SUSE SLES15 Security Update : yq (SUSE-SU-2026:3327-1)

high Nessus Plugin ID 330573

Synopsis

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

Description

The remote SUSE Linux SLES15 host has a package installed that is affected by multiple vulnerabilities as referenced in the SUSE-SU-2026:3327-1 advisory.

Update to v4.53.3.

- CVE-2026-39821: golang.org/x/net/idna: failure to reject ASCII-only Punycode-encoded labels allows for validation bypass and privilege escalation (bsc#1267199).
- CVE-2026-56852: golang.org/x/text/unicode/norm: improper handling of input containing invalid UTF-8 bytes can lead to infinite loop (bsc#1271994).

Changes for yq:

- v4.53.3:
* Add --ini-preserve-quotes flag for INI round-trip quote preservation.
* Fix: reset INI decoder state on init.
* Fix: decode properties array bracket paths.
* Fix: preserve floats with trailing zero when encoding YAML to JSON.
* Fix: JSON to TOML root scope and null handling.
* Fix: reset TOML decoder finished flag on Init for multi-doc evaluation.
* Fix: reset TOML decoder between files when evaluating all at once.
* Fix: preserve TOML inline table array scope.
* Fix: preserve empty TOML arrays in tables
* Fix: TOML encoder uses inline tables for YAML FlowStyle mappings.
* Fix nested inline YAML merge explode.
* Fix repeatString overflow test on 32-bit platforms.

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 yq package.

Plugin Details

Severity: High

ID: 330573

File Name: suse_SU-2026-3327-1.nasl

Version: 1.1

Type: Local

Agent: unix

Family: SuSE Local Security Checks

Published: 7/29/2026

Updated: 7/29/2026

Supported Sensors: Agentless Assessment, Continuous Assessment, Frictionless Assessment Agent, Frictionless Assessment AWS, Frictionless Assessment Azure, Nessus Agent, Tenable Cloud Security, Tenable Self-Hosted Container Security, 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:suse_linux:15, p-cpe:/a:novell:suse_linux:yq

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: 7/28/2026

Vulnerability Publication Date: 5/12/2026

Reference Information

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

SuSE: SUSE-SU-2026:3327-1

Detections

Analytics