CVE-2026-1933 HIGH

CVE-2026-1933: Samba: missing access check on reparse point operations

Vendor Red Hat
Product Red Hat Enterprise Linux 6
Weakness CWE-284
Published May 27, 2026
Last update June 30, 2026

CVSS base score

7.1/10
Attack vector Network
Attack complexity Low
Privileges required Low
User interaction None
Confidentiality None
Integrity Low

CVSS vector

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

What the vulnerability does

01Description

A flaw was found in Samba’s handling of NTFS-style reparse points on shares configured with read only = yes. Due to missing SMB-layer access checks, authenticated users with underlying filesystem write permissions may create or delete reparse point metadata through SMB operations even on read-only exports. This could allow modification of SMB-visible file behavior, including converting files into symbolic links or other reparse point types.

Key dates

02Disclosure timeline

May 27, 2026 CVE published
June 30, 2026 Record updated