{"id":"CVE-2026-18651","title":"A flaw was found in 389 Directory Server","summary":"A flaw was found in 389 Directory Server. During SASL PLAIN authentication, the server installs connection-level bind credentials before performing the account-lock check. If the account is subsequently found to be locked, the bind is re…","severity":"medium","cvss":5.4,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N","cwe":["CWE-287"],"vendor":"redhat","product":"directory_server","affected":["directory_server = 11.0","directory_server = 12.0","directory_server = 13.0","389_directory_server","enterprise_linux = 7.0","enterprise_linux = 8.0","enterprise_linux = 9.0","enterprise_linux = 10.0"],"published":"2026-08-03","updated":"2026-08-09","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-18651","references":[{"url":"https://access.redhat.com/security/cve/CVE-2026-18651","label":"secalert@redhat.com"},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2510617","label":"secalert@redhat.com"}],"tags":["nvd"],"epss":0.00167,"epssPercentile":0.06334,"ingestedAt":"2026-08-09T14:33:31.616Z","slug":"CVE-2026-18651","body":"## Overview\n\nA flaw was found in 389 Directory Server. During SASL PLAIN authentication, the server installs connection-level bind credentials before performing the account-lock check. If the account is subsequently found to be locked, the bind is reported as failed to the client, but the already-installed authenticated state on the connection is not reverted. A client that supplies valid credentials for an account that has been administratively locked can continue to use the same connection with that account's privileges, defeating account lock as an access-revocation control.\n\n## Affected\n\n- `directory_server = 11.0`\n- `directory_server = 12.0`\n- `directory_server = 13.0`\n- `389_directory_server`\n- `enterprise_linux = 7.0`\n- `enterprise_linux = 8.0`\n- `enterprise_linux = 9.0`\n- `enterprise_linux = 10.0`\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"sunlit","depthScore":30,"depthScoreParts":{"impact":29.7,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}