CVE-2026-1933
Samba: missing access check on reparse point operations
CVSS Score
7.1
EPSS Score
0.0%
EPSS Percentile
0th
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.
| CWE | CWE-284 |
| Vendor | red hat |
| Product | red hat enterprise linux 10 |
| Published | May 27, 2026 |
| Last Updated | Jul 15, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:H Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
Low
Availability
High
Affected Versions
Red Hat / Red Hat Enterprise Linux 10
All versions affected Red Hat / Red Hat Enterprise Linux 10.0 Extended Update Support
All versions affected Red Hat / Red Hat Enterprise Linux 8
All versions affected Red Hat / Red Hat Enterprise Linux 8
All versions affected Red Hat / Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support
All versions affected Red Hat / Red Hat Enterprise Linux 8.6 Extended Update Support Long-Life Add-On
All versions affected Red Hat / Red Hat Enterprise Linux 8.8 Telecommunications Update Service
All versions affected Red Hat / Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions
All versions affected Red Hat / Red Hat Enterprise Linux 9
All versions affected Red Hat / Red Hat Enterprise Linux 9
All versions affected Red Hat / Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions
All versions affected Red Hat / Red Hat Enterprise Linux 9.4 Update Services for SAP Solutions
All versions affected Red Hat / Red Hat Enterprise Linux 9.6 Extended Update Support
All versions affected Red Hat / Red Hat OpenShift Container Platform 4.19
All versions affected Red Hat / Red Hat Enterprise Linux 6
All versions affected Red Hat / Red Hat Enterprise Linux 6
All versions affected Red Hat / Red Hat Enterprise Linux 7
All versions affected References
access.redhat.com: https://access.redhat.com/errata/RHSA-2026:22644 access.redhat.com: https://access.redhat.com/errata/RHSA-2026:22963 access.redhat.com: https://access.redhat.com/errata/RHSA-2026:25049 access.redhat.com: https://access.redhat.com/errata/RHSA-2026:25979 access.redhat.com: https://access.redhat.com/errata/RHSA-2026:28053 access.redhat.com: https://access.redhat.com/errata/RHSA-2026:28054 access.redhat.com: https://access.redhat.com/errata/RHSA-2026:28055 access.redhat.com: https://access.redhat.com/errata/RHSA-2026:28056 access.redhat.com: https://access.redhat.com/errata/RHSA-2026:28057 access.redhat.com: https://access.redhat.com/errata/RHSA-2026:29863 access.redhat.com: https://access.redhat.com/security/cve/CVE-2026-1933 bugzilla.redhat.com: https://bugzilla.redhat.com/show_bug.cgi?id=2447317 bugzilla.samba.org: https://bugzilla.samba.org/show_bug.cgi?id=15992 security.access.redhat.com: https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-1933.json
Credits
Red Hat would like to thank Asim Viladi Oglu Manizada for reporting this issue.