 330078

Synopsis

The remote openSUSE host is missing one or more security updates.

Description

The remote openSUSE 16 host has a package installed that is affected by multiple vulnerabilities as referenced in the openSUSE-SU-2026:21441-1 advisory.

This update for distribution fixes the following issues

- CVE-2026-39821: golang.org/x/net/idna: failure to reject ASCII-only Punycode-encoded labels allows for validation bypass and privilege escalation (bsc#1266629).
- CVE-2026-56852: golang.org/x/text/unicode/norm: infinite loop on truncated/invalid UTF-8 input (bsc#1272132).

Tenable has extracted the preceding description block directly from the SUSE 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 affected distribution-registry package.

See Also

https://bugzilla.suse.com/1266629

https://bugzilla.suse.com/1272132

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

https://www.suse.com/security/cve/CVE-2026-56852

Plugin Details

Severity: High

ID: 330078

File Name: openSUSE-2026-21441-1.nasl

Version: 1.1

Type: Local

Agent: unix

Published: 7/27/2026

Updated: 7/27/2026

Supported Sensors: Nessus Agent, Continuous Assessment, 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:distribution-registry

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: 7/24/2026

Vulnerability Publication Date: 5/12/2026

Reference Information

CVE: CVE-2026-39821, CVE-2026-56852