cve-2026-2340
MEDIUM CVSS 6.5 nvd
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.
Timeline
- Published
- 2026-05-27
- Last Modified
- 2026-09-28
CVSS Details
- Attack Vector
- NETWORK
- Attack Complexity
- LOW
- Privileges Required
- LOW
Affected Products
- redhat openshift_container_platform
- samba samba
- redhat enterprise_linux
Weaknesses (CWE)
CVSS metrics
| Version | Base | Severity | Vector | Exploitability | Impact | Source |
|---|---|---|---|---|---|---|
| 3.1 | 6.5 | MEDIUM | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N |
2.8 | 3.6 | secalert@redhat.com |
CPE configurations
OR
| CPE | Version range | Vulnerable |
|---|---|---|
cpe:2.3:a:redhat:openshift_container_platform:4.0:*:*:*:*:*:*:* |
— | yes |
cpe:2.3:a:samba:samba:*:*:*:*:*:*:*:* |
>= 4.1.0 | yes |
cpe:2.3:o:redhat:enterprise_linux:7.0:*:*:*:*:*:*:* |
— | yes |
cpe:2.3:o:redhat:enterprise_linux:8.0:*:*:*:*:*:*:* |
— | yes |
cpe:2.3:o:redhat:enterprise_linux:9.0:*:*:*:*:*:*:* |
— | yes |
cpe:2.3:o:redhat:enterprise_linux:10.0:*:*:*:*:*:*:* |
— | yes |
NVD metadata
- NVD status
- Modified
- Source identifier
secalert@redhat.com
References
- https://access.redhat.com/errata/RHSA-2026:22644
- https://access.redhat.com/errata/RHSA-2026:22963
- https://access.redhat.com/errata/RHSA-2026:25049
- https://access.redhat.com/errata/RHSA-2026:25979
- https://access.redhat.com/errata/RHSA-2026:28053
- https://access.redhat.com/errata/RHSA-2026:28054
- https://access.redhat.com/errata/RHSA-2026:28055
- https://access.redhat.com/errata/RHSA-2026:28056
- https://access.redhat.com/errata/RHSA-2026:28057
- https://access.redhat.com/errata/RHSA-2026:29863
- https://access.redhat.com/errata/RHSA-2026:56786
- https://access.redhat.com/errata/RHSA-2026:56853
- https://access.redhat.com/errata/RHSA-2026:56911
- https://access.redhat.com/errata/RHSA-2026:57483
- https://access.redhat.com/errata/RHSA-2026:59831
- https://access.redhat.com/errata/RHSA-2026:60019
- https://access.redhat.com/errata/RHSA-2026:62409
- https://access.redhat.com/errata/RHSA-2026:62549
- https://access.redhat.com/errata/RHSA-2026:65839
- https://access.redhat.com/errata/RHSA-2026:65851
- https://access.redhat.com/errata/RHSA-2026:65907
- https://access.redhat.com/errata/RHSA-2026:67857
- https://access.redhat.com/security/cve/CVE-2026-2340 Mitigation, Third Party Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=2447318 Issue Tracking, Third Party Advisory
- https://bugzilla.samba.org/show_bug.cgi?id=15997 Issue Tracking, Vendor Advisory
Linked Vulnerabilities
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Enrichment data
Aggregated bundle (all enrichments)