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Vulnerability · Published Jun 9, 2026 · Assigned by redhat

CVE-2026-11792389-ds-base: 389-ds-base: heap buffer overflow in audit log password masking (create_masked_entry_string)

Low 3.3

In plain English

A low-severity heap buffer overflow in Red Hat Directory Server 11 from Red Hat. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.3% (higher than 18% of all known vulnerabilities).

Severity (CVSS 3.1)3.3Low
Exploit odds (30 days)0.3%top 82.4% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known

Official 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 packages & fixed versions

EcosystemPackageFixed inAdvisory
Debian:12389-ds-baseno fix listedDEBIAN-CVE-2026-11792
Debian:13389-ds-baseno fix listedDEBIAN-CVE-2026-11792
Ubuntu:22.04:LTS389-ds-baseno fix listedUBUNTU-CVE-2026-11792
Ubuntu:24.04:LTS389-ds-baseno fix listedUBUNTU-CVE-2026-11792
Ubuntu:25.10389-ds-baseno fix listedUBUNTU-CVE-2026-11792
Ubuntu:26.04:LTS389-ds-baseno fix listedUBUNTU-CVE-2026-11792
Ubuntu:26.10389-ds-baseno fix listedUBUNTU-CVE-2026-11792

Affected products (as reported)

VendorProductVersions
Red Hat Red Hat Directory Server 11 see references
Red Hat Red Hat Directory Server 12 see references
Red Hat Red Hat Directory Server 13 see references
Red Hat Red Hat Enterprise Linux 10 see references
Red Hat Red Hat Enterprise Linux 6 see references
Red Hat Red Hat Enterprise Linux 7 see references
Red Hat Red Hat Enterprise Linux 8 see references
Red Hat Red Hat Enterprise Linux 9 see references

Weakness: CWE-122 · Vector: CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:N/I:L/A:L

References