{"id":"CVE-2026-18922","title":"A flaw was found in 389 Directory Server","summary":"A flaw was found in 389 Directory Server. During SASL PLAIN authentication, a stale identity carried in a Cyrus SASL auxiliary property from a prior failed bind attempt can be installed on a connection following a subsequent, unrelated s…","severity":"critical","cvss":9.8,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","cwe":["CWE-287"],"vendor":"Red Hat","product":"redhat-ds:11","affected":["redhat-ds:11 (all versions)","redhat-ds:11 (all versions)","redhat-ds:12 (all versions)","redhat-ds:12 (all versions)","389-ds-base (all versions)","389-ds-base (all versions)","389-ds-base (all versions)","389-ds-base (all versions)","389-ds:1.4 (all versions)","389-ds:1.4 (all versions)","389-ds:1.4 (all versions)","389-ds:1.4 (all versions)","389-ds:1.4 (all versions)","389-ds:1.4 (all versions)","389-ds:1.4 (all versions)","389-ds-base (all versions)","389-ds-base (all versions)","389-ds-base (all versions)","389-ds-base (all versions)","389-ds-base (all versions)","389-ds-base"],"patched":["enterprise_linux_server_extension_v_6_els_extension","enterprise_linux_server_optional_extension_v_6_els_extension","enterprise_linux_server_v_7_els","enterprise_linux_server_optional_v_7_els","directory_server_11_9_for_rhel 8","enterprise_linux_appstream_eus_v_10_0","enterprise_linux_appstream_v_10","enterprise_linux_appstream_v_8","enterprise_linux_appstream_aus_v_8_4","enterprise_linux_appstream_eus_extension_v_8_4","enterprise_linux_appstream_aus_v_8_6","enterprise_linux_appstream_eus_extension_v_8_6","enterprise_linux_appstream_e4s_v_8_8","enterprise_linux_appstream_tus_v_8_8","enterprise_linux_appstream_e4s_v_9_2","enterprise_linux_appstream_e4s_v_9_4","enterprise_linux_appstream_eus_v_9_6","enterprise_linux_appstream_v_9","directory_server_11_7_e4s_for_rhel 8","directory_server_12_2_e4s_for_rhel 9","directory_server_12_4_e4s_for_rhel 9","enterprise_linux_codeready_linux_builder_eus_v_10_0","enterprise_linux_codeready_linux_builder_v_10","codeready_linux_builder_eus_v_9_6","enterprise_linux_codeready_linux_builder_v_9"],"published":"2026-09-07","updated":"2026-09-08","sourceUpdated":"2026-09-08T19:08:15.590","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-18922","references":[{"url":"https://access.redhat.com/errata/RHSA-2026:64771","label":"secalert@redhat.com"},{"url":"https://access.redhat.com/errata/RHSA-2026:64776","label":"secalert@redhat.com"},{"url":"https://access.redhat.com/errata/RHSA-2026:64778","label":"secalert@redhat.com"},{"url":"https://access.redhat.com/errata/RHSA-2026:64779","label":"secalert@redhat.com"},{"url":"https://access.redhat.com/errata/RHSA-2026:64780","label":"secalert@redhat.com"},{"url":"https://access.redhat.com/errata/RHSA-2026:64781","label":"secalert@redhat.com"},{"url":"https://access.redhat.com/errata/RHSA-2026:64783","label":"secalert@redhat.com"},{"url":"https://access.redhat.com/errata/RHSA-2026:64784","label":"secalert@redhat.com"},{"url":"https://access.redhat.com/errata/RHSA-2026:64785","label":"secalert@redhat.com"},{"url":"https://access.redhat.com/errata/RHSA-2026:64789","label":"secalert@redhat.com"},{"url":"https://access.redhat.com/errata/RHSA-2026:64790","label":"secalert@redhat.com"},{"url":"https://access.redhat.com/errata/RHSA-2026:64791","label":"secalert@redhat.com"},{"url":"https://access.redhat.com/errata/RHSA-2026:64792","label":"secalert@redhat.com"},{"url":"https://access.redhat.com/errata/RHSA-2026:64793","label":"secalert@redhat.com"},{"url":"https://access.redhat.com/errata/RHSA-2026:64804","label":"secalert@redhat.com"},{"url":"https://access.redhat.com/errata/RHSA-2026:64811","label":"secalert@redhat.com"},{"url":"https://access.redhat.com/security/cve/CVE-2026-18922","label":"secalert@redhat.com"},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2511388","label":"secalert@redhat.com"},{"url":"https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-18922.json"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-18922"},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-18922"}],"tags":["nvd","cve.org","csaf","vex","red-hat"],"epss":0.0056,"epssPercentile":0.4543,"ssvc":{"exploitation":"none","automatable":"no","technicalImpact":"total","timestamp":"2026-09-08T13:04:02.842508Z"},"ingestedAt":"2026-09-08T15:33:26.978Z","slug":"CVE-2026-18922","body":"## Overview\n\nA