SUSE-SU-2026:3342-1: important: Security update for helm

SLE-UPDATES null at suse.de
Tue Jul 28 16:35:12 UTC 2026 

# Security update for helm

Announcement ID: SUSE-SU-2026:3342-1  
Release Date: 2026-07-28T10:11:24Z  
Rating: important  
References:

  * bsc#1266598
  * bsc#1271997

  
Cross-References:

  * CVE-2026-39821
  * CVE-2026-56852

  
CVSS scores:

  * CVE-2026-39821 ( SUSE ):  9.1
    CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N
  * CVE-2026-39821 ( SUSE ):  7.4 CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N
  * CVE-2026-39821 ( NVD ):  8.2 CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:N
  * CVE-2026-39821 ( NVD ):  9.6 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:N
  * CVE-2026-56852 ( SUSE ):  6.0
    CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
  * CVE-2026-56852 ( SUSE ):  5.9 CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
  * CVE-2026-56852 ( NVD ):  7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

  
Affected Products:

  * Containers Module 15-SP7
  * SUSE Linux Enterprise Desktop 15 SP7
  * SUSE Linux Enterprise High Performance Computing 15 SP4
  * SUSE Linux Enterprise High Performance Computing 15 SP5
  * SUSE Linux Enterprise High Performance Computing ESPOS 15 SP4
  * SUSE Linux Enterprise High Performance Computing ESPOS 15 SP5
  * SUSE Linux Enterprise High Performance Computing LTSS 15 SP4
  * SUSE Linux Enterprise High Performance Computing LTSS 15 SP5
  * SUSE Linux Enterprise Micro 5.5
  * SUSE Linux Enterprise Real Time 15 SP7
  * SUSE Linux Enterprise Server 15 SP4
  * SUSE Linux Enterprise Server 15 SP4 LTSS
  * SUSE Linux Enterprise Server 15 SP5
  * SUSE Linux Enterprise Server 15 SP5 LTSS
  * SUSE Linux Enterprise Server 15 SP6
  * SUSE Linux Enterprise Server 15 SP6 LTSS
  * SUSE Linux Enterprise Server 15 SP7
  * SUSE Linux Enterprise Server for SAP Applications 15 SP4
  * SUSE Linux Enterprise Server for SAP Applications 15 SP5
  * SUSE Linux Enterprise Server for SAP Applications 15 SP6
  * SUSE Linux Enterprise Server for SAP Applications 15 SP7
  * SUSE Package Hub 15 15-SP7

  
  
An update that solves two vulnerabilities can now be installed.

## Description:

This update for helm fixes the following issues:

Update to version 3.21.3.

  * CVE-2026-39821: golang.org/x/net/idna: failure to reject ASCII-only
    Punycode-encoded labels allows for validation bypass and privilege
    escalation (bsc#1266598).
  * CVE-2026-56852: golang.org/x/text/unicode/norm: handling input containing
    truncated or invalid UTF-8 bytes can lead to an infinite loop (bsc#1271997).

Other updates and bugfixes:

  * Update x/text to 0.40.0.
  * Update x/net to 0.57.0.
  * Version 3.21.3:
  * Apply suggestions from code review 1ad6e68 (Benoit Tigeot).
  * fix: drop containerd v1 dep to resolve govulncheck CVEs 037733e (Benoit
    Tigeot).
  * chore(deps): bump github.com/containerd/containerd from 1.7.32 to 1.7.33
    d3e178b.

