# CVE-2026-11788: 389-ds-base: A flaw was found in 389 Directory Server

CVE-2026-11788 is fixed in 8 products on 1 platform, first by SUSE-SU-2026:3136-1, released July 20, 2026. It is not reported as exploited. Patch Radar priority: High.

- Web page: https://patchblox.com/security/cve/CVE-2026-11788
- Priority: High
- CVSS: 7.5 (moderate)
- EPSS: 0.0056
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: Apr 16, 2026

## Description

A flaw was found in 389 Directory Server. The dereference control plugin does not check for allocation failure before using a BER structure, allowing an unauthenticated remote attacker to crash the LDAP server when the system is under memory pressure.

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Linux | 389-ds opensuse-leap 16.0 | 3.0.6~git382.7a51ea5f5-160000.1.1 | [OPENSUSE-SU-2026:21691-1](https://patchblox.com/security/data/fix/linux/opensuse-su-2026-21691-1.md) | Aug 30, 2026 |
| Linux | 389-ds sles 15.6 | 2.2.10~git255.752643c78-150600.8.32.1 | [SUSE-SU-2026:3136-1](https://patchblox.com/security/data/fix/linux/suse-su-2026-3136-1.md) | Jul 20, 2026 |
| Linux | 389-ds sles 15.7 | 2.7.0~git212.9b0755edb-150700.3.19.1 | [SUSE-SU-2026:3138-1](https://patchblox.com/security/data/fix/linux/suse-su-2026-3138-1.md) | Jul 20, 2026 |
| Linux | 389-ds sles 16.0 | 3.0.6~git382.7a51ea5f5-160000.1.1 | [SUSE-SU-2026:23574-1](https://patchblox.com/security/data/fix/linux/suse-su-2026-23574-1.md) | Aug 30, 2026 |
| Linux | 389-ds-base RHEL 10 | 3.0.6-20.el10_0 | [RHSA-2026:55425](https://patchblox.com/security/data/fix/linux/rhsa-2026-55425.md) | Aug 17, 2026 |
| Linux | 389-ds-base RHEL 8 | 0:1.4.3.39-26.module+el8.10.0+24634+ded7774b | [RHSA-2026:55530](https://patchblox.com/security/data/fix/linux/rhsa-2026-55530.md) | Aug 19, 2026 |
| Linux | 389-ds-base RHEL 9 | 0:2.8.0-9.el9_8 | [RHSA-2026:55423](https://patchblox.com/security/data/fix/linux/rhsa-2026-55423.md) | Aug 19, 2026 |
| Linux | 389-ds-base almalinux 10 | 3.2.0-9.el10_2 | [ALSA-2026:55424](https://patchblox.com/security/data/fix/linux/alsa-2026-55424.md) | Aug 17, 2026 |
| Linux | 389-ds-base almalinux 8 | 1.4.3.39-26.module_el8.10.0+4254+e9c4b400 | [ALSA-2026:55530](https://patchblox.com/security/data/fix/linux/alsa-2026-55530.md) | Aug 17, 2026 |
| Linux | 389-ds-base almalinux 9 | 2.8.0-9.el9_8 | [ALSA-2026:55423](https://patchblox.com/security/data/fix/linux/alsa-2026-55423.md) | Aug 17, 2026 |
| Linux | 389-ds-base ol 10 | 0:3.2.0-9.el10_2 | [ELSA-2026-55424](https://patchblox.com/security/data/fix/linux/elsa-2026-55424.md) | Aug 17, 2026 |
| Linux | 389-ds-base ol 8 | 0:1.4.3.39-26.module+el8.10.0+90990+5ec542c6 | [ELSA-2026-55530](https://patchblox.com/security/data/fix/linux/elsa-2026-55530.md) | Aug 17, 2026 |
| Linux | 389-ds-base ol 9 | 0:2.8.0-9.el9_8 | [ELSA-2026-55423](https://patchblox.com/security/data/fix/linux/elsa-2026-55423.md) | Aug 17, 2026 |
| Linux | 389-ds-base rocky 10 | 0:3.2.0-9.el10_2 | [RLSA-2026:55424](https://patchblox.com/security/data/fix/linux/rlsa-2026-55424.md) | Aug 17, 2026 |
| Linux | 389-ds-base rocky 8 | 0:1.4.3.39-26.module+el8.10.0+40279+2d6f642b | [RLSA-2026:55530](https://patchblox.com/security/data/fix/linux/rlsa-2026-55530.md) | Aug 17, 2026 |
