CVE-2026-18922
criticalpriority · track · 39EPSS 0.006 · 46 %ileDEUSEPSS · scored 2026-10-27
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 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.
cvss
Technical severity, 0–10. One row per scoring source.
base score 0–10 · higher = more severe · hover a vector to decode
ssvc
A stakeholder decision — act, attend, or track — from exploitation and impact.
weaknesses
The CWE weakness classes this flaw belongs to.
affected products (17)
Products and version ranges known to be affected.
- Red Hat Directory Server 11.7 E4S for RHEL 8all versionscert_bundDEcpe:/a:redhat:directory_server:11.7_e4s_for_rhel_8
- Red Hat Directory Server 11.9 for RHEL 8all versionscert_bundDEcpe:/a:redhat:directory_server:11.9_for_rhel_8
- Red Hat Directory Server 12.2 E4S for RHEL 9all versionscert_bundDEcpe:/a:redhat:directory_server:12.2_e4s_for_rhel_9
- Red Hat Directory Server 12.4 E4S for RHEL 9all versionscert_bundDEcpe:/a:redhat:directory_server:12.4_e4s_for_rhel_9
- Red Hat Enterprise Linux 7 Extended Lifecycle Supportall versionscert_bundDEcpe:/o:redhat:enterprise_linux:7_extended_lifecycle_support
- Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Supportall versionscert_bundDEcpe:/o:redhat:enterprise_linux:8.4_advanced_mission_critical_update_support
- Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-Onall versionscert_bundDEcpe:/o:redhat:enterprise_linux:8.4_extended_update_support_long-life_add-on
- Red Hat Enterprise Linux 8.8 Telecommunications Update Serviceall versionscert_bundDEcpe:/o:redhat:enterprise_linux:8.8_telecommunications_update_service
- Red Hat Enterprise Linux 8.8 Update Services for SAPall versionscert_bundDEcpe:/o:redhat:enterprise_linux:8.8_update_services_for_sap
- Red Hat Enterprise Linux 9.2 Update Services for SAP Solutionsall versionscert_bundDEcpe:/o:redhat:enterprise_linux:9.2_update_services_for_sap_solutions
- Red Hat Enterprise Linux 9.4 Update Services for SAP Solutionsall versionscert_bundDEcpe:/o:redhat:enterprise_linux:9.4_update_services_for_sap_solutions
advisories (1)
Vendor and ecosystem advisories describing this.
- WID-SEC-W-2026-3215Red Hat Directory Server und Enterprise Linux (389-ds-base): Mehrere SchwachstellenDeutsch2026-09-07csaf · cert_bundDE
Ein Angreifer kann mehrere Schwachstellen in Red Hat Directory Server und Red Hat Enterprise Linux ausnutzen, um beliebigen Code auszuführen, Administratorrechte zu erlangen, Daten zu manipulieren oder einen Denial-of-Service-Zustand auszulösen.
sources
Which sources assert this record, and when.
references (19) nvd
External citations — patches, advisories, analysis.
- https://access.redhat.com/errata/RHSA-2026:64771
- https://access.redhat.com/errata/RHSA-2026:64776
- https://access.redhat.com/errata/RHSA-2026:64778
- https://access.redhat.com/errata/RHSA-2026:64779
- https://access.redhat.com/errata/RHSA-2026:64780
- https://access.redhat.com/errata/RHSA-2026:64781
- https://access.redhat.com/errata/RHSA-2026:64783
- https://access.redhat.com/errata/RHSA-2026:64784
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