Description
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.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| Red Hat | Red Hat Directory Server 11.5 E4S for RHEL 8 | — | — |
| Red Hat | Red Hat Directory Server 11.7 E4S for RHEL 8 | — | — |
| Red Hat | Red Hat Directory Server 11.9 for RHEL 8 | — | — |
| Red Hat | Red Hat Directory Server 12.2 E4S for RHEL 9 | — | — |
| Red Hat | Red Hat Directory Server 12.4 E4S for RHEL 9 | — | — |
| Red Hat | Red Hat Enterprise Linux 10 | — | — |
| Red Hat | Red Hat Enterprise Linux 10.0 Extended Update Support | — | — |
| Red Hat | Red Hat Enterprise Linux 6 Extended Lifecycle Support - EXTENSION | — | — |
| Red Hat | Red Hat Enterprise Linux 7 Extended Lifecycle Support | — | — |
| Red Hat | Red Hat Enterprise Linux 8 | — | — |
| Red Hat | Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support | — | — |
| Red Hat | Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-On | — | — |
| Red Hat | Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support | — | — |
| Red Hat | Red Hat Enterprise Linux 8.6 Extended Update Support Long-Life Add-On | — | — |
| Red Hat | Red Hat Enterprise Linux 8.8 Telecommunications Update Service | — | — |
| Red Hat | Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions | — | — |
| Red Hat | Red Hat Enterprise Linux 9 | — | — |
| Red Hat | Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions | — | — |
| Red Hat | Red Hat Enterprise Linux 9.4 Update Services for SAP Solutions | — | — |
| Red Hat | Red Hat Enterprise Linux 9.6 Extended Update Support | — | — |
| Red Hat | Red Hat Directory Server 12 | — | — |
| Red Hat | Red Hat Directory Server 13 | — | — |
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
Debian
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian 13 | 389-ds-base | No fix yet | — |
| Debian 12 | 389-ds-base | No fix yet | — |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 26.10 | 389-ds-base | No fix yet | — |
| Ubuntu 26.04 LTS | 389-ds-base | No fix yet | — |
| Ubuntu 24.04 LTS | 389-ds-base | No fix yet | — |
| Ubuntu 22.04 LTS | 389-ds-base | No fix yet | — |
Show 3 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu Pro 20.04 LTS | 389-ds-base | No fix yet | — |
| Ubuntu Pro 18.04 LTS | 389-ds-base | No fix yet | — |
| Ubuntu Pro 16.04 LTS | 389-ds-base | No fix yet | — |
Red Hat
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 10 | 389-ds-base +5 | 3.2.0-10.el10_2 | RHSA-2026:64785 |
| RHEL 9 | 389-ds-base +4 | 2.8.0-10.el9_8 | RHSA-2026:64784 |
| RHEL 8 | 389-ds-base +5 | 1.4.3.39-28.module+el8.10.0+24822+205d20dc | RHSA-2026:64791 |
Show 15 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 10.0 EUS | 389-ds-base +5 | 3.0.6-21.el10_0 | RHSA-2026:64804 |
| RHEL 9.6 EUS | 389-ds-base +4 | 2.6.1-24.el9_6 | RHSA-2026:64783 |
| RHEL 9.4 E4S | 389-ds-base +2 | 2.4.5-29.el9_4 | RHSA-2026:64781 |
| RHEL 9.2 E4S | 389-ds-base +2 | 2.2.4-22.el9_2 | RHSA-2026:64778 |
| RHEL 8.8 TUS | 389-ds-base +5 | 1.4.3.35-21.module+el8.8.0+24788+bed99f90 | RHSA-2026:64776 |
| RHEL 8.8 E4S | 389-ds-base +5 | 1.4.3.35-21.module+el8.8.0+24788+bed99f90 | RHSA-2026:64776 |
| RHEL 8.6 EUS Long Life | 389-ds-base +5 | 1.4.3.34-12.module+el8.6.0+24796+4783e9a9 | RHSA-2026:64790 |
| RHEL 8.6 AUS | 389-ds-base +5 | 1.4.3.34-12.module+el8.6.0+24796+4783e9a9 | RHSA-2026:64790 |
| RHEL 8.4 EUS Long Life | 389-ds-base +5 | 1.4.3.34-7.module+el8.4.0+24797+f0b70e95 | RHSA-2026:64789 |
| RHEL 8.4 AUS | 389-ds-base +5 | 1.4.3.34-7.module+el8.4.0+24797+f0b70e95 | RHSA-2026:64789 |
| RHEL 7 ELS | 389-ds-base +3 | 1.3.11.1-15.el7_9 | RHSA-2026:64771 |
