RHSA-2026:28058 — Red Hat Security Advisory: samba security update

Fixed packages 86

Release	Package	Fixed in
Red Hat · RHEL 8.4 AUS rhel_aus:8.4::baseos	ctdb	0:4.13.3-12.el8_4.1
Red Hat · RHEL 8.4 AUS rhel_aus:8.4::baseos	ctdb-debuginfo	0:4.13.3-12.el8_4.1
Red Hat · RHEL 8.4 AUS rhel_aus:8.4::baseos	ctdb-tests	0:4.13.3-12.el8_4.1
Red Hat · RHEL 8.4 AUS rhel_aus:8.4::baseos	ctdb-tests-debuginfo	0:4.13.3-12.el8_4.1
Red Hat · RHEL 8.4 AUS rhel_aus:8.4::baseos	libsmbclient	0:4.13.3-12.el8_4.1
Red Hat · RHEL 8.4 AUS rhel_aus:8.4::baseos	libsmbclient-debuginfo	0:4.13.3-12.el8_4.1
Red Hat · RHEL 8.4 AUS rhel_aus:8.4::baseos	libwbclient	0:4.13.3-12.el8_4.1
Red Hat · RHEL 8.4 AUS rhel_aus:8.4::baseos	libwbclient-debuginfo	0:4.13.3-12.el8_4.1
Red Hat · RHEL 8.4 AUS rhel_aus:8.4::baseos	python3-samba	0:4.13.3-12.el8_4.1
Red Hat · RHEL 8.4 AUS rhel_aus:8.4::baseos	python3-samba-debuginfo	0:4.13.3-12.el8_4.1
Red Hat · RHEL 8.4 AUS rhel_aus:8.4::baseos	python3-samba-test	0:4.13.3-12.el8_4.1
Red Hat · RHEL 8.4 AUS rhel_aus:8.4::baseos	samba	0:4.13.3-12.el8_4.1
Red Hat · RHEL 8.4 AUS rhel_aus:8.4::baseos	samba-client	0:4.13.3-12.el8_4.1
Red Hat · RHEL 8.4 AUS rhel_aus:8.4::baseos	samba-client-debuginfo	0:4.13.3-12.el8_4.1
Red Hat · RHEL 8.4 AUS rhel_aus:8.4::baseos	samba-client-libs	0:4.13.3-12.el8_4.1
Red Hat · RHEL 8.4 AUS rhel_aus:8.4::baseos	samba-client-libs-debuginfo	0:4.13.3-12.el8_4.1
Red Hat · RHEL 8.4 AUS rhel_aus:8.4::baseos	samba-common	0:4.13.3-12.el8_4.1
Red Hat · RHEL 8.4 AUS rhel_aus:8.4::baseos	samba-common-libs	0:4.13.3-12.el8_4.1
Red Hat · RHEL 8.4 AUS rhel_aus:8.4::baseos	samba-common-libs-debuginfo	0:4.13.3-12.el8_4.1
Red Hat · RHEL 8.4 AUS rhel_aus:8.4::baseos	samba-common-tools	0:4.13.3-12.el8_4.1
Red Hat · RHEL 8.4 AUS rhel_aus:8.4::baseos	samba-common-tools-debuginfo	0:4.13.3-12.el8_4.1
Red Hat · RHEL 8.4 AUS rhel_aus:8.4::baseos	samba-debuginfo	0:4.13.3-12.el8_4.1
Red Hat · RHEL 8.4 AUS rhel_aus:8.4::baseos	samba-debugsource	0:4.13.3-12.el8_4.1
Red Hat · RHEL 8.4 AUS rhel_aus:8.4::baseos	samba-krb5-printing	0:4.13.3-12.el8_4.1
Red Hat · RHEL 8.4 AUS rhel_aus:8.4::baseos	samba-krb5-printing-debuginfo	0:4.13.3-12.el8_4.1
Red Hat · RHEL 8.4 AUS rhel_aus:8.4::baseos	samba-libs	0:4.13.3-12.el8_4.1
Red Hat · RHEL 8.4 AUS rhel_aus:8.4::baseos	samba-libs-debuginfo	0:4.13.3-12.el8_4.1
Red Hat · RHEL 8.4 AUS rhel_aus:8.4::baseos	samba-pidl	0:4.13.3-12.el8_4.1
Red Hat · RHEL 8.4 AUS rhel_aus:8.4::baseos	samba-test	0:4.13.3-12.el8_4.1
Red Hat · RHEL 8.4 AUS rhel_aus:8.4::baseos	samba-test-debuginfo	0:4.13.3-12.el8_4.1
Red Hat · RHEL 8.4 AUS rhel_aus:8.4::baseos	samba-test-libs	0:4.13.3-12.el8_4.1
Red Hat · RHEL 8.4 AUS rhel_aus:8.4::baseos	samba-test-libs-debuginfo	0:4.13.3-12.el8_4.1