| Linux | 389-ds-base rocky 9 | 0:2.8.0-9.el9_8 | [RLSA-2026:55423](https://patchblox.com/security/data/fix/linux/rlsa-2026-55423.md) | Aug 17, 2026 |
| Linux | 389-ds-base-bdb almalinux 10 | 3.2.0-9.el10_2 | [ALSA-2026:55424](https://patchblox.com/security/data/fix/linux/alsa-2026-55424.md) | Aug 17, 2026 |
| Linux | 389-ds-base-bdb ol 10 | 0:3.2.0-9.el10_2 | [ELSA-2026-55424](https://patchblox.com/security/data/fix/linux/elsa-2026-55424.md) | Aug 17, 2026 |
| Linux | 389-ds-base-devel RHEL 8 | 0:1.4.3.39-26.module+el8.10.0+24634+ded7774b | [RHSA-2026:55530](https://patchblox.com/security/data/fix/linux/rhsa-2026-55530.md) | Aug 19, 2026 |
| Linux | 389-ds-base-devel RHEL 9 | 0:2.8.0-9.el9_8 | [RHSA-2026:55423](https://patchblox.com/security/data/fix/linux/rhsa-2026-55423.md) | Aug 19, 2026 |
| Linux | 389-ds-base-devel almalinux 10 | 3.2.0-9.el10_2 | [ALSA-2026:55424](https://patchblox.com/security/data/fix/linux/alsa-2026-55424.md) | Aug 17, 2026 |
| Linux | 389-ds-base-devel almalinux 8 | 1.4.3.39-26.module_el8.10.0+4254+e9c4b400 | [ALSA-2026:55530](https://patchblox.com/security/data/fix/linux/alsa-2026-55530.md) | Aug 17, 2026 |
| Linux | 389-ds-base-devel almalinux 9 | 2.8.0-9.el9_8 | [ALSA-2026:55423](https://patchblox.com/security/data/fix/linux/alsa-2026-55423.md) | Aug 17, 2026 |
| Linux | 389-ds-base-devel ol 10 | 0:3.2.0-9.el10_2 | [ELSA-2026-55424](https://patchblox.com/security/data/fix/linux/elsa-2026-55424.md) | Aug 17, 2026 |
| Linux | 389-ds-base-devel ol 8 | 0:1.4.3.39-26.module+el8.10.0+90990+5ec542c6 | [ELSA-2026-55530](https://patchblox.com/security/data/fix/linux/elsa-2026-55530.md) | Aug 17, 2026 |
| Linux | 389-ds-base-devel ol 9 | 0:2.8.0-9.el9_8 | [ELSA-2026-55423](https://patchblox.com/security/data/fix/linux/elsa-2026-55423.md) | Aug 17, 2026 |
| Linux | 389-ds-base-legacy-tools RHEL 8 | 0:1.4.3.39-26.module+el8.10.0+24634+ded7774b | [RHSA-2026:55530](https://patchblox.com/security/data/fix/linux/rhsa-2026-55530.md) | Aug 19, 2026 |
| Linux | 389-ds-base-legacy-tools almalinux 8 | 1.4.3.39-26.module_el8.10.0+4254+e9c4b400 | [ALSA-2026:55530](https://patchblox.com/security/data/fix/linux/alsa-2026-55530.md) | Aug 17, 2026 |
| Linux | 389-ds-base-legacy-tools ol 8 | 0:1.4.3.39-26.module+el8.10.0+90990+5ec542c6 | [ELSA-2026-55530](https://patchblox.com/security/data/fix/linux/elsa-2026-55530.md) | Aug 17, 2026 |
| Linux | 389-ds-base-libs RHEL 8 | 0:1.4.3.39-26.module+el8.10.0+24634+ded7774b | [RHSA-2026:55530](https://patchblox.com/security/data/fix/linux/rhsa-2026-55530.md) | Aug 19, 2026 |
| Linux | 389-ds-base-libs RHEL 9 | 0:2.8.0-9.el9_8 | [RHSA-2026:55423](https://patchblox.com/security/data/fix/linux/rhsa-2026-55423.md) | Aug 19, 2026 |
| Linux | 389-ds-base-libs almalinux 10 | 3.2.0-9.el10_2 | [ALSA-2026:55424](https://patchblox.com/security/data/fix/linux/alsa-2026-55424.md) | Aug 17, 2026 |
| Linux | 389-ds-base-libs almalinux 8 | 1.4.3.39-26.module_el8.10.0+4254+e9c4b400 | [ALSA-2026:55530](https://patchblox.com/security/data/fix/linux/alsa-2026-55530.md) | Aug 17, 2026 |
| Linux | 389-ds-base-libs almalinux 9 | 2.8.0-9.el9_8 | [ALSA-2026:55423](https://patchblox.com/security/data/fix/linux/alsa-2026-55423.md) | Aug 17, 2026 |
| Linux | 389-ds-base-libs ol 10 | 0:3.2.0-9.el10_2 | [ELSA-2026-55424](https://patchblox.com/security/data/fix/linux/elsa-2026-55424.md) | Aug 17, 2026 |
