What’s Vulnerable › Vulnerabilities

CVE-2026-11792: 389-ds-base: 389-ds-base: heap buffer overflow in audit log password masking (create_masked_entry_string)

• Severity: low (CVSS 3.3 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.3% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-06-09 · updated 2026-07-23
• Weakness: CWE-122

Description

A heap buffer overflow flaw was found in 389 Directory Server. When audit logging is enabled, the create_masked_entry_string() function in auditlog.c copies a fixed-length password mask into a precisely-sized heap buffer without checking available space. If a short cleartext password is logged (requiring non-default CLEAR password storage or a compromised replication peer), the copy overflows the buffer, corrupting heap memory and audit log output.

Affected products

• Red Hat Directory Server 12: all versions
• Red Hat Directory Server 13: all versions
• Red Hat Enterprise Linux 10: all versions
• Red Hat Enterprise Linux 9: all versions

References

• https://access.redhat.com/errata/RHBA-2025:15534
• https://access.redhat.com/security/cve/CVE-2026-11792
• https://bugzilla.redhat.com/show_bug.cgi?id=2484915

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