| RHEL 6 ELS | 389-ds-base +2 | 1.2.11.15-97.el6_10.1 | RHSA-2026:64811 |
| Red Hat Directory Server E4s 12 | 389-ds-base +5 | 2.2.7-18.module+el9dsrv+24814+6d9b6eb5 | RHSA-2026:64780, RHSA-2026:64779 |
| Red Hat Directory Server E4s 11 | 389-ds-base +6 | 1.4.3.34-9.module+el8dsrv+24847+c94540a6 | RHSA-2026:79217, RHSA-2026:64792 |
| Red Hat Directory Server 11 | 389-ds-base +6 | 1.4.3.39-28.module+el8dsrv+24826+9ffa737d | RHSA-2026:64793 |
AlmaLinux
Errata ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| AlmaLinux 10 | 389-ds-base +5 | 3.2.0-10.el10_2 | ALSA-2026:64785 |
| AlmaLinux 9 | 389-ds-base +4 | 2.8.0-10.el9_8 | ALSA-2026:64784 |
| AlmaLinux 8 | 389-ds-base +5 | 1.4.3.39-28.module_el8.10.0+4274+00f9a3f1 | ALSA-2026:64791 |
Rocky Linux
Errata ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Rocky Linux 10 | 389-ds-base | 3.2.0-10.el10_2 | RLSA-2026:64785 |
| Rocky Linux 9 | 389-ds-base | 2.8.0-10.el9_8 | RLSA-2026:64784 |
| Rocky Linux 8 | 389-ds-base | 1.4.3.39-28.module+el8.10.0+40311+cd962df1 | RLSA-2026:64791 |
SUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 15 SP7 | 389-ds | 2.8.2~git10.030ada7a6-150700.3.25.1 | SUSE-SU-2026:4380-1 |
| SLES 15 SP6 | 389-ds | 2.2.11~git12.1e612cde2-150600.8.38.1 | SUSE-SU-2026:4929-1 |
| SLES 15 SP5 | 389-ds | 2.2.11~git12.1e612cde2-150500.3.54.1 | SUSE-SU-2026:4932-1 |
Show 5 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES for SAP 16.0 | 389-ds | 3.0.7~git2.2846d5288-160000.1.1 | SUSE-SU-2026:23916-1 |
| SLES for SAP 15 SP6 | 389-ds | 2.2.11~git12.1e612cde2-150600.8.38.1 | SUSE-SU-2026:4929-1 |
| SLES for SAP 15 SP5 | 389-ds | 2.2.11~git12.1e612cde2-150500.3.54.1 | SUSE-SU-2026:4932-1 |
| SLES 16.0 | 389-ds | 3.0.7~git2.2846d5288-160000.1.1 | SUSE-SU-2026:23916-1 |
| SLE HPC 15 SP5 | 389-ds | 2.2.11~git12.1e612cde2-150500.3.54.1 | SUSE-SU-2026:4932-1 |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Tumbleweed | 389-ds | 3.3.1+8c2711bd6-1.1 | openSUSE-SU-2026:11739-1 |
| openSUSE Leap 16.0 | 389-ds | 3.0.7~git2.2846d5288-160000.1.1 | openSUSE-SU-2026:21950-1 |
Amazon Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Amazon Linux 2 | 389-ds-base +3 | 1.3.10.2-17.amzn2.0.9 | ALAS2-2026-3909 |
Azure Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Azure Linux 3 | 389-ds-base | No fix yet | — |
Advisories 31
- SUSE-SU-2026:4929-1 Security update for 389-ds SUSE / openSUSE Security Updates · Oct 31, 2026
- SUSE-SU-2026:4932-1 Security update for 389-ds SUSE / openSUSE Security Updates · Oct 31, 2026
- WID-SEC-2026-3215 Red Hat Directory Server und Enterprise Linux (389-ds-base): Mehrere Schwachstellen BSI CERT-Bund (WID) · Oct 29, 2026
- ALSA-2026:64784 Critical: 389-ds-base security, bug fix, and enhancement update AlmaLinux Security Advisories · Oct 29, 2026
- ALSA-2026:64785 Critical: 389-ds-base security, bug fix, and enhancement update AlmaLinux Security Advisories · Oct 29, 2026
- ALSA-2026:64791 Critical: 389-ds:1.4 security, bug fix, and enhancement update AlmaLinux Security Advisories · Oct 29, 2026
- RHSA-2026:79217 Red Hat Security Advisory: redhat-ds:11 security, bug fix, and enhancement update Red Hat Security Advisories (RHSA) · Oct 19, 2026
- RHSA-2026:64811 Red Hat Security Advisory: 389-ds-base security update Red Hat Security Advisories (RHSA) · Oct 19, 2026
- RHSA-2026:64793 Red Hat Security Advisory: redhat-ds:11 security, bug fix, and enhancement update Red Hat Security Advisories (RHSA) · Oct 19, 2026
- RHSA-2026:64804 Red Hat Security Advisory: 389-ds-base security, bug fix, and enhancement update Red Hat Security Advisories (RHSA) · Oct 19, 2026