Red Hat · RHEL 8.4 AUS rhel_aus:8.4::baseos	samba-vfs-glusterfs-debuginfo	0:4.13.3-12.el8_4.1
Red Hat · RHEL 8.4 AUS rhel_aus:8.4::baseos	samba-winbind	0:4.13.3-12.el8_4.1
Red Hat · RHEL 8.4 AUS rhel_aus:8.4::baseos	samba-winbind-clients	0:4.13.3-12.el8_4.1
Red Hat · RHEL 8.4 AUS rhel_aus:8.4::baseos	samba-winbind-clients-debuginfo	0:4.13.3-12.el8_4.1
Red Hat · RHEL 8.4 AUS rhel_aus:8.4::baseos	samba-winbind-debuginfo	0:4.13.3-12.el8_4.1
Red Hat · RHEL 8.4 AUS rhel_aus:8.4::baseos	samba-winbind-krb5-locator	0:4.13.3-12.el8_4.1
Red Hat · RHEL 8.4 AUS rhel_aus:8.4::baseos	samba-winbind-krb5-locator-debuginfo	0:4.13.3-12.el8_4.1
Red Hat · RHEL 8.4 AUS rhel_aus:8.4::baseos	samba-winbind-modules	0:4.13.3-12.el8_4.1
Red Hat · RHEL 8.4 AUS rhel_aus:8.4::baseos	samba-winbind-modules-debuginfo	0:4.13.3-12.el8_4.1
Red Hat · RHEL 8.4 AUS rhel_aus:8.4::baseos	samba-winexe	0:4.13.3-12.el8_4.1
Red Hat · RHEL 8.4 AUS rhel_aus:8.4::baseos	samba-winexe-debuginfo	0:4.13.3-12.el8_4.1
Red Hat · RHEL 8.4 EUS Long Life rhel_eus_long_life:8.4::baseos	ctdb	0:4.13.3-12.el8_4.1
Red Hat · RHEL 8.4 EUS Long Life rhel_eus_long_life:8.4::baseos	ctdb-debuginfo	0:4.13.3-12.el8_4.1
Red Hat · RHEL 8.4 EUS Long Life rhel_eus_long_life:8.4::baseos	ctdb-tests	0:4.13.3-12.el8_4.1
Red Hat · RHEL 8.4 EUS Long Life rhel_eus_long_life:8.4::baseos	ctdb-tests-debuginfo	0:4.13.3-12.el8_4.1
Red Hat · RHEL 8.4 EUS Long Life rhel_eus_long_life:8.4::baseos	libsmbclient	0:4.13.3-12.el8_4.1
Red Hat · RHEL 8.4 EUS Long Life rhel_eus_long_life:8.4::baseos	libsmbclient-debuginfo	0:4.13.3-12.el8_4.1
Red Hat · RHEL 8.4 EUS Long Life rhel_eus_long_life:8.4::baseos	libwbclient	0:4.13.3-12.el8_4.1
Red Hat · RHEL 8.4 EUS Long Life rhel_eus_long_life:8.4::baseos	libwbclient-debuginfo	0:4.13.3-12.el8_4.1
Red Hat · RHEL 8.4 EUS Long Life rhel_eus_long_life:8.4::baseos	python3-samba	0:4.13.3-12.el8_4.1
Red Hat · RHEL 8.4 EUS Long Life rhel_eus_long_life:8.4::baseos	python3-samba-debuginfo	0:4.13.3-12.el8_4.1
Red Hat · RHEL 8.4 EUS Long Life rhel_eus_long_life:8.4::baseos	python3-samba-test	0:4.13.3-12.el8_4.1
Red Hat · RHEL 8.4 EUS Long Life rhel_eus_long_life:8.4::baseos	samba	0:4.13.3-12.el8_4.1
Red Hat · RHEL 8.4 EUS Long Life rhel_eus_long_life:8.4::baseos	samba-client	0:4.13.3-12.el8_4.1
Red Hat · RHEL 8.4 EUS Long Life rhel_eus_long_life:8.4::baseos	samba-client-debuginfo	0:4.13.3-12.el8_4.1
Red Hat · RHEL 8.4 EUS Long Life rhel_eus_long_life:8.4::baseos	samba-client-libs	0:4.13.3-12.el8_4.1
Red Hat · RHEL 8.4 EUS Long Life rhel_eus_long_life:8.4::baseos	samba-client-libs-debuginfo	0:4.13.3-12.el8_4.1
Red Hat · RHEL 8.4 EUS Long Life rhel_eus_long_life:8.4::baseos	samba-common	0:4.13.3-12.el8_4.1
