CVE-2026-18355
389-ds: heap buffer overflow in the SASL I/O layer allows a remote authenticated attacker to cause a denial of
CVE-2026-18355 is fixed in 15 products on 1 platform, first by FEDORA-2026-0B8BC362B1, released September 7, 2026. It is not reported as exploited. Patch Radar priority: High.
High
CVSS
9.8
important
Exploitation
None reported
No vendor assessment
CISA KEV
Not listed
Not in the Known Exploited Vulnerabilities catalog
EPSS
0.0084
58th percentile
heap buffer overflow in the SASL I/O layer allows a remote authenticated attacker to cause a denial of
Where it's fixed
| Product | Fixed in | Fix | Released |
|---|---|---|---|
| Linux | |||
| 389-ds · opensuse-leap 16.0 | 3.0.7~git2.2846d5288-160000.1.1 | OPENSUSE-SU-2026:21950-1 | Sep 24, 2026 |
| 389-ds · sles 15.6 | 2.2.11~git12.1e612cde2-150600.8.38.1 | SUSE-SU-2026:4929-1 | Nov 7, 2026 |
| 389-ds · sles 15.7 | 2.8.2~git10.030ada7a6-150700.3.25.1 | SUSE-SU-2026:4380-1 | Sep 28, 2026 |
| 389-ds · sles 16.0 | 3.0.7~git2.2846d5288-160000.1.1 | SUSE-SU-2026:23916-1 | Sep 24, 2026 |
| 389-ds-base · Fedora 43 | 3.1.5-4.fc43 | FEDORA-2026-0B8BC362B1 | Sep 7, 2026 |
| 389-ds-base · RHEL 10 | 3.0.6-21.el10_0 | RHSA-2026:64804 | Sep 10, 2026 |
| 389-ds-base · RHEL 8 | 0:1.4.3.39-28.module+el8.10.0+24822+205d20dc | RHSA-2026:64791 | Sep 13, 2026 |
| 389-ds-base · RHEL 9 | 0:2.8.0-10.el9_8 | RHSA-2026:64784 | Sep 13, 2026 |
| 389-ds-base · almalinux 10 | 3.2.0-10.el10_2 | ALSA-2026:64785 | Sep 8, 2026 |
| 389-ds-base · almalinux 8 | 1.4.3.39-28.module_el8.10.0+4274+00f9a3f1 | ALSA-2026:64791 | Sep 8, 2026 |
| 389-ds-base · almalinux 9 | 2.8.0-10.el9_8 | ALSA-2026:64784 | Sep 8, 2026 |
| 389-ds-base · ol 10 | 0:3.2.0-10.el10_2 | ELSA-2026-64785-0 | Sep 8, 2026 |
| 389-ds-base · ol 8 | 0:1.4.3.39-28.module+el8.10.0+91024+7bf29691 | ELSA-2026-64791-0 | Sep 10, 2026 |
| 389-ds-base · ol 9 | 0:2.8.0-10.el9_8 | ELSA-2026-64784-0 | Sep 8, 2026 |
| 389-ds-base · rocky 10 | 0:3.2.0-10.el10_2 | RLSA-2026:64785 | Sep 9, 2026 |
| 389-ds-base · rocky 8 | 0:1.4.3.39-28.module+el8.10.0+40311+cd962df1 | RLSA-2026:64791 | Sep 9, 2026 |
| 389-ds-base · rocky 9 | 0:2.8.0-10.el9_8 | RLSA-2026:64784 | Sep 9, 2026 |
| 389-ds-base-bdb · almalinux 10 | 3.2.0-10.el10_2 | ALSA-2026:64785 | Sep 8, 2026 |
| 389-ds-base-bdb · ol 10 | 0:3.2.0-10.el10_2 | ELSA-2026-64785-0 | Sep 8, 2026 |
| 389-ds-base-debuginfo · Fedora 43 | 3.1.5-4.fc43 | FEDORA-2026-0B8BC362B1 | Sep 7, 2026 |
| 389-ds-base-debugsource · Fedora 43 | 3.1.5-4.fc43 | FEDORA-2026-0B8BC362B1 | Sep 7, 2026 |
| 389-ds-base-devel · Fedora 43 | 3.1.5-4.fc43 | FEDORA-2026-0B8BC362B1 | Sep 7, 2026 |
| 389-ds-base-devel · RHEL 8 | 0:1.4.3.39-28.module+el8.10.0+24822+205d20dc | RHSA-2026:64791 | Sep 13, 2026 |
| 389-ds-base-devel · RHEL 9 | 0:2.8.0-10.el9_8 | RHSA-2026:64784 | Sep 13, 2026 |
| 389-ds-base-devel · almalinux 10 | 3.2.0-10.el10_2 | ALSA-2026:64785 | Sep 8, 2026 |
| 389-ds-base-devel · almalinux 8 | 1.4.3.39-28.module_el8.10.0+4274+00f9a3f1 | ALSA-2026:64791 | Sep 8, 2026 |
| 389-ds-base-devel · almalinux 9 | 2.8.0-10.el9_8 | ALSA-2026:64784 | Sep 8, 2026 |
| 389-ds-base-devel · ol 10 | 0:3.2.0-10.el10_2 | ELSA-2026-64785-0 | Sep 8, 2026 |
| 389-ds-base-devel · ol 8 | 0:1.4.3.39-28.module+el8.10.0+91024+7bf29691 | ELSA-2026-64791-0 | Sep 10, 2026 |
| 389-ds-base-devel · ol 9 | 0:2.8.0-10.el9_8 | ELSA-2026-64784-0 | Sep 8, 2026 |
