{"id":"CVE-2026-11792","title":"389-ds-base: 389-ds-base: heap buffer overflow in audit log password masking (create_masked_entry_string)","summary":"A heap buffer overflow flaw was found in 389 Directory Server. When audit logging is enabled, the create_masked_entry_string() function in auditlog.c copies a fixed-length password mask into a precisely-sized heap buffer without checking…","severity":"low","cvss":3.3,"cvssVector":"CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:N/I:L/A:L","cvssSource":"cna","cwe":["CWE-122"],"vendor":"Red Hat","product":"redhat-ds:11/389-ds-base","affected":["redhat-ds:11/389-ds-base","redhat-ds:12/389-ds-base (all versions)","389-ds-base (all versions)","389-ds-base (all versions)","389-ds-base","389-ds-base","389-ds-base","389-ds-base (all versions)"],"ssvc":{"exploitation":"none","automatable":"no","technicalImpact":"partial","timestamp":"2026-06-09T13:35:23.576447Z"},"published":"2026-06-09","updated":"2026-11-06","sourceUpdated":"2026-11-06T17:50:52.406Z","source":"CVEORG","sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-11792","references":[{"url":"https://access.redhat.com/errata/RHBA-2025:15534"},{"url":"https://access.redhat.com/security/cve/CVE-2026-11792"},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2484915","label":"RHBZ#2484915"}],"tags":["cve.org"],"epss":0.00258,"epssPercentile":0.17586,"ingestedAt":"2026-11-06T18:00:12.499Z","slug":"CVE-2026-11792","body":"## Overview\n\nA heap buffer overflow flaw was found in 389 Directory Server. When audit logging is enabled, the create_masked_entry_string() function in auditlog.c copies a fixed-length password mask into a precisely-sized heap buffer without checking available space. If a short cleartext password is logged (requiring non-default CLEAR password storage or a compromised replication peer), the copy overflows the buffer, corrupting heap memory and audit log output.\n\n## Affected\n\n- `redhat-ds:11/389-ds-base`\n- `redhat-ds:12/389-ds-base (all versions)`\n- `389-ds-base (all versions)`\n- `389-ds-base (all versions)`\n- `389-ds-base`\n- `389-ds-base`\n- `389-ds-base`\n- `389-ds-base (all versions)`\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.\n\n### Workarounds\n\nDo not use passwordStorageScheme=CLEAR (default PBKDF2-SHA512 produces hashes longer than 23 bytes). Disable audit logging if not required. Monitor replication agreements for unauthorized peers.","depth":"sunlit","depthScore":18,"depthScoreParts":{"impact":18.2,"likelihood":0.1,"exploitation":0,"ransomware":0},"changes":[]}