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MEDIUM · 6.5

CVE-2026-2340

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 in...

Vulnerability 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.

CVSS Score

6.5

MEDIUM

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
HIGH
Availability
NONE

Affected Products

VendorProductVersions
RedhatOpenshift Container Platform4.0
SambaSamba>= 4.1.0
RedhatEnterprise Linux7.0

Related Weaknesses (CWE)

CWE-280

References

FAQ

What is CVE-2026-2340?

CVE-2026-2340 is a vulnerability with a CVSS score of 6.5 (MEDIUM). 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 in...

How severe is CVE-2026-2340?

CVE-2026-2340 has been rated MEDIUM with a CVSS base score of 6.5/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2026-2340?

Check the references section above for vendor advisories and patch information. Affected products include: Redhat Openshift Container Platform, Samba Samba, Redhat Enterprise Linux.