Red Hat · RHEL 8.4 EUS Long Life rhel_eus_long_life:8.4::baseos	samba-common-libs	0:4.13.3-12.el8_4.1
Red Hat · RHEL 8.4 EUS Long Life rhel_eus_long_life:8.4::baseos	samba-common-libs-debuginfo	0:4.13.3-12.el8_4.1
Red Hat · RHEL 8.4 EUS Long Life rhel_eus_long_life:8.4::baseos	samba-common-tools	0:4.13.3-12.el8_4.1
Red Hat · RHEL 8.4 EUS Long Life rhel_eus_long_life:8.4::baseos	samba-common-tools-debuginfo	0:4.13.3-12.el8_4.1
Red Hat · RHEL 8.4 EUS Long Life rhel_eus_long_life:8.4::baseos	samba-debuginfo	0:4.13.3-12.el8_4.1
Red Hat · RHEL 8.4 EUS Long Life rhel_eus_long_life:8.4::baseos	samba-debugsource	0:4.13.3-12.el8_4.1
Red Hat · RHEL 8.4 EUS Long Life rhel_eus_long_life:8.4::baseos	samba-krb5-printing	0:4.13.3-12.el8_4.1
Red Hat · RHEL 8.4 EUS Long Life rhel_eus_long_life:8.4::baseos	samba-krb5-printing-debuginfo	0:4.13.3-12.el8_4.1
Red Hat · RHEL 8.4 EUS Long Life rhel_eus_long_life:8.4::baseos	samba-libs	0:4.13.3-12.el8_4.1
Red Hat · RHEL 8.4 EUS Long Life rhel_eus_long_life:8.4::baseos	samba-libs-debuginfo	0:4.13.3-12.el8_4.1
Red Hat · RHEL 8.4 EUS Long Life rhel_eus_long_life:8.4::baseos	samba-pidl	0:4.13.3-12.el8_4.1
Red Hat · RHEL 8.4 EUS Long Life rhel_eus_long_life:8.4::baseos	samba-test	0:4.13.3-12.el8_4.1
Red Hat · RHEL 8.4 EUS Long Life rhel_eus_long_life:8.4::baseos	samba-test-debuginfo	0:4.13.3-12.el8_4.1
Red Hat · RHEL 8.4 EUS Long Life rhel_eus_long_life:8.4::baseos	samba-test-libs	0:4.13.3-12.el8_4.1
Red Hat · RHEL 8.4 EUS Long Life rhel_eus_long_life:8.4::baseos	samba-test-libs-debuginfo	0:4.13.3-12.el8_4.1
Red Hat · RHEL 8.4 EUS Long Life rhel_eus_long_life:8.4::baseos	samba-vfs-glusterfs-debuginfo	0:4.13.3-12.el8_4.1
Red Hat · RHEL 8.4 EUS Long Life rhel_eus_long_life:8.4::baseos	samba-winbind	0:4.13.3-12.el8_4.1
Red Hat · RHEL 8.4 EUS Long Life rhel_eus_long_life:8.4::baseos	samba-winbind-clients	0:4.13.3-12.el8_4.1
Red Hat · RHEL 8.4 EUS Long Life rhel_eus_long_life:8.4::baseos	samba-winbind-clients-debuginfo	0:4.13.3-12.el8_4.1
Red Hat · RHEL 8.4 EUS Long Life rhel_eus_long_life:8.4::baseos	samba-winbind-debuginfo	0:4.13.3-12.el8_4.1
Red Hat · RHEL 8.4 EUS Long Life rhel_eus_long_life:8.4::baseos	samba-winbind-krb5-locator	0:4.13.3-12.el8_4.1
Red Hat · RHEL 8.4 EUS Long Life rhel_eus_long_life:8.4::baseos	samba-winbind-krb5-locator-debuginfo	0:4.13.3-12.el8_4.1
Red Hat · RHEL 8.4 EUS Long Life rhel_eus_long_life:8.4::baseos	samba-winbind-modules	0:4.13.3-12.el8_4.1
Red Hat · RHEL 8.4 EUS Long Life rhel_eus_long_life:8.4::baseos	samba-winbind-modules-debuginfo	0:4.13.3-12.el8_4.1
Red Hat · RHEL 8.4 EUS Long Life rhel_eus_long_life:8.4::baseos	samba-winexe	0:4.13.3-12.el8_4.1
Red Hat · RHEL 8.4 EUS Long Life rhel_eus_long_life:8.4::baseos	samba-winexe-debuginfo	0:4.13.3-12.el8_4.1

