Red Hat Product Errata RHSA-2026:61340 - Security Advisory Issued: 2026-08-31 Updated: 2026-08-31 RHSA-2026:61340 - Security Advisory Overview Updated Packages Synopsis Moderate: dbus-broker security update Type/Severity Security Advisory: Moderate Red Hat Lightspeed patch analysis Identify and remediate systems affected by this advisory. View affected systems Topic An update for dbus-broker is now available for Red Hat Enterprise Linux 10. Red Hat Product Security has rated this update as having a security impact of Moderate. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section. Description 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. Solution For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258 Affected Products Red Hat Enterprise Linux for x86_64 10 x86_64 Red Hat Enterprise Linux for x86_64 - Extended Update Support 10.2 x86_64 Red Hat Enterprise Linux for IBM z Systems 10 s390x Red Hat Enterprise Linux for IBM z Systems - Extended Update Support 10.2 s390x Red Hat Enterprise Linux for Power, little endian 10 ppc64le Red Hat Enterprise Linux for Power, little endian - Extended Update Support 10.2 ppc64le Red Hat Enterprise Linux for ARM 64 10 aarch64 Red Hat Enterprise Linux for ARM 64 - Extended Update Support 10.2 aarch64 Red Hat Enterprise Linux for ARM 64 - 4 years of updates 10.2 aarch64 Red Hat Enterprise Linux for IBM z Systems - 4 years of updates 10.2 s390x Red Hat Enterprise Linux for Power, little endian - 4 years of support 10.2 ppc64le Red Hat Enterprise Linux for x86_64 - 4 years of updates 10.2 x86_64 Red Hat Enterprise Linux for x86_64 - Extended Life Cycle 10.2 x86_64 Red Hat Enterprise Linux for ARM 64 - Extended Life Cycle 10.2 aarch64 Red Hat Enterprise Linux for Power, little endian - Extended Life Cycle 10.2 ppc64le Red Hat Enterprise Linux for IBM z Systems - Extended Life Cycle 10.2 s390x Fixes BZ - 2506348 - CVE-2026-16730 dbus-broker: dbus-broker: session bus denial of service via EMFILE during peer setup CVEs CVE-2026-16730 References https://access.redhat.com/security/updates/classification/#moderate Note: More recent versions of these packages may be available. Click a package name for more details. Red Hat Enterprise Linux for x86_64 10 SRPM dbus-broker-36-5.el10_2.src.rpm SHA-256: 17384b6efe5804978a882d4db221f2ef1c3fff13ce1305a55b1c4d9c300091d9 x86_64 dbus-broker-36-5.el10_2.x86_64.rpm SHA-256: 449e269c9f240b93535d194771ecf185785a7313679b9edaadcfaa7b98c347a7 dbus-broker-debuginfo-36-5.el10_2.x86_64.rpm SHA-256: 52b9e6f1374d6117ebc47c94448f294f58b19a0893d3d6fd9bed7986e24a8e0f dbus-broker-debugsource-36-5.el10_2.x86_64.rpm SHA-256: 240be610c64d4962a6c641478fed73fc8857c2f3a0efdc6b29c9319c8d5affd7 Red Hat Enterprise Linux for x86_64 - Extended Update Support 10.2 SRPM dbus-broker-36-5.el10_2.src.rpm SHA-256: 17384b6efe5804978a882d4db221f2ef1c3fff13ce1305a55b1c4d9c300091d9 x86_64 dbus-broker-36-5.el10_2.x86_64.rpm SHA-256: 449e269c9f240b93535d194771ecf185785a7313679b9edaadcfaa7b98c347a7 dbus-broker-debuginfo-36-5.el10_2.x86_64.rpm SHA-256: 