CVE-2026-2340

Discovered by AISLEPUBLISHEDCWE-280

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 Base Scores

CVSS v3.1(Primary)
6.5

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N

Affected Products

VendorProductVersionStatus
Red HatSamba——

Credits

  • Red Hat would like to thank Pavel Kohout (Aisle Research) for reporting this issue.

References