{"id":"CVE-2026-11786","title":"389-ds-base: 389-ds-base: heap out-of-bounds read in ldif parser str2entry_state_information_from_type()","summary":"A flaw was found in 389 Directory Server. The LDIF parser reads past the end of a heap buffer when processing attribute types with trailing semicolons during database import, causing an out-of-bounds read detectable under memory instrume…","severity":"low","cvss":1.9,"cvssVector":"CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:L/I:N/A:N","cvssSource":"cna","cwe":["CWE-125"],"vendor":"Red Hat","product":"redhat-ds:11/389-ds-base","affected":["redhat-ds:11/389-ds-base (all versions)","redhat-ds:12/389-ds-base (all versions)","389-ds-base (all versions)","389-ds-base (all versions)","389-ds-base","389-ds-base (all versions)","389-ds-base (all versions)","389-ds-base (all versions)"],"ssvc":{"exploitation":"none","automatable":"no","technicalImpact":"partial","timestamp":"2026-06-09T13:37:04.724370Z"},"published":"2026-06-09","updated":"2026-11-06","sourceUpdated":"2026-11-06T17:50:49.736Z","source":"CVEORG","sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-11786","references":[{"url":"https://access.redhat.com/security/cve/CVE-2026-11786"},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2485426","label":"RHBZ#2485426"}],"tags":["cve.org"],"epss":0.0016,"epssPercentile":0.05188,"ingestedAt":"2026-11-06T18:00:12.499Z","slug":"CVE-2026-11786","body":"## Overview\n\nA flaw was found in 389 Directory Server. The LDIF parser reads past the end of a heap buffer when processing attribute types with trailing semicolons during database import, causing an out-of-bounds read detectable under memory instrumentation.\n\n## Affected\n\n- `redhat-ds:11/389-ds-base (all versions)`\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 (all versions)`\n- `389-ds-base (all versions)`\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\nValidate LDIF files for malformed attribute types before importing. Reject any LDIF entry containing attribute types with trailing semicolons (e.g., userCertificate;binary;). Pre-import validation: grep -nE '^[a-zA-Z][a-zA-Z0-9-]*;[^:]*;:' input.ldif && echo \"REJECT: trailing semicolon in attribute type\". This does not protect against the replication changelog path (corrupted stored data), but that path requires pre-existing database corruption, not external input.","depth":"sunlit","depthScore":10,"depthScoreParts":{"impact":10.5,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}