A flaw was found in Samba's CTDB, the clustered database service used by Samba. Insufficient integrity validation of received CTDB protocol packets allows malformed packets containing invalid field lengths, improperly terminated strings, or inconsistent packet sizes to be processed without adequate bounds checking. A remote attacker with access to the CTDB private network may trigger a denial of service through process crashes or excessive memory consumption and, in limited cases, disclose adjacent memory contents.
CVE-2026-58224
CVSS base score
6.5 (v3.1)
Severity
MEDIUM
Attack vector
Adjacent_network
Weakness
CWE-353
Last modified
November 5, 2026
CVSS vector
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Affected products
samba samba
redhat enterprise linux
References
- access.redhat.com
- access.redhat.com Third Party Advisory
- bugzilla.redhat.com Issue Tracking, Third Party Advisory
- bugzilla.samba.org Issue Tracking, Mitigation, Vendor Advisory
- www.samba.org Mailing List, Vendor Advisory