## Patch Instructions:

To install this SUSE update use the SUSE recommended installation methods like
YaST online_update or "zypper patch".  
Alternatively you can run the command listed for your product:

  * SUSE Linux Enterprise High Performance Computing LTSS 15 SP5  
    zypper in -t patch SUSE-SLE-Product-HPC-15-SP5-LTSS-2026-3342=1

  * SUSE Linux Enterprise Server for SAP Applications 15 SP5  
    zypper in -t patch SUSE-SLE-Product-SLES_SAP-15-SP5-2026-3342=1

  * SUSE Linux Enterprise High Performance Computing LTSS 15 SP4  
    zypper in -t patch SUSE-SLE-Product-HPC-15-SP4-LTSS-2026-3342=1

  * SUSE Linux Enterprise Micro 5.5  
    zypper in -t patch SUSE-SLE-Micro-5.5-2026-3342=1

  * SUSE Package Hub 15 15-SP7  
    zypper in -t patch SUSE-SLE-Module-Packagehub-Subpackages-15-SP7-2026-3342=1

  * SUSE Linux Enterprise Server for SAP Applications 15 SP6  
    zypper in -t patch SUSE-SLE-Product-SLES_SAP-15-SP6-2026-3342=1

  * SUSE Linux Enterprise Server 15 SP6 LTSS  
    zypper in -t patch SUSE-SLE-Product-SLES-15-SP6-LTSS-2026-3342=1

  * SUSE Linux Enterprise Server 15 SP5 LTSS  
    zypper in -t patch SUSE-SLE-Product-SLES-15-SP5-LTSS-2026-3342=1

  * Containers Module 15-SP7  
    zypper in -t patch SUSE-SLE-Module-Containers-15-SP7-2026-3342=1

  * SUSE Linux Enterprise High Performance Computing ESPOS 15 SP4  
    zypper in -t patch SUSE-SLE-Product-HPC-15-SP4-ESPOS-2026-3342=1

  * SUSE Linux Enterprise Server for SAP Applications 15 SP4  
    zypper in -t patch SUSE-SLE-Product-SLES_SAP-15-SP4-2026-3342=1

  * SUSE Linux Enterprise Server 15 SP4 LTSS  
    zypper in -t patch SUSE-SLE-Product-SLES-15-SP4-LTSS-2026-3342=1

  * SUSE Linux Enterprise High Performance Computing ESPOS 15 SP5  
    zypper in -t patch SUSE-SLE-Product-HPC-15-SP5-ESPOS-2026-3342=1