flaw was found in 389 Directory Server. During SASL PLAIN authentication, a stale identity carried in a Cyrus SASL auxiliary property from a prior failed bind attempt can be installed on a connection following a subsequent, unrelated successful bind, regardless of which SASL mechanism completes that second bind. An attacker can send a SASL PLAIN bind as cn=Directory Manager with an incorrect password, then complete a SASL ANONYMOUS bind on the same connection, causing the server to grant Directory Manager authority without any valid credentials. A variant using a valid low-privileged account's own successful bind instead of an anonymous one is also possible.\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.\n\n## Vendor advisories\n\n- **RHSA-2026:64811** · Red Hat · fixed in: Red Hat Enterprise Linux Server -EXTENSION(v. 6 ELS-EXTENSION), Red Hat Enterprise Linux Server Optional -EXTENSION (v. 6 ELS -EXTENSION) · released 2026-09-08 · [advisory](https://access.redhat.com/errata/RHSA-2026:64811)\n- **RHSA-2026:64771** · Red Hat · fixed in: Red Hat Enterprise Linux Server (v. 7 ELS), Red Hat Enterprise Linux Server Optional (v. 7 ELS) · released 2026-09-08 · [advisory](https://access.redhat.com/errata/RHSA-2026:64771)\n- **RHSA-2026:64793** · Red Hat · fixed in: Red Hat Directory Server 11.9 for RHEL 8 · released 2026-09-08 · [advisory](https://access.redhat.com/errata/RHSA-2026:64793)\n- **RHSA-2026:64804** · Red Hat · fixed in: Red Hat Enterprise Linux AppStream EUS (v. 10.0), Red Hat Enterprise Linux CodeReady Linux Builder EUS (v. 10.0) · released 2026-09-08 · [advisory](https://access.redhat.com/errata/RHSA-2026:64804)\n- **RHSA-2026:64785** · Red Hat · fixed in: Red Hat Enterprise Linux AppStream (v. 10), Red Hat Enterprise Linux CodeReady Linux Builder (v. 10) · released 2026-09-08 · [advisory](https://access.redhat.com/errata/RHSA-2026:64785)\n- **RHSA-2026:64791** · Red Hat · fixed in: Red Hat Enterprise Linux AppStream (v. 8) · released 2026-09-08 · [advisory](https://access.redhat.com/errata/RHSA-2026:64791)\n- **RHSA-2026:64789** · Red Hat · fixed in: Red Hat Enterprise Linux AppStream AUS (v.8.4), Red Hat Enterprise Linux AppStream EUS EXTENSION (v.8.4) · released 2026-09-08 · [advisory](https://access.redhat.com/errata/RHSA-2026:64789)\n- **RHSA-2026:64790** · Red Hat · fixed in: Red Hat Enterprise Linux AppStream AUS (v.8.6), Red Hat Enterprise Linux AppStream EUS EXTENSION (v.8.6) · released 2026-09-08 · [advisory](https://access.redhat.com/errata/RHSA-2026:64790)\n- **RHSA-2026:64776** · Red Hat · fixed in: Red Hat Enterprise Linux AppStream E4S (v.8.8), Red Hat Enterprise Linux AppStream TUS (v.8.8) · released 2026-09-08 · [advisory](https://access.redhat.com/errata/RHSA-2026:64776)\n- **RHSA-2026:64778** · Red Hat · fixed in: Red Hat Enterprise Linux AppStream E4S (v.9.2) · released 2026-09-08 · [advisory](https://access.redhat.com/errata/RHSA-2026:64778)\n- **RHSA-2026:64781** · Red Hat · fixed in: Red Hat Enterprise Linux AppStream E4S (v.9.4) · released 2026-09-08 · [advisory](https://access.redhat.com/errata/RHSA-2026:64781)\n- **Red Hat VEX** · Critical · affected: Red Hat Directory Server 12 · no fix planned: Red Hat Directory Server 12 · updated 2026-09-08 · [vex](https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-18922.json)","depth":"midnight","depthScore":54,"depthScoreParts":{"impact":53.9,"likelihood":0.1,"exploitation":0,"ransomware":0},"changes":[]}