| Linux | 389-ds-base-libs ol 8 | 0:1.4.3.39-26.module+el8.10.0+90990+5ec542c6 | [ELSA-2026-55530](https://patchblox.com/security/data/fix/linux/elsa-2026-55530.md) | Aug 17, 2026 |
| Linux | 389-ds-base-libs ol 9 | 0:2.8.0-9.el9_8 | [ELSA-2026-55423](https://patchblox.com/security/data/fix/linux/elsa-2026-55423.md) | Aug 17, 2026 |
| Linux | 389-ds-base-snmp RHEL 8 | 0:1.4.3.39-26.module+el8.10.0+24634+ded7774b | [RHSA-2026:55530](https://patchblox.com/security/data/fix/linux/rhsa-2026-55530.md) | Aug 19, 2026 |
| Linux | 389-ds-base-snmp RHEL 9 | 0:2.8.0-9.el9_8 | [RHSA-2026:55423](https://patchblox.com/security/data/fix/linux/rhsa-2026-55423.md) | Aug 19, 2026 |
| Linux | 389-ds-base-snmp almalinux 10 | 3.2.0-9.el10_2 | [ALSA-2026:55424](https://patchblox.com/security/data/fix/linux/alsa-2026-55424.md) | Aug 17, 2026 |
| Linux | 389-ds-base-snmp almalinux 8 | 1.4.3.39-26.module_el8.10.0+4254+e9c4b400 | [ALSA-2026:55530](https://patchblox.com/security/data/fix/linux/alsa-2026-55530.md) | Aug 17, 2026 |
| Linux | 389-ds-base-snmp almalinux 9 | 2.8.0-9.el9_8 | [ALSA-2026:55423](https://patchblox.com/security/data/fix/linux/alsa-2026-55423.md) | Aug 17, 2026 |
| Linux | 389-ds-base-snmp ol 10 | 0:3.2.0-9.el10_2 | [ELSA-2026-55424](https://patchblox.com/security/data/fix/linux/elsa-2026-55424.md) | Aug 17, 2026 |
| Linux | 389-ds-base-snmp ol 8 | 0:1.4.3.39-26.module+el8.10.0+90990+5ec542c6 | [ELSA-2026-55530](https://patchblox.com/security/data/fix/linux/elsa-2026-55530.md) | Aug 17, 2026 |
| Linux | 389-ds-base-snmp ol 9 | 0:2.8.0-9.el9_8 | [ELSA-2026-55423](https://patchblox.com/security/data/fix/linux/elsa-2026-55423.md) | Aug 17, 2026 |
| Linux | python3-lib389 RHEL 8 | 0:1.4.3.39-26.module+el8.10.0+24634+ded7774b | [RHSA-2026:55530](https://patchblox.com/security/data/fix/linux/rhsa-2026-55530.md) | Aug 19, 2026 |
| Linux | python3-lib389 RHEL 9 | 0:2.8.0-9.el9_8 | [RHSA-2026:55423](https://patchblox.com/security/data/fix/linux/rhsa-2026-55423.md) | Aug 19, 2026 |
| Linux | python3-lib389 almalinux 10 | 3.2.0-9.el10_2 | [ALSA-2026:55424](https://patchblox.com/security/data/fix/linux/alsa-2026-55424.md) | Aug 17, 2026 |
| Linux | python3-lib389 almalinux 8 | 1.4.3.39-26.module_el8.10.0+4254+e9c4b400 | [ALSA-2026:55530](https://patchblox.com/security/data/fix/linux/alsa-2026-55530.md) | Aug 17, 2026 |
| Linux | python3-lib389 almalinux 9 | 2.8.0-9.el9_8 | [ALSA-2026:55423](https://patchblox.com/security/data/fix/linux/alsa-2026-55423.md) | Aug 17, 2026 |
| Linux | python3-lib389 ol 10 | 0:3.2.0-9.el10_2 | [ELSA-2026-55424](https://patchblox.com/security/data/fix/linux/elsa-2026-55424.md) | Aug 17, 2026 |
| Linux | python3-lib389 ol 8 | 0:1.4.3.39-26.module+el8.10.0+90990+5ec542c6 | [ELSA-2026-55530](https://patchblox.com/security/data/fix/linux/elsa-2026-55530.md) | Aug 17, 2026 |
| Linux | python3-lib389 ol 9 | 0:2.8.0-9.el9_8 | [ELSA-2026-55423](https://patchblox.com/security/data/fix/linux/elsa-2026-55423.md) | Aug 17, 2026 |

---

Data as of 2026-11-09T07:25:28Z UTC. Source: Patchblox Patch Radar (https://patchblox.com/security/patch-radar). Patchblox finds out-of-date software on Windows, macOS and Linux and updates it through release rings: https://patchblox.com/demo

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