CVE-2026-1933

7.1 HIGH

A flaw was found in Samba’s handling of NTFS-style reparse points on shares configured with read only = yes

Published: 2026-05-27 · Last updated: 2026-06-10

Severity and scoring

CVSS: 7.1 HIGH
Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:H
CWE: CWE-284

Affected products

Vendor	Product
redhat	enterprise_linux, openshift_container_platform, samba
samba	enterprise_linux, openshift_container_platform, samba

Description

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.

Source: NVD

References

[NVD]https://nvd.nist.gov/vuln/detail/CVE-2026-1933
[Other]https://access.redhat.com/errata/RHSA-2026:22963
[Other]https://access.redhat.com/errata/RHSA-2026:25049
[Other]https://access.redhat.com/security/cve/CVE-2026-1933
[Other]https://bugzilla.redhat.com/show_bug.cgi?id=2447317
[Vendor advisory]https://bugzilla.samba.org/show_bug.cgi?id=15992

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