Upstream information

CVE-2026-34397 at MITRE

Description

Himmelblau is an interoperability suite for Microsoft Azure Entra ID and Intune. From versions 2.0.0-alpha to before 2.3.9 and 3.0.0-alpha to before 3.1.1, there is a conditional local privilege escalation vulnerability in an edge-case naming collision. Only authenticated himmelblau users whose mapped CN/short name exactly matches a privileged local group name (e.g., "sudo", "wheel", "docker", "adm") can cause the NSS module to resolve that group name to their fake primary group. If the system uses NSS results for group-based authorization decisions (sudo, polkit, etc.), this can grant the attacker the privileges of that group. This issue has been patched in versions 2.3.9 and 3.1.1.

SUSE information

Overall state of this security issue: Pending

This issue is currently rated as having moderate severity.

CVSS v3 Scores
CVSS detail CNA (GitHub) SUSE
Base Score 6.3 6.3
Vector CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:N CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:N
Attack Vector Local Local
Attack Complexity High High
Privileges Required Low Low
User Interaction None None
Scope Unchanged Unchanged
Confidentiality Impact High High
Integrity Impact High High
Availability Impact None None
CVSSv3 Version 3.1 3.1
CVSS v4 Scores
CVSS detail SUSE
Base Score 7.2
Vector 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
Attack Vector Local
Attack Complexity High
Attack Requirements Present
Privileges Required Low
User Interaction None
Vulnerable System Confidentiality Impact High
Vulnerable System Integrity Impact High
Vulnerable System Availability Impact None
Subsequent System Confidentiality Impact None
Subsequent System Integrity Impact None
Subsequent System Availability Impact None
CVSSv4 Version 4.0
SUSE Bugzilla entry: 1261324 [NEW]

No SUSE Security Announcements cross referenced.

List of packages in QA

Product(s) Package(s)
SUSE Linux Enterprise Module for Basesystem 15 SP7
  • himmelblau >= 2.3.9+git0.a9fd29b-150700.3.15.1
  • himmelblau-sshd-config >= 2.3.9+git0.a9fd29b-150700.3.15.1
  • libnss_himmelblau2 >= 2.3.9+git0.a9fd29b-150700.3.15.1
  • pam-himmelblau >= 2.3.9+git0.a9fd29b-150700.3.15.1
SUSE Linux Enterprise Server 15 SP7
  • himmelblau >= 2.3.9+git0.a9fd29b-150700.3.15.1
  • himmelblau-sshd-config >= 2.3.9+git0.a9fd29b-150700.3.15.1
  • libnss_himmelblau2 >= 2.3.9+git0.a9fd29b-150700.3.15.1
  • pam-himmelblau >= 2.3.9+git0.a9fd29b-150700.3.15.1
SUSE Linux Enterprise Desktop 15 SP7
  • himmelblau >= 2.3.9+git0.a9fd29b-150700.3.15.1
  • himmelblau-sshd-config >= 2.3.9+git0.a9fd29b-150700.3.15.1
  • libnss_himmelblau2 >= 2.3.9+git0.a9fd29b-150700.3.15.1
  • pam-himmelblau >= 2.3.9+git0.a9fd29b-150700.3.15.1
SUSE Linux Enterprise Server for SAP Applications 15 SP7
  • himmelblau >= 2.3.9+git0.a9fd29b-150700.3.15.1
  • himmelblau-sshd-config >= 2.3.9+git0.a9fd29b-150700.3.15.1
  • libnss_himmelblau2 >= 2.3.9+git0.a9fd29b-150700.3.15.1
  • pam-himmelblau >= 2.3.9+git0.a9fd29b-150700.3.15.1
SUSE Linux Enterprise High Performance Computing 15 SP7
  • himmelblau >= 2.3.9+git0.a9fd29b-150700.3.15.1
  • himmelblau-sshd-config >= 2.3.9+git0.a9fd29b-150700.3.15.1
  • libnss_himmelblau2 >= 2.3.9+git0.a9fd29b-150700.3.15.1
  • pam-himmelblau >= 2.3.9+git0.a9fd29b-150700.3.15.1

Status of this issue by product and package

Please note that this evaluation state might be work in progress, incomplete or outdated. Also information for service packs in the LTSS phase is only included for issues meeting the LTSS criteria. If in doubt, feel free to contact us for clarification. The updates are grouped by state of their lifecycle. SUSE product lifecycles are documented on the lifecycle page.

Product(s) Source package State
Products under general support and receiving all security fixes.
SUSE Linux Enterprise Desktop 15 SP7 himmelblau In progress
SUSE Linux Enterprise High Performance Computing 15 SP7 himmelblau In progress
SUSE Linux Enterprise Module for Basesystem 15 SP7 himmelblau In progress
SUSE Linux Enterprise Server 15 SP7 himmelblau In progress
SUSE Linux Enterprise Server 16.0 himmelblau In progress
SUSE Linux Enterprise Server 16.1 himmelblau Affected
SUSE Linux Enterprise Server for SAP Applications 15 SP7 himmelblau In progress
SUSE Linux Enterprise Server for SAP applications 16.0 himmelblau In progress
SUSE Linux Enterprise Server for SAP applications 16.1 himmelblau Affected
openSUSE Leap 15.6 himmelblau Affected
Products under Long Term Service Pack support and receiving important and critical security fixes.
SUSE Linux Enterprise High Performance Computing 15 SP5-LTSS himmelblau Affected
SUSE Linux Enterprise Server 15 SP5-LTSS himmelblau Affected
SUSE Linux Enterprise Server 15 SP6-LTSS himmelblau Affected
SUSE Linux Enterprise Server for SAP Applications 15 SP6 himmelblau Affected
Products past their end of life and not receiving proactive updates anymore.
SUSE Linux Enterprise High Performance Computing 15 SP5-ESPOS himmelblau Affected
SUSE Linux Enterprise Server for SAP Applications 15 SP5 himmelblau Affected

SUSE Timeline for this CVE

CVE page created: Wed Apr 1 21:01:26 2026
CVE page last modified: Thu Apr 2 20:01:02 2026