52b9e6f1374d6117ebc47c94448f294f58b19a0893d3d6fd9bed7986e24a8e0f dbus-broker-debugsource-36-5.el10_2.x86_64.rpm SHA-256: 240be610c64d4962a6c641478fed73fc8857c2f3a0efdc6b29c9319c8d5affd7 Red Hat Enterprise Linux for IBM z Systems 10 SRPM dbus-broker-36-5.el10_2.src.rpm SHA-256: 17384b6efe5804978a882d4db221f2ef1c3fff13ce1305a55b1c4d9c300091d9 s390x dbus-broker-36-5.el10_2.s390x.rpm SHA-256: 487da57a54035e1485c118783f4304199a9391b41f9a529e95a8ca2654842374 dbus-broker-debuginfo-36-5.el10_2.s390x.rpm SHA-256: ada685b28c4b578c1be0511d7b6c37b075f36c8720bcba5892c19b2cada55191 dbus-broker-debugsource-36-5.el10_2.s390x.rpm SHA-256: 932a9dafc2364eedea8fd3f0a07e5a224557e22b28cc91b1dfd00412341334f5 Red Hat Enterprise Linux for IBM z Systems - Extended Update Support 10.2 SRPM dbus-broker-36-5.el10_2.src.rpm SHA-256: 17384b6efe5804978a882d4db221f2ef1c3fff13ce1305a55b1c4d9c300091d9 s390x dbus-broker-36-5.el10_2.s390x.rpm SHA-256: 487da57a54035e1485c118783f4304199a9391b41f9a529e95a8ca2654842374 dbus-broker-debuginfo-36-5.el10_2.s390x.rpm SHA-256: ada685b28c4b578c1be0511d7b6c37b075f36c8720bcba5892c19b2cada55191 dbus-broker-debugsource-36-5.el10_2.s390x.rpm SHA-256: 932a9dafc2364eedea8fd3f0a07e5a224557e22b28cc91b1dfd00412341334f5 Red Hat Enterprise Linux for Power, little endian 10 SRPM dbus-broker-36-5.el10_2.src.rpm SHA-256: 17384b6efe5804978a882d4db221f2ef1c3fff13ce1305a55b1c4d9c300091d9 ppc64le dbus-broker-36-5.el10_2.ppc64le.rpm SHA-256: fcefd32a9c40a8e2d9c064d5a9a5ae3c443678e9f57379efcaae7014c0c77894 dbus-broker-debuginfo-36-5.el10_2.ppc64le.rpm SHA-256: 04e53975e18b2560a0eb139d76ed35ef179c40a08a64d5dd22a87979606a1e24 dbus-broker-debugsource-36-5.el10_2.ppc64le.rpm SHA-256: 5a66b4c4a50a19a52970532f20b4abb8c2714cfbbec59b3bf19f2af56769752d Red Hat Enterprise Linux for Power, little endian - Extended Update Support 10.2 SRPM dbus-broker-36-5.el10_2.src.rpm SHA-256: 17384b6efe5804978a882d4db221f2ef1c3fff13ce1305a55b1c4d9c300091d9 ppc64le dbus-broker-36-5.el10_2.ppc64le.rpm SHA-256: fcefd32a9c40a8e2d9c064d5a9a5ae3c443678e9f57379efcaae7014c0c77894 dbus-broker-debuginfo-36-5.el10_2.ppc64le.rpm SHA-256: 04e53975e18b2560a0eb139d76ed35ef179c40a08a64d5dd22a87979606a1e24 dbus-broker-debugsource-36-5.el10_2.ppc64le.rpm SHA-256: 5a66b4c4a50a19a52970532f20b4abb8c2714cfbbec59b3bf19f2af56769752d Red Hat Enterprise Linux for ARM 64 10 SRPM dbus-broker-36-5.el10_2.src.rpm SHA-256: 17384b6efe5804978a882d4db221f2ef1c3fff13ce1305a55b1c4d9c300091d9 aarch64 dbus-broker-36-5.el10_2.aarch64.rpm SHA-256: 5d4952a90fa8232186d45559e3d563da88952a7d832b913538faa9b6fd39cf58 dbus-broker-debuginfo-36-5.el10_2.aarch64.rpm SHA-256: 3bdb8b69f41e192d93d5ccadd1e0c4ae22978e2e5f6fedcdab6856d10f5090ec dbus-broker-debugsource-36-5.el10_2.aarch64.rpm SHA-256: 7c3009e6122c4738fbe5c65c52129fc8df948d40d02bd98184160d44a8467675 Red Hat Enterprise Linux for ARM 64 - Extended Update Support 10.2 SRPM dbus-broker-36-5.el10_2.src.rpm SHA-256: 17384b6efe5804978a882d4db221f2ef1c3fff13ce1305a55b1c4d9c300091d9 aarch64 dbus-broker-36-5.el10_2.aarch64.rpm SHA-256: 5d4952a90fa8232186d45559e3d563da88952a7d832b913538faa9b6fd39cf58 