RHSA-2026:61355: Moderate: dbus-broker security update

Published Aug 31, 2026
·
Updated

dbus-broker is an implementation of a message bus as defined by the D-Bus specification. Its aim is to provide high performance and reliability, while keeping compatibility to the D-Bus reference implementation. It is exclusively written for Linux systems, and makes use of many modern features provided by recent Linux kernel releases.Security Fix(es): dbus-broker: dbus-broker: session bus denial of service via EMFILE during peer setup (CVE-2026-16730) For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

Affected Software

28 affected componentsFixes available
Red Hat Red Hat Enterprise Linux for IBM z Systems - 4 years of updates
Red Hat Red Hat Enterprise Linux for ARM 64
Red Hat Red Hat Enterprise Linux for IBM z Systems - Extended Life Cycle
Red Hat Red Hat Enterprise Linux for x86_64 - Extended Update Support
Red Hat Red Hat Enterprise Linux for IBM z Systems - Extended Update Support
Red Hat Red Hat Enterprise Linux for x86_64 - Extended Life Cycle
Red Hat Red Hat Enterprise Linux for x86_64 - Update Services for SAP Solutions
Red Hat Red Hat Enterprise Linux for x86_64
Red Hat Red Hat Enterprise Linux for Power, little endian - Extended Update Support
Red Hat Red Hat Enterprise Linux for Power, little endian
Red Hat Red Hat Enterprise Linux for IBM z Systems
Red Hat Red Hat Enterprise Linux Server for Power LE - Update Services for SAP Solutions
Red Hat Red Hat Enterprise Linux for ARM 64 - Extended Life Cycle
Red Hat Red Hat Enterprise Linux for Power, little endian - Extended Life Cycle
Red Hat Red Hat Enterprise Linux for ARM 64 - 4 years of updates
Red Hat Red Hat Enterprise Linux for ARM 64 - Extended Update Support
redhat/dbus-broker<28-9.el9_8
28-9.el9_8
redhat/dbus-broker<28-9.el9_8
28-9.el9_8
redhat/dbus-broker-debuginfo<28-9.el9_8
28-9.el9_8
redhat/dbus-broker-debugsource<28-9.el9_8
28-9.el9_8
redhat/dbus-broker-debuginfo<28-9.el9_8
28-9.el9_8
redhat/dbus-broker-debugsource<28-9.el9_8
28-9.el9_8
redhat/dbus-broker<28-9.el9_8
28-9.el9_8
redhat/dbus-broker-debuginfo<28-9.el9_8
28-9.el9_8
redhat/dbus-broker-debugsource<28-9.el9_8
28-9.el9_8
redhat/dbus-broker<28-9.el9_8.aa
28-9.el9_8.aa
redhat/dbus-broker-debuginfo<28-9.el9_8.aa
28-9.el9_8.aa
redhat/dbus-broker-debugsource<28-9.el9_8.aa
28-9.el9_8.aa

Remediation

Recommended actions to resolve this vulnerability, in priority order.

  1. Upgrade

    Upgrade redhat/dbus-broker to a version that resolves this vulnerability.

    Fixed in 28-9.el9_8
  2. Upgrade

    Upgrade redhat/dbus-broker-debuginfo to a version that resolves this vulnerability.

    Fixed in 28-9.el9_8
  3. Upgrade

    Upgrade redhat/dbus-broker-debugsource to a version that resolves this vulnerability.

    Fixed in 28-9.el9_8
  4. Upgrade

    Upgrade redhat/dbus-broker to a version that resolves this vulnerability.

    Fixed in 28-9.el9_8.aa
  5. Upgrade

    Upgrade redhat/dbus-broker-debuginfo to a version that resolves this vulnerability.

    Fixed in 28-9.el9_8.aa
  6. Upgrade

    Upgrade redhat/dbus-broker-debugsource to a version that resolves this vulnerability.

    Fixed in 28-9.el9_8.aa

Event History

Aug 31, 2026
Advisory Published
via Red Hat·12:00 AM
Data Sourced
via Red Hat·12:00 AM
RemedyDescriptionAffected Software
Advisory Published
via Red Hat·08:51 AM
Data Sourced
via Red Hat·08:51 AM
Severity

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