SUSE-SU-2026:21437-1: moderate: Security update for himmelblau

[SLE-SECURITY-UPDATES]

# Security update for himmelblau

Announcement ID: SUSE-SU-2026:21437-1  
Release Date: 2026-04-30T17:06:48Z  
Rating: moderate  
References:

  * bsc#1261324
  * bsc#1261613

  
Cross-References:

  * CVE-2026-34397

  
CVSS scores:

  * CVE-2026-34397 ( SUSE ):  7.2
    CVSS:4.0/AV:L/AC:H/AT:P/PR:L/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N
  * CVE-2026-34397 ( SUSE ):  6.3 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:N
  * CVE-2026-34397 ( NVD ):  6.3 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:N
  * CVE-2026-34397 ( NVD ):  7.0 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H

  
Affected Products:

  * SUSE Linux Enterprise Server 16.0
  * SUSE Linux Enterprise Server for SAP applications 16.0

  
  
An update that solves one vulnerability and has one fix can now be installed.

## Description:

This update for himmelblau fixes the following issues:

Update to version 2.3.9+git0.a9fd29b.

Security issues fixed:

  * CVE-2026-34397: Fixed naming collision that can lead to local privilege
    escalation (bsc#1261324).

Other updates and bugfixes:

  * update aws-lc-sys to 0.39.0 for security fixes
  * update rustls-webpki to 0.103.10 for CRL revocation fix
  * Version 2.3.9:
  * packaging: fix if/else block for debian's postrm
  * Update apparmor.unix-chkpwd.local (Issue #1252)
  * When Hello user encounters SSPR demand, be permissive
  * add tests for sudo_groups functionality
  * Fix config tests to ignore local host config
  * Do not clear $NOTIFY_SOCKET when calling sd_ready
  * Fix token cache 24h purge
  * broker: use SSO server nonce for PRT only when provided
  * Fix pam_himmelblau blocking local user password changes (#1199)
  * Remove unused File import
  * Use is_ascii_alphanumeric() for account_id validation
  * Fix path traversal in LoadProfilePhoto AccountsService writes
  * Drop initialization tracing span
  * himmelblau-hsm-pin-init: drop RemainAfterExit=yes
  * Add fallback behavior when consent is required
  * qr-greeter: enable extension without socket noise
  * debian: make install/remove noninteractive; reduce QR postinst noise; soften
    missing hello prt
  * Never respond with BadRequest without error detail
  * deps(rust): bump the all-cargo-updates group across 1 directory with 7
    updates

## 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 Server for SAP applications 16.0  
    zypper in -t patch SUSE-SLES-16.0-664=1

  * SUSE Linux Enterprise Server 16.0  
    zypper in -t patch SUSE-SLES-16.0-664=1

## Package List:

  * SUSE Linux Enterprise Server for SAP applications 16.0 (x86_64)
    * himmelblau-sso-2.3.9+git0.a9fd29b-160000.1.1
    * libnss_himmelblau2-2.3.9+git0.a9fd29b-160000.1.1
    * himmelblau-2.3.9+git0.a9fd29b-160000.1.1
    * himmelblau-debuginfo-2.3.9+git0.a9fd29b-160000.1.1
    * himmelblau-sso-debuginfo-2.3.9+git0.a9fd29b-160000.1.1
    * pam-himmelblau-2.3.9+git0.a9fd29b-160000.1.1
  * SUSE Linux Enterprise Server for SAP applications 16.0 (noarch)
    * himmelblau-sshd-config-2.3.9+git0.a9fd29b-160000.1.1
    * himmelblau-qr-greeter-2.3.9+git0.a9fd29b-160000.1.1
  * SUSE Linux Enterprise Server 16.0 (aarch64 x86_64)
    * himmelblau-sso-2.3.9+git0.a9fd29b-160000.1.1
    * libnss_himmelblau2-2.3.9+git0.a9fd29b-160000.1.1
    * himmelblau-2.3.9+git0.a9fd29b-160000.1.1
    * himmelblau-debuginfo-2.3.9+git0.a9fd29b-160000.1.1
    * himmelblau-sso-debuginfo-2.3.9+git0.a9fd29b-160000.1.1
    * pam-himmelblau-2.3.9+git0.a9fd29b-160000.1.1
  * SUSE Linux Enterprise Server 16.0 (noarch)
    * himmelblau-sshd-config-2.3.9+git0.a9fd29b-160000.1.1
    * himmelblau-qr-greeter-2.3.9+git0.a9fd29b-160000.1.1

## References:

  * https://www.suse.com/security/cve/CVE-2026-34397.html
  * https://bugzilla.suse.com/show_bug.cgi?id=1261324
  * https://bugzilla.suse.com/show_bug.cgi?id=1261613

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