dbus-broker-debuginfo-36-5.el10_2.aarch64.rpm SHA-256: 3bdb8b69f41e192d93d5ccadd1e0c4ae22978e2e5f6fedcdab6856d10f5090ec dbus-broker-debugsource-36-5.el10_2.aarch64.rpm SHA-256: 7c3009e6122c4738fbe5c65c52129fc8df948d40d02bd98184160d44a8467675 Red Hat Enterprise Linux for ARM 64 - 4 years of updates 10.2 SRPM dbus-broker-36-5.el10_2.src.rpm SHA-256: 17384b6efe5804978a882d4db221f2ef1c3fff13ce1305a55b1c4d9c300091d9 aarch64 dbus-broker-36-5.el10_2.aarch64.rpm SHA-256: 5d4952a90fa8232186d45559e3d563da88952a7d832b913538faa9b6fd39cf58 dbus-broker-debuginfo-36-5.el10_2.aarch64.rpm SHA-256: 3bdb8b69f41e192d93d5ccadd1e0c4ae22978e2e5f6fedcdab6856d10f5090ec dbus-broker-debugsource-36-5.el10_2.aarch64.rpm SHA-256: 7c3009e6122c4738fbe5c65c52129fc8df948d40d02bd98184160d44a8467675 Red Hat Enterprise Linux for IBM z Systems - 4 years of updates 10.2 SRPM dbus-broker-36-5.el10_2.src.rpm SHA-256: 17384b6efe5804978a882d4db221f2ef1c3fff13ce1305a55b1c4d9c300091d9 s390x dbus-broker-36-5.el10_2.s390x.rpm SHA-256: 487da57a54035e1485c118783f4304199a9391b41f9a529e95a8ca2654842374 dbus-broker-debuginfo-36-5.el10_2.s390x.rpm SHA-256: ada685b28c4b578c1be0511d7b6c37b075f36c8720bcba5892c19b2cada55191 dbus-broker-debugsource-36-5.el10_2.s390x.rpm SHA-256: 932a9dafc2364eedea8fd3f0a07e5a224557e22b28cc91b1dfd00412341334f5 Red Hat Enterprise Linux for Power, little endian - 4 years of support 10.2 SRPM dbus-broker-36-5.el10_2.src.rpm SHA-256: 17384b6efe5804978a882d4db221f2ef1c3fff13ce1305a55b1c4d9c300091d9 ppc64le dbus-broker-36-5.el10_2.ppc64le.rpm SHA-256: fcefd32a9c40a8e2d9c064d5a9a5ae3c443678e9f57379efcaae7014c0c77894 dbus-broker-debuginfo-36-5.el10_2.ppc64le.rpm SHA-256: 04e53975e18b2560a0eb139d76ed35ef179c40a08a64d5dd22a87979606a1e24 dbus-broker-debugsource-36-5.el10_2.ppc64le.rpm SHA-256: 5a66b4c4a50a19a52970532f20b4abb8c2714cfbbec59b3bf19f2af56769752d Red Hat Enterprise Linux for x86_64 - 4 years of updates 10.2 SRPM dbus-broker-36-5.el10_2.src.rpm SHA-256: 17384b6efe5804978a882d4db221f2ef1c3fff13ce1305a55b1c4d9c300091d9 x86_64 dbus-broker-36-5.el10_2.x86_64.rpm SHA-256: 449e269c9f240b93535d194771ecf185785a7313679b9edaadcfaa7b98c347a7 dbus-broker-debuginfo-36-5.el10_2.x86_64.rpm SHA-256: 52b9e6f1374d6117ebc47c94448f294f58b19a0893d3d6fd9bed7986e24a8e0f dbus-broker-debugsource-36-5.el10_2.x86_64.rpm SHA-256: 240be610c64d4962a6c641478fed73fc8857c2f3a0efdc6b29c9319c8d5affd7 Red Hat Enterprise Linux for x86_64 - Extended Life Cycle 10.2 SRPM dbus-broker-36-5.el10_2.src.rpm SHA-256: 17384b6efe5804978a882d4db221f2ef1c3fff13ce1305a55b1c4d9c300091d9 x86_64 dbus-broker-36-5.el10_2.x86_64.rpm SHA-256: 449e269c9f240b93535d194771ecf185785a7313679b9edaadcfaa7b98c347a7 dbus-broker-debuginfo-36-5.el10_2.x86_64.rpm SHA-256: 52b9e6f1374d6117ebc47c94448f294f58b19a0893d3d6fd9bed7986e24a8e0f dbus-broker-debugsource-36-5.el10_2.x86_64.rpm SHA-256: 240be610c64d4962a6c641478fed73fc8857c2f3a0efdc6b29c9319c8d5affd7 Red Hat Enterprise Linux for ARM 64 - Extended Life Cycle 10.2 SRPM dbus-broker-36-5.el10_2.src.rpm SHA-256: 17384b6efe5804978a