Cifs-Utils Security Update — AlmaLinux 9 (ALSA-2026:39576)

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…

Type:

security

Severity:

important

Release date:

2026-07-16

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 [almalinux-9.8.z] (JIRA:AlmaLinux-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.

References:

• CVE-2026-12505
• RHSA-2026:39576
• ALSA-2026:39576

Updated packages listed below:

Notes:

This page is generated automatically from Red Hat security data and has not been checked for errors. For clarification or corrections please contact the AlmaLinux Packaging Team.