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Samba: missing access check on reparse point operations (Red Hat Red Hat Enterprise Linux 10)

CVE-2026-1933
HIGH 7.1

At a glance

Source
NVD
EPSS
EPSS 0.86 % · percentile 58 ()
State
PUBLISHED
Published
Updated
Assigner
redhat
NVD status
Modified

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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.

Weaknesses (CWE)

  • CWE-284 — Improper Access Control

References

Scores

VersionScoreVectorScored by
CVSS 3.1HIGH 7.1CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:Hredhat
CVSS 3.1HIGH 7.1CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:Hredhat-SADP
CVSS 3.1HIGH 7.1CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:HNVD · secalert@redhat.com (Secondary)
CVSS 3.1MEDIUM 6.5CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:NNVD · nvd@nist.gov (Primary)
CVSS 3.1HIGH 7.1CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:HNVD · 0b0ca135-0b70-47e7-9f44-1890c2a1c46c (Secondary)

European references

CERT-FR advisories

Affected configurations (NVD CPE)

Affected products

ProductVersions
Red Hat · Red Hat Enterprise Linux 10unaffected 0:4.23.5-109.el10_2 < *
Red Hat · Red Hat Enterprise Linux 10.0 Extended Update Supportunaffected 0:4.21.3-114.el10_0.1 < *
Red Hat · Red Hat Enterprise Linux 8unaffected 0:4.19.4-16.el8_10 < *
Red Hat · Red Hat Enterprise Linux 8unaffected 0:4.19.4-16.el8_10 < *
Red Hat · Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Supportunaffected 0:4.15.5-16.el8_6.1 < *
Red Hat · Red Hat Enterprise Linux 8.6 Extended Update Support Long-Life Add-Onunaffected 0:4.15.5-16.el8_6.1 < *
Red Hat · Red Hat Enterprise Linux 8.8 Telecommunications Update Serviceunaffected 0:4.17.5-7.el8_8.1 < *
Red Hat · Red Hat Enterprise Linux 8.8 Update Services for SAP Solutionsunaffected 0:4.17.5-7.el8_8.1 < *
Red Hat · Red Hat Enterprise Linux 9unaffected 0:4.23.5-10.el9_8 < *
Red Hat · Red Hat Enterprise Linux 9unaffected 0:4.23.5-10.el9_8 < *
Red Hat · Red Hat Enterprise Linux 9.2 Update Services for SAP Solutionsunaffected 0:4.17.5-105.el9_2.5 < *
Red Hat · Red Hat Enterprise Linux 9.4 Update Services for SAP Solutionsunaffected 0:4.19.4-105.el9_4.4 < *
Red Hat · Red Hat Enterprise Linux 9.6 Extended Update Supportunaffected 0:4.21.3-14.el9_6.1 < *
Red Hat · Red Hat OpenShift Container Platform 4.12unaffected 412.86.202608241157-0 < *
Red Hat · Red Hat OpenShift Container Platform 4.13unaffected 413.92.202609080414-0 < *
Red Hat · Red Hat OpenShift Container Platform 4.14unaffected 414.92.202608172040-0 < *
Red Hat · Red Hat OpenShift Container Platform 4.15unaffected 415.92.202608180329-0 < *
Red Hat · Red Hat OpenShift Container Platform 4.16unaffected 416.94.202608150307-0 < *
Red Hat · Red Hat OpenShift Container Platform 4.17unaffected 417.94.202608250221-0 < *
Red Hat · Red Hat OpenShift Container Platform 4.18unaffected 418.94.202608142238-0 < *

Sources

SourceLicence
CVE List (CVEProject cvelistV5)CVE Program Terms of Use
EPSS (FIRST.org)FIRST — attribution requested
ENISA EUVDENISA — reproduction authorised, source acknowledged
CERT-FR (ANSSI)Licence Ouverte / Etalab 2.0
NVD (NIST) via fkie-cad/nvd-json-data-feedsPublic domain — this product uses data from the NVD API but is not endorsed or certified by the NVD