| 389-ds-base-legacy-tools · RHEL 8 | 0:1.4.3.39-28.module+el8.10.0+24822+205d20dc | RHSA-2026:64791 | Sep 13, 2026 |
| 389-ds-base-legacy-tools · almalinux 8 | 1.4.3.39-28.module_el8.10.0+4274+00f9a3f1 | ALSA-2026:64791 | Sep 8, 2026 |
| 389-ds-base-legacy-tools · ol 8 | 0:1.4.3.39-28.module+el8.10.0+91024+7bf29691 | ELSA-2026-64791-0 | Sep 10, 2026 |
| 389-ds-base-libs · Fedora 43 | 3.1.5-4.fc43 | FEDORA-2026-0B8BC362B1 | Sep 7, 2026 |
| 389-ds-base-libs · RHEL 8 | 0:1.4.3.39-28.module+el8.10.0+24822+205d20dc | RHSA-2026:64791 | Sep 13, 2026 |
| 389-ds-base-libs · RHEL 9 | 0:2.8.0-10.el9_8 | RHSA-2026:64784 | Sep 13, 2026 |
| 389-ds-base-libs · almalinux 10 | 3.2.0-10.el10_2 | ALSA-2026:64785 | Sep 8, 2026 |
| 389-ds-base-libs · almalinux 8 | 1.4.3.39-28.module_el8.10.0+4274+00f9a3f1 | ALSA-2026:64791 | Sep 8, 2026 |
| 389-ds-base-libs · almalinux 9 | 2.8.0-10.el9_8 | ALSA-2026:64784 | Sep 8, 2026 |
| 389-ds-base-libs · ol 10 | 0:3.2.0-10.el10_2 | ELSA-2026-64785-0 | Sep 8, 2026 |
| 389-ds-base-libs · ol 8 | 0:1.4.3.39-28.module+el8.10.0+91024+7bf29691 | ELSA-2026-64791-0 | Sep 10, 2026 |
| 389-ds-base-libs · ol 9 | 0:2.8.0-10.el9_8 | ELSA-2026-64784-0 | Sep 8, 2026 |
| 389-ds-base-libs-debuginfo · Fedora 43 | 3.1.5-4.fc43 | FEDORA-2026-0B8BC362B1 | Sep 7, 2026 |
| 389-ds-base-robdb-libs · Fedora 43 | 3.1.5-4.fc43 | FEDORA-2026-0B8BC362B1 | Sep 7, 2026 |
| 389-ds-base-robdb-libs-debuginfo · Fedora 43 | 3.1.5-4.fc43 | FEDORA-2026-0B8BC362B1 | Sep 7, 2026 |
| 389-ds-base-snmp · Fedora 43 | 3.1.5-4.fc43 | FEDORA-2026-0B8BC362B1 | Sep 7, 2026 |
| 389-ds-base-snmp · RHEL 8 | 0:1.4.3.39-28.module+el8.10.0+24822+205d20dc | RHSA-2026:64791 | Sep 13, 2026 |
| 389-ds-base-snmp · RHEL 9 | 0:2.8.0-10.el9_8 | RHSA-2026:64784 | Sep 13, 2026 |
| 389-ds-base-snmp · almalinux 10 | 3.2.0-10.el10_2 | ALSA-2026:64785 | Sep 8, 2026 |
| 389-ds-base-snmp · almalinux 8 | 1.4.3.39-28.module_el8.10.0+4274+00f9a3f1 | ALSA-2026:64791 | Sep 8, 2026 |
| 389-ds-base-snmp · almalinux 9 | 2.8.0-10.el9_8 | ALSA-2026:64784 | Sep 8, 2026 |
| 389-ds-base-snmp · ol 10 | 0:3.2.0-10.el10_2 | ELSA-2026-64785-0 | Sep 8, 2026 |
| 389-ds-base-snmp · ol 8 | 0:1.4.3.39-28.module+el8.10.0+91024+7bf29691 | ELSA-2026-64791-0 | Sep 10, 2026 |
| 389-ds-base-snmp · ol 9 | 0:2.8.0-10.el9_8 | ELSA-2026-64784-0 | Sep 8, 2026 |
| 389-ds-base-snmp-debuginfo · Fedora 43 | 3.1.5-4.fc43 | FEDORA-2026-0B8BC362B1 | Sep 7, 2026 |
| cockpit-389-ds · Fedora 43 | 3.1.5-4.fc43 | FEDORA-2026-0B8BC362B1 | Sep 7, 2026 |
| python3-lib389 · Fedora 43 | 3.1.5-4.fc43 | FEDORA-2026-0B8BC362B1 | Sep 7, 2026 |
| python3-lib389 · RHEL 8 | 0:1.4.3.39-28.module+el8.10.0+24822+205d20dc | RHSA-2026:64791 | Sep 13, 2026 |
| python3-lib389 · RHEL 9 | 0:2.8.0-10.el9_8 | RHSA-2026:64784 | Sep 13, 2026 |
| python3-lib389 · almalinux 10 | 3.2.0-10.el10_2 | ALSA-2026:64785 | Sep 8, 2026 |
| python3-lib389 · almalinux 8 | 1.4.3.39-28.module_el8.10.0+4274+00f9a3f1 | ALSA-2026:64791 | Sep 8, 2026 |
| python3-lib389 · almalinux 9 | 2.8.0-10.el9_8 | ALSA-2026:64784 | Sep 8, 2026 |
| python3-lib389 · ol 10 | 0:3.2.0-10.el10_2 | ELSA-2026-64785-0 | Sep 8, 2026 |
| python3-lib389 · ol 8 | 0:1.4.3.39-28.module+el8.10.0+91024+7bf29691 | ELSA-2026-64791-0 | Sep 10, 2026 |
| python3-lib389 · ol 9 | 0:2.8.0-10.el9_8 | ELSA-2026-64784-0 | Sep 8, 2026 |
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