Vulnerabilities 2

Critical 9.0

CVE-2026-4408 Public exploit EPSS 47%

Samba: remote code execution in samr

A flaw was found in Samba. A remote attacker can exploit a misconfiguration in Samba file servers and classic domain controllers that use the "check password script" feature. If this script is configured with the %u substitution character, the client-controll…

Red Hat Red Hat Enterprise Linux 9 Red Hat Enterprise Linux 8 Red Hat Enterprise Linux 6 Linux Debian Ubuntu Azure Linux Alpine

May 28, 2026
Critical 9.0

CVE-2026-4480 Public exploit Scanner template EPSS 29%

Samba: samba: remote code execution in printing subsystem via unescaped job description

A flaw was found in the Samba printing subsystem. Samba passes the client-controlled job description string to the command configured with the "print command" setting via the "%J" substitution character without escaping shell meta characters. A remote attacke…

Red Hat Red Hat Enterprise Linux 9 Red Hat Enterprise Linux 8 Red Hat Enterprise Linux 6 Linux Debian Ubuntu Azure Linux Alpine

May 26, 2026

References

article
https://access.redhat.com/security/updates/classification/#important
report
https://bugzilla.redhat.com/show_bug.cgi?id=2452232
report
https://bugzilla.redhat.com/show_bug.cgi?id=2479762
advisory
https://security.access.redhat.com/data/csaf/v2/advisories/2026/rhsa-2026_28058.json
report
https://access.redhat.com/security/cve/CVE-2026-4408
advisory
https://www.cve.org/CVERecord?id=CVE-2026-4408
advisory
https://nvd.nist.gov/vuln/detail/CVE-2026-4408
article
https://bugzilla.samba.org/show_bug.cgi?id=16034
report
https://access.redhat.com/security/cve/CVE-2026-4480
advisory
https://www.cve.org/CVERecord?id=CVE-2026-4480
advisory
https://nvd.nist.gov/vuln/detail/CVE-2026-4480
article
https://bugzilla.samba.org/show_bug.cgi?id=16033

Red Hat Security Advisory: samba security update

Fixed packages 86

Vulnerabilities 2

Samba: remote code execution in samr

Samba: samba: remote code execution in printing subsystem via unescaped job description

References