Vulnerability in Samba
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 insufficient validation during rename ope…
EPSS: 0.001 (20.3th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N.
Affected products
- Samba
- Red Hat Enterprise Linux 10 — versions 0:4.23.5-109.el10_2
- Red Hat Enterprise Linux 6
- Red Hat Enterprise Linux 7
- Red Hat Enterprise Linux 8
- Red Hat Enterprise Linux 9
- Red Hat Openshift Container Platform 4
- Redhat Enterprise_linux — versions 7.0, 8.0, 9.0
- Redhat Openshift_container_platform — versions 4.0
Weakness classification (CWE)
References
- secalert@redhat.com (x_refsource_REDHAT, Third Party Advisory, Mitigation, vdb-entry)
- secalert@redhat.com (x_refsource_REDHAT, issue-tracking, Third Party Advisory, Issue Tracking)
- secalert@redhat.com (Issue Tracking, Vendor Advisory)
- secalert@redhat.com (x_refsource_REDHAT, vendor-advisory)
Frequently asked questions
- What is CVE-2026-2340?
- CVE-2026-2340 is a medium-severity vulnerability in Samba, classified under Improper Handling of Insufficient Permissions or Privileges. CVSS score: 6.5/10. Published 2026-05-27.
- How severe is CVE-2026-2340?
- Medium severity. CVSS v3 base score is 6.5 out of 10.