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CVE-2026-2340

medium

A flaw was found in Samba’s vfs_worm module.

Vendor / product: Redhat — openshift container platform

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
6.5
6.5 (CVSS v3.1)
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N
Severity source: NVD CVSS v3.1 (secalert@redhat.com)
Timeline (UTC)
Published: 2026-05-27 14:16
Modified: 2026-11-05 20:17
NVD status: Modified
Last synced 2 hours ago
Verified against the source API 2026-11-05 20:22 UTC
Exploitation
Not listed in CISA KEV (as of last catalog sync)
Absence from KEV does not mean a CVE is not exploited. Exploitation status: unknown (no authoritative evidence in our sources).

Affected products

redhat / openshift_container_platform 4.0
samba / samba ≥4.1.0
redhat / enterprise_linux 7.0, 8.0, 9.0, 10.0

Weakness classification (CWE)

CWE-280

Source: NVD / CISA. “NVD-CWE-Other” and “NVD-CWE-noinfo” mean NVD could not assign a specific weakness.

Mitigation & advisories

Vendor advisory: https://bugzilla.samba.org/show_bug.cgi?id=15997
Patch / mitigation: https://access.redhat.com/security/cve/CVE-2026-2340

References

Data sources

NVD CVE API 2.0 — fetched 2026-11-05 20:22 UTC · record ↗

Learn the basics

Understanding CVEs and CVSS Scores

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