RLSA-2026:39576

Synopsis

Important: cifs-utils security, bug fix, and enhancement update

Description

The SMB/CIFS protocol is a standard file sharing protocol widely deployed on Microsoft Windows machines. The cifs-utils packages contain tools for mounting shares on Linux using the SMB/CIFS protocol. The tools in this package work in conjunction with support in the kernel to allow one to mount a SMB/CIFS share onto a client and use it as if it were a standard Linux file system.

Security Fix(es):

* cifs-utils: local privilege escalation via forged cifs.spnego key description in cifs.upcall (CVE-2026-12505)

Bug Fix(es) and Enhancement(s):

* cifs-utils: regression with kerberos mount [rhel-9.8.z] (JIRA:Rocky Linux-192982)

For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

Affected products

Rocky Linux 9 aarch64 Rocky Linux 9 ppc64le Rocky Linux 9 s390x Rocky Linux 9 x86_64

Fixes

2489805

CVEs

CVE-2026-12505

Affected packages

Rocky Linux 9 aarch64 - BaseOS

cifs-utils-0:7.6-2.el9_8.aarch64.rpm cifs-utils-0:7.6-2.el9_8.src.rpm cifs-utils-debuginfo-0:7.6-2.el9_8.aarch64.rpm cifs-utils-debugsource-0:7.6-2.el9_8.aarch64.rpm

Rocky Linux 9 ppc64le - BaseOS

cifs-utils-0:7.6-2.el9_8.ppc64le.rpm cifs-utils-0:7.6-2.el9_8.src.rpm cifs-utils-debuginfo-0:7.6-2.el9_8.ppc64le.rpm cifs-utils-debugsource-0:7.6-2.el9_8.ppc64le.rpm

Rocky Linux 9 s390x - BaseOS

cifs-utils-0:7.6-2.el9_8.s390x.rpm cifs-utils-0:7.6-2.el9_8.src.rpm cifs-utils-debuginfo-0:7.6-2.el9_8.s390x.rpm cifs-utils-debugsource-0:7.6-2.el9_8.s390x.rpm

Rocky Linux 9 x86_64 - BaseOS

cifs-utils-0:7.6-2.el9_8.src.rpm cifs-utils-0:7.6-2.el9_8.x86_64.rpm cifs-utils-debuginfo-0:7.6-2.el9_8.x86_64.rpm cifs-utils-debugsource-0:7.6-2.el9_8.x86_64.rpm

Rocky Linux 9 x86_64 - CRB

cifs-utils-debugsource-0:7.6-2.el9_8.i686.rpm cifs-utils-devel-0:7.6-2.el9_8.i686.rpm cifs-utils-devel-0:7.6-2.el9_8.x86_64.rpm

Rocky Linux 9 aarch64 - CRB

cifs-utils-devel-0:7.6-2.el9_8.aarch64.rpm

Rocky Linux 9 ppc64le - CRB

cifs-utils-devel-0:7.6-2.el9_8.ppc64le.rpm

Rocky Linux 9 s390x - CRB

cifs-utils-devel-0:7.6-2.el9_8.s390x.rpm

Rocky Linux 9 aarch64 - AppStream

pam_cifscreds-0:7.6-2.el9_8.aarch64.rpm pam_cifscreds-debuginfo-0:7.6-2.el9_8.aarch64.rpm

Rocky Linux 9 ppc64le - AppStream

pam_cifscreds-0:7.6-2.el9_8.ppc64le.rpm pam_cifscreds-debuginfo-0:7.6-2.el9_8.ppc64le.rpm

Rocky Linux 9 s390x - AppStream

pam_cifscreds-0:7.6-2.el9_8.s390x.rpm pam_cifscreds-debuginfo-0:7.6-2.el9_8.s390x.rpm

Rocky Linux 9 x86_64 - AppStream

pam_cifscreds-0:7.6-2.el9_8.x86_64.rpm pam_cifscreds-debuginfo-0:7.6-2.el9_8.x86_64.rpm