7.1
High
CVE-2026-1933 Samba: missing access check on reparse point operations
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.
CVSS 3.1 detail
Vector CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:HExploitable remotely over the network, with an ordinary account and without any user action; an attacker can seriously compromise confidentiality, integrity or availability.
- Attack vector
- Network
- Attack complexity
- Low
- Privileges required
- Low
- Interaction
- None
- Scope
- Unchanged
- Confidentiality
- None
- Integrity
- Low
- Availability
- High
Affected products and versions
| Product | Affected versions | Fixed in |
|---|---|---|
| Red Hat Enterprise Linux 10 | Versions not published | |
| Red Hat Enterprise Linux 6 | Versions not published | |
| Red Hat Enterprise Linux 7 | Versions not published | |
| Red Hat Enterprise Linux 8 | Versions not published | |
| Red Hat Enterprise Linux 9 | Versions not published | |
| Red Hat OpenShift Container Platform 4 | Versions not published | |
| Red Hat Enterprise Linux 9.6 Extended Update Support | Versions not published | |
| Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support | Versions not published | |
| Red Hat Enterprise Linux 8.6 Extended Update Support Long-Life Add-On | Versions not published |
Show the 48 other branches Hide the 48 other branches
References
- RHSA-2026:22644 access.redhat.com
- RHSA-2026:22963 access.redhat.com
- RHSA-2026:25049 access.redhat.com
- RHSA-2026:25979 access.redhat.com
- RHSA-2026:28053 access.redhat.com
- RHSA-2026:28054 access.redhat.com
- RHSA-2026:28055 access.redhat.com
- RHSA-2026:28056 access.redhat.com
- RHSA-2026:28057 access.redhat.com
- RHSA-2026:29863 access.redhat.com
- RHSA-2026:54581 access.redhat.com
- RHSA-2026:54599 access.redhat.com
- RHSA-2026:54769 access.redhat.com
- RHSA-2026:56786 access.redhat.com
- RHSA-2026:56853 access.redhat.com
- RHSA-2026:56911 access.redhat.com
- RHSA-2026:57483 access.redhat.com
- RHSA-2026:59831 access.redhat.com
- RHSA-2026:60019 access.redhat.com
- RHSA-2026:65839 access.redhat.com
- access.redhat.com access.redhat.com
- RHBZ#2447317 bugzilla.redhat.com
- bugzilla.samba.org bugzilla.samba.org
Timeline
- Published
- Last modified
Other CVEs of Red Hat Enterprise Linux 10
The 1455 CVEs of Red Hat Enterprise Linux 10 →
CVE-2026-120749
Dbus: dbus-daemon: dbus-daemon aborts (reply_serial != 0) when a broadcast from the driver cannot be delivered to a monitored bus
6.2
Medium
CVE-2026-123151
Gdb: gdb: stack buffer overflow in parse_tsv_definition via stale rs->buf tail
Not rated
CVE-2026-121997
Gdb: gdbserver: heap buffer overflow in cmd_qtdpsrc via qtdpsrc declared/actual length mismatch
8.1
High
CVE-2026-121996
Gdb: gdbserver: heap disclosure and wild pointer in gdb_parse_agent_expr via untrusted agent-expression length
8.2
High