SUSE-SU-2026:2108-1

CRITICAL9.9

Security update for samba

Published May 29, 2026

Modified 1 weeks ago

Fix available

Details

Description of the patch:

This update for samba fixes the following issues

CVE-2026-2340: vfs_worm does not block directory modification (bsc#1261158).
CVE-2026-3238: unauthenticated udp packet crashes AD DC nbt server (bsc#1261160).
CVE-2026-4408: Remote Code Execution in SAMR (bsc#1261163).
CVE-2026-4480: Unauthenticated Remote Code Execution (bsc#1261161).

Non security issues:

Fix pthreadpool_tevent race conditions accessing both pthreadpool_tevent.jobs list and pthreadpool_tevent.glue_list (bsc#1252963)

Affected Packages(25 packages)

ctdb

SUSE Linux Enterprise High Availability Extension 15 SP4

Fixed in:

4.15.13+git.780.d2f53cbcded-150400.3.49.1

libsamba-policy-devel

SUSE Linux Enterprise High Performance Computing 15 SP4-ESPOSSUSE Linux Enterprise High Performance Computing 15 SP4-LTSSSUSE Linux Enterprise Server 15 SP4-LTSSSUSE Linux Enterprise Server for SAP Applications 15 SP4

Fixed in:

4.15.13+git.780.d2f53cbcded-150400.3.49.1

libsamba-policy-python3-devel

SUSE Linux Enterprise High Performance Computing 15 SP4-ESPOSSUSE Linux Enterprise High Performance Computing 15 SP4-LTSSSUSE Linux Enterprise Server 15 SP4-LTSSSUSE Linux Enterprise Server for SAP Applications 15 SP4

Fixed in:

4.15.13+git.780.d2f53cbcded-150400.3.49.1

libsamba-policy0-python3

SUSE Linux Enterprise High Performance Computing 15 SP4-ESPOSSUSE Linux Enterprise High Performance Computing 15 SP4-LTSSSUSE Linux Enterprise Server 15 SP4-LTSSSUSE Linux Enterprise Server for SAP Applications 15 SP4

Fixed in:

4.15.13+git.780.d2f53cbcded-150400.3.49.1

samba

SUSE Linux Enterprise High Performance Computing 15 SP4-ESPOSSUSE Linux Enterprise High Performance Computing 15 SP4-LTSSSUSE Linux Enterprise Server 15 SP4-LTSSSUSE Linux Enterprise Server for SAP Applications 15 SP4

Fixed in:

4.15.13+git.780.d2f53cbcded-150400.3.49.1

samba-ad-dc-libs

SUSE Linux Enterprise High Performance Computing 15 SP4-ESPOSSUSE Linux Enterprise High Performance Computing 15 SP4-LTSSSUSE Linux Enterprise Server 15 SP4-LTSSSUSE Linux Enterprise Server for SAP Applications 15 SP4

Fixed in:

4.15.13+git.780.d2f53cbcded-150400.3.49.1

samba-ad-dc-libs-32bit

SUSE Linux Enterprise High Performance Computing 15 SP4-ESPOSSUSE Linux Enterprise High Performance Computing 15 SP4-LTSSSUSE Linux Enterprise Server 15 SP4-LTSSSUSE Linux Enterprise Server for SAP Applications 15 SP4

Fixed in:

4.15.13+git.780.d2f53cbcded-150400.3.49.1

samba-ceph

SUSE Linux Enterprise High Performance Computing 15 SP4-ESPOSSUSE Linux Enterprise High Performance Computing 15 SP4-LTSSSUSE Linux Enterprise Server 15 SP4-LTSSSUSE Linux Enterprise Server for SAP Applications 15 SP4

Fixed in:

4.15.13+git.780.d2f53cbcded-150400.3.49.1

samba-client

SUSE Linux Enterprise High Performance Computing 15 SP4-ESPOSSUSE Linux Enterprise High Performance Computing 15 SP4-LTSSSUSE Linux Enterprise Server 15 SP4-LTSSSUSE Linux Enterprise Server for SAP Applications 15 SP4

Fixed in:

4.15.13+git.780.d2f53cbcded-150400.3.49.1

samba-client-32bit

SUSE Linux Enterprise High Performance Computing 15 SP4-ESPOSSUSE Linux Enterprise High Performance Computing 15 SP4-LTSSSUSE Linux Enterprise Server 15 SP4-LTSSSUSE Linux Enterprise Server for SAP Applications 15 SP4

Fixed in:

4.15.13+git.780.d2f53cbcded-150400.3.49.1

References

https://bugzilla.suse.com/1252963

https://bugzilla.suse.com/1261158

https://bugzilla.suse.com/1261160

https://bugzilla.suse.com/1261161

https://bugzilla.suse.com/1261163

https://lists.suse.com/pipermail/sle-updates/2026-May/046856.html

https://www.suse.com/security/cve/CVE-2026-2340/

https://www.suse.com/security/cve/CVE-2026-3238/

https://www.suse.com/security/cve/CVE-2026-4408/

https://www.suse.com/security/cve/CVE-2026-4480/

https://www.suse.com/support/security/rating/

https://www.suse.com/support/update/announcement/2026/suse-su-20262108-1/

CVSS Analysis

CVSS v3.1

9.9

Exploitability

Attack Vector

NetworkAV:N

Attack Complexity

LowAC:L

Privileges Required

LowPR:L

User Interaction

NoneUI:N

Scope

Scope

ChangedS:C

Impact

Confidentiality

HighC:H

Integrity

HighI:H

Availability

HighA:H

9.9/CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H

Upstream

CVE-2026-2340 CVE-2026-3238 CVE-2026-4408 CVE-2026-4480

Ecosystems(7)

SUSE Linux Enterprise High Availability Extension 15 SP4 SUSE Linux Enterprise High Performance Computing 15 SP4-ESPOS SUSE Linux Enterprise High Performance Computing 15 SP4-LTSS SUSE Linux Enterprise Micro 5.3 SUSE Linux Enterprise Micro 5.4

Timeline

PublishedMay 29, 2026

ModifiedMay 29, 2026

SUSE-SU-2026:2108-1 | Mondoo Vulnerability Intelligence