SB20261023214 - Incorrect authorization in Samba
Published: October 23, 2026
Security Bulletin ID
SB20261023214
CSH Severity
Low
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Remote access
Highest impact
Information disclosure
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 vulnerability.
1) Incorrect authorization (CVE-ID: CVE-2026-109411)
CWE-ID: CWE-863 - Incorrect Authorization
CVSSv4: 5.3 [CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N]
The vulnerability allows a remote user to bypass access controls and potentially gain unauthorized access to files.
The vulnerability exists due to improper access control in Samba's vfs_ceph_rgw module when handling case-insensitive file-open requests. A remote user can use case-insensitive file-open operations to bypass access restrictions and potentially access otherwise restricted files.
Remediation
Install update from vendor's website.