## Package List:

  * SUSE Linux Enterprise Server 15 SP4 LTSS (noarch)
    * helm-bash-completion-3.21.3-150000.1.85.1
    * helm-zsh-completion-3.21.3-150000.1.85.1
  * SUSE Linux Enterprise Server 15 SP4 LTSS (aarch64 ppc64le s390x x86_64)
    * helm-debuginfo-3.21.3-150000.1.85.1
    * helm-3.21.3-150000.1.85.1
  * SUSE Linux Enterprise Server for SAP Applications 15 SP5 (noarch)
    * helm-bash-completion-3.21.3-150000.1.85.1
    * helm-zsh-completion-3.21.3-150000.1.85.1
  * SUSE Linux Enterprise Server for SAP Applications 15 SP5 (ppc64le x86_64)
    * helm-debuginfo-3.21.3-150000.1.85.1
    * helm-3.21.3-150000.1.85.1
  * Containers Module 15-SP7 (aarch64 ppc64le s390x x86_64)
    * helm-debuginfo-3.21.3-150000.1.85.1
    * helm-3.21.3-150000.1.85.1
  * Containers Module 15-SP7 (noarch)
    * helm-bash-completion-3.21.3-150000.1.85.1
    * helm-zsh-completion-3.21.3-150000.1.85.1
  * SUSE Linux Enterprise High Performance Computing LTSS 15 SP5 (aarch64
    x86_64)
    * helm-debuginfo-3.21.3-150000.1.85.1
    * helm-3.21.3-150000.1.85.1
  * SUSE Linux Enterprise High Performance Computing LTSS 15 SP5 (noarch)
    * helm-bash-completion-3.21.3-150000.1.85.1
    * helm-zsh-completion-3.21.3-150000.1.85.1
  * SUSE Package Hub 15 15-SP7 (noarch)
    * helm-fish-completion-3.21.3-150000.1.85.1
  * SUSE Linux Enterprise Server 15 SP5 LTSS (noarch)
    * helm-bash-completion-3.21.3-150000.1.85.1
    * helm-zsh-completion-3.21.3-150000.1.85.1
  * SUSE Linux Enterprise Server 15 SP5 LTSS (aarch64 ppc64le s390x x86_64)
    * helm-debuginfo-3.21.3-150000.1.85.1
    * helm-3.21.3-150000.1.85.1
  * SUSE Linux Enterprise High Performance Computing LTSS 15 SP4 (aarch64
    x86_64)
    * helm-debuginfo-3.21.3-150000.1.85.1
    * helm-3.21.3-150000.1.85.1
  * SUSE Linux Enterprise High Performance Computing LTSS 15 SP4 (noarch)
    * helm-bash-completion-3.21.3-150000.1.85.1
    * helm-zsh-completion-3.21.3-150000.1.85.1
  * SUSE Linux Enterprise Server 15 SP6 LTSS (aarch64 ppc64le s390x x86_64)
    * helm-debuginfo-3.21.3-150000.1.85.1
    * helm-3.21.3-150000.1.85.1
  * SUSE Linux Enterprise Server 15 SP6 LTSS (noarch)
    * helm-bash-completion-3.21.3-150000.1.85.1
    * helm-zsh-completion-3.21.3-150000.1.85.1
  * SUSE Linux Enterprise Server for SAP Applications 15 SP4 (noarch)
    * helm-bash-completion-3.21.3-150000.1.85.1
    * helm-zsh-completion-3.21.3-150000.1.85.1
  * SUSE Linux Enterprise Server for SAP Applications 15 SP4 (ppc64le x86_64)
    * helm-debuginfo-3.21.3-150000.1.85.1
    * helm-3.21.3-150000.1.85.1
  * SUSE Linux Enterprise Micro 5.5 (aarch64 ppc64le s390x x86_64)
    * helm-debuginfo-3.21.3-150000.1.85.1
    * helm-3.21.3-150000.1.85.1
  * SUSE Linux Enterprise Micro 5.5 (noarch)
    * helm-bash-completion-3.21.3-150000.1.85.1
  * SUSE Linux Enterprise Server for SAP Applications 15 SP6 (noarch)
    * helm-bash-completion-3.21.3-150000.1.85.1
    * helm-zsh-completion-3.21.3-150000.1.85.1
  * SUSE Linux Enterprise Server for SAP Applications 15 SP6 (ppc64le x86_64)
    * helm-debuginfo-3.21.3-150000.1.85.1
    * helm-3.21.3-150000.1.85.1
  * SUSE Linux Enterprise High Performance Computing ESPOS 15 SP5 (aarch64
    x86_64)
    * helm-debuginfo-3.21.3-150000.1.85.1
    * helm-3.21.3-150000.1.85.1
  * SUSE Linux Enterprise High Performance Computing ESPOS 15 SP5 (noarch)
    * helm-bash-completion-3.21.3-150000.1.85.1
    * helm-zsh-completion-3.21.3-150000.1.85.1
  * SUSE Linux Enterprise High Performance Computing ESPOS 15 SP4 (aarch64
    x86_64)
    * helm-debuginfo-3.21.3-150000.1.85.1
    * helm-3.21.3-150000.1.85.1
  * SUSE Linux Enterprise High Performance Computing ESPOS 15 SP4 (noarch)
    * helm-bash-completion-3.21.3-150000.1.85.1
    * helm-zsh-completion-3.21.3-150000.1.85.1

## References:

  * https://www.suse.com/security/cve/CVE-2026-39821.html
  * https://www.suse.com/security/cve/CVE-2026-56852.html
  * https://bugzilla.suse.com/show_bug.cgi?id=1266598
  * https://bugzilla.suse.com/show_bug.cgi?id=1271997

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