RHSA-2026:55756: 389 Directory Server Vulnerabilities Patched (Pre-Auth Filter Injection, NULL Ptr Dereference, Stack Overflow)

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Security AdvisoryRHSA-2026:55756HighRed Hat

Affected:

Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support 389-ds-base
Red Hat Enterprise Linux 8.6 Extended Update Support Long-Life Add-On 389-ds-base

Fixed in:

389-ds-1.4

Referenced CVEs: CVE-2026-11770 · 7.5 CVE-2026-15722 · 7.5 CVE-2026-11788 · 5.9

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