- RHSA-2026:64792 Red Hat Security Advisory: redhat-ds:11 security, bug fix, and enhancement update Red Hat Security Advisories (RHSA) · Oct 19, 2026
- RHSA-2026:64791 Red Hat Security Advisory: 389-ds:1.4 security, bug fix, and enhancement update Red Hat Security Advisories (RHSA) · Oct 19, 2026
- RHSA-2026:64790 Red Hat Security Advisory: 389-ds:1.4 security, bug fix, and enhancement update Red Hat Security Advisories (RHSA) · Oct 19, 2026
- RHSA-2026:64789 Red Hat Security Advisory: 389-ds:1.4 security, bug fix, and enhancement update Red Hat Security Advisories (RHSA) · Oct 19, 2026
- RHSA-2026:64785 Red Hat Security Advisory: 389-ds-base security, bug fix, and enhancement update Red Hat Security Advisories (RHSA) · Oct 19, 2026
- RHSA-2026:64783 Red Hat Security Advisory: 389-ds-base security, bug fix, and enhancement update Red Hat Security Advisories (RHSA) · Oct 19, 2026
- RHSA-2026:64784 Red Hat Security Advisory: 389-ds-base security, bug fix, and enhancement update Red Hat Security Advisories (RHSA) · Oct 19, 2026
- RHSA-2026:64781 Red Hat Security Advisory: 389-ds-base security, bug fix, and enhancement update Red Hat Security Advisories (RHSA) · Oct 19, 2026
- RHSA-2026:64779 Red Hat Security Advisory: redhat-ds:12 security, bug fix, and enhancement update Red Hat Security Advisories (RHSA) · Oct 19, 2026
- RHSA-2026:64780 Red Hat Security Advisory: redhat-ds:12 security, bug fix, and enhancement update Red Hat Security Advisories (RHSA) · Oct 19, 2026
- RHSA-2026:64778 Red Hat Security Advisory: 389-ds-base security, bug fix, and enhancement update Red Hat Security Advisories (RHSA) · Oct 19, 2026
- RHSA-2026:64771 Red Hat Security Advisory: 389-ds-base security, bug fix, and enhancement update Red Hat Security Advisories (RHSA) · Oct 19, 2026
- RHSA-2026:64776 Red Hat Security Advisory: 389-ds:1.4 security, bug fix, and enhancement update Red Hat Security Advisories (RHSA) · Oct 19, 2026
- SUSE-SU-2026:23916-1 Security update for 389-ds SUSE / openSUSE Security Updates · Sep 30, 2026
- SUSE-SU-2026:4380-1 Security update for 389-ds SUSE / openSUSE Security Updates · Sep 29, 2026
- openSUSE-SU-2026:21950-1 Security update for 389-ds SUSE / openSUSE Security Updates · Sep 25, 2026
- openSUSE-SU-2026:11739-1 389-ds-3.3.1+8c2711bd6-1.1 on GA media SUSE / openSUSE Security Updates · Sep 11, 2026
- RLSA-2026:64784 Critical: 389-ds-base security, bug fix, and enhancement update Rocky Linux Security Advisories · Sep 9, 2026
- RLSA-2026:64785 Critical: 389-ds-base security, bug fix, and enhancement update Rocky Linux Security Advisories · Sep 9, 2026
- RLSA-2026:64791 Critical: 389-ds:1.4 security, bug fix, and enhancement update Rocky Linux Security Advisories · Sep 9, 2026
- ALAS2-2026-3909 Critical: 389-ds-base security update (Amazon Linux 2) Amazon Linux Security Center (ALAS) · Sep 8, 2026
References
- RHSA-2026:64771 vendor-advisory
- RHSA-2026:64776 vendor-advisory
- RHSA-2026:64778 vendor-advisory
- RHSA-2026:64779 vendor-advisory
- RHSA-2026:64780 vendor-advisory
- RHSA-2026:64781 vendor-advisory
- RHSA-2026:64783 vendor-advisory
- RHSA-2026:64784 vendor-advisory
- RHSA-2026:64785 vendor-advisory
- RHSA-2026:64789 vendor-advisory
- RHSA-2026:64790 vendor-advisory
- RHSA-2026:64791 vendor-advisory
- RHSA-2026:64792 vendor-advisory
- RHSA-2026:64793 vendor-advisory
- RHSA-2026:64804 vendor-advisory
- RHSA-2026:64811 vendor-advisory
- RHSA-2026:79217 vendor-advisory
- https://access.redhat.com/security/cve/CVE-2026-18922 vdb-entry
- RHBZ#2511388 issue-tracking