A flaw was found in Samba’s vfs_worm module. The module is intended to provide write-once, read-many (WORM) protections by preventing modification of files after a configurable grace period. Due to insufficient validation during rename operations, an authenticated user with write access to a share could overwrite a protected file by renaming a newly created file over the existing WORM-protected file.
History

Thu, 04 Jun 2026 00:15:00 +0000

Type Values Removed Values Added
CPEs cpe:/o:redhat:enterprise_linux:10 cpe:/o:redhat:enterprise_linux:10.2
References

Fri, 29 May 2026 16:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Thu, 28 May 2026 15:45:00 +0000

Type Values Removed Values Added
First Time appeared Redhat openshift Container Platform
Samba
Samba samba
CPEs cpe:2.3:a:redhat:openshift_container_platform:4.0:*:*:*:*:*:*:*
cpe:2.3:a:samba:samba:*:*:*:*:*:*:*:*
cpe:2.3:o:redhat:enterprise_linux:10.0:*:*:*:*:*:*:*
cpe:2.3:o:redhat:enterprise_linux:7.0:*:*:*:*:*:*:*
cpe:2.3:o:redhat:enterprise_linux:8.0:*:*:*:*:*:*:*
cpe:2.3:o:redhat:enterprise_linux:9.0:*:*:*:*:*:*:*
Vendors & Products Redhat openshift Container Platform
Samba
Samba samba

Thu, 28 May 2026 00:15:00 +0000

Type Values Removed Values Added
References
Metrics threat_severity

None

threat_severity

Moderate


Wed, 27 May 2026 14:15:00 +0000

Type Values Removed Values Added
Description A flaw was found in Samba’s vfs_worm module. The module is intended to provide write-once, read-many (WORM) protections by preventing modification of files after a configurable grace period. Due to insufficient validation during rename operations, an authenticated user with write access to a share could overwrite a protected file by renaming a newly created file over the existing WORM-protected file.
Title Samba: vfs_worm does not block directory modification
First Time appeared Redhat
Redhat enterprise Linux
Redhat openshift
Weaknesses CWE-280
CPEs cpe:/a:redhat:openshift:4
cpe:/o:redhat:enterprise_linux:10
cpe:/o:redhat:enterprise_linux:6
cpe:/o:redhat:enterprise_linux:7
cpe:/o:redhat:enterprise_linux:8
cpe:/o:redhat:enterprise_linux:9
Vendors & Products Redhat
Redhat enterprise Linux
Redhat openshift
References
Metrics cvssV3_1

{'score': 6.5, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N'}


cve-icon MITRE

Status: PUBLISHED

Assigner: redhat

Published: 2026-05-27T12:09:32.601Z

Updated: 2026-06-04T00:08:03.105Z

Reserved: 2026-02-11T12:29:16.340Z

Link: CVE-2026-2340

cve-icon Vulnrichment

Updated: 2026-05-29T15:35:55.473Z

cve-icon NVD

Status : Modified

Published: 2026-05-27T14:16:44.387

Modified: 2026-06-04T00:16:59.340

Link: CVE-2026-2340

cve-icon Redhat

Severity : Moderate

Publid Date: 2026-05-27T10:35:47Z

Links: CVE-2026-2340 - Bugzilla