Red Hat Product Errata RHSA-2026:13677 - Security Advisory Issued: 2026-05-05 Updated: 2026-05-05 RHSA-2026:13677 - Security Advisory Overview Updated Packages Synopsis Moderate: systemd 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 systemd is now available for Red Hat Enterprise Linux 9. 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 The systemd packages contain systemd, a system and service manager for Linux, compatible with the SysV and LSB init scripts. It provides aggressive parallelism capabilities, uses socket and D-Bus activation for starting services, offers on-demand starting of daemons, and keeps track of processes using Linux cgroups. In addition, it supports snapshotting and restoring of the system state, maintains mount and automount points, and implements an elaborate transactional dependency-based service control logic. It can also work as a drop-in replacement for sysvinit. Security Fix(es): systemd: systemd: Arbitrary code execution or Denial of Service via spurious IPC API call data (CVE-2026-29111) 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 9 x86_64 Red Hat Enterprise Linux for IBM z Systems 9 s390x Red Hat Enterprise Linux for Power, little endian 9 ppc64le Red Hat Enterprise Linux for ARM 64 9 aarch64 Fixes BZ - 2450505 - CVE-2026-29111 systemd: systemd: Arbitrary code execution or Denial of Service via spurious IPC API call data CVEs CVE-2026-29111 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 9 SRPM systemd-252-55.el9_7.9.src.rpm SHA-256: 9a5aa7d99c99c2114e7437f1740324e17bb6ee26d281044ab3bf402bf0d9b353 x86_64 rhel-net-naming-sysattrs-252-55.el9_7.9.noarch.rpm SHA-256: 4550713ba100b3d7b18b7e8352def89f065e67b05a375b84be52c1231a221d75 systemd-252-55.el9_7.9.i686.rpm SHA-256: bedd974291f687b45107e6331fa95738baacc5af446e75ae09231a60f156c53d systemd-252-55.el9_7.9.x86_64.rpm SHA-256: cda660e51919a1fabc7f59badc12eaf66050e205970f89de8e0b495740292bb2 systemd-boot-unsigned-252-55.el9_7.9.x86_64.rpm SHA-256: 109781172f5398bd3cada5e212fa3b49c8e2bf965b0c3b82ec65e577d860b1e1 systemd-boot-unsigned-debuginfo-252-55.el9_7.9.x86_64.rpm SHA-256: 7fc3f0d2259f5a98da438726b90e3dbbf33282f173c2cb52363bde7d85f80ad6 systemd-boot-unsigned-debuginfo-252-55.el9_7.9.x86_64.rpm SHA-256: 7fc3f0d2259f5a98da438726b90e3dbbf33282f173c2cb52363bde7d85f80ad6 systemd-container-252-55.el9_7.9.i686.rpm SHA-256: 43d41d2677e1aa90d2950b0401d62247499f90b792628bcd6a84317485001e6e systemd-container-252-55.el9_7.9.x86_64.rpm SHA-256: 99afd8984a550c85cc7a75c94f00bff43854bb2a859d9e3a2f9c111a0b92678a systemd-container-debuginfo-252-55.el9_7.9.i686.rpm SHA-256: 963589d68f8361dbee5767b9afa8918e1d74a0e01acafa3e0bcab27f83083e15 systemd-container-debuginfo-252-55.el9_7.9.i686.rpm SHA-256: 963589d68f8361dbee5767b9afa8918e1d74a0e01acafa3e0bcab27f83083e15 systemd-container-debuginfo-252-55.el9_7.9.x86_64.rpm SHA-256: 6ef29bd40521022a14b7ffb389a86338000bcbac52b149b5795a31f09d5453be systemd-container-debuginfo-252-55.el9_7.9.x86_64.rpm SHA-256: 6ef29bd40521022a14b7ffb389a86338000bcbac52b149b5795a31f09d5453be systemd-debuginfo-252-55.el9_7.9.i686.rpm SHA-256: 3e6954f471bc79e5aee5e069228c9d9ce32d142a739065265de8f7a738503c80 systemd-debuginfo-252-55.el9_7.9.i686.rpm SHA-256: 3e6954f471bc79e5aee5e069228c9d9ce32d142a739065265de8f7a738503c80 systemd-debuginfo-252-55.el9_7.9.x86_64.rpm SHA-256: 833c80ed6cc4d6caa7a958414ebe3d7268ca105f502769261a0ded34be0be054 systemd-debuginfo-252-55.el9_7.9.x86_64.rpm SHA-256: 833c80ed6cc4d6caa7a958414ebe3d7268ca105f502769261a0ded34be0be054 systemd-debugsource-252-55.el9_7.9.i686.rpm SHA-256: 2e6e90f70a7e06cd447c92133a5ab21831100440ecc8ca869e6dbd32edb94bb5 systemd-debugsource-252-55.el9_7.9.i686.rpm SHA-256: 2e6e90f70a7e06cd447c92133a5ab21831100440ecc8ca869e6dbd32edb94bb5 systemd-debugsource-252-55.el9_7.9.x86_64.rpm SHA-256: f317caaf493ae386bf359762f0fd11b94688f8847c65234d675c023f0016a46e systemd-debugsource-252-55.el9_7.9.x86_64.rpm SHA-256: f317caaf493ae386bf359762f0fd11b94688f8847c65234d675c023f0016a46e systemd-devel-252-55.el9_7.9.i686.rpm SHA-256: ff7aecdf358a696ca4d40ece97af1504c1ce4e02f844f200b1e97ebcebbe88fa systemd-devel-252-55.el9_7.9.x86_64.rpm SHA-256: 960c44420fe92b99ee33cddae57f057b003274174fb780aebf2e87993ee8a887 systemd-journal-remote-252-55.el9_7.9.x86_64.rpm SHA-256: 31bffe5cf7753595a66e00287fa31212c9a4fef00c909d64a16886333c94161d systemd-journal-remote-debuginfo-252-55.el9_7.9.i686.rpm SHA-256: 16068d611624ebf9daab5f36721f6808c2198ab918a2a8c04e833d3bd3167201 systemd-journal-remote-debuginfo-252-55.el9_7.9.i686.rpm SHA-256: 16068d611624ebf9daab5f36721f6808c2198ab918a2a8c04e833d3bd3167201 systemd-journal-remote-debuginfo-252-55.el9_7.9.x86_64.rpm SHA-256: 3aa6b87271dd9cc5f2fc2cdbfa64b87d9a9233f9b75d3a7a5d702d62dbbab07e systemd-journal-remote-debuginfo-252-55.el9_7.9.x86_64.rpm SHA-256: 3aa6b87271dd9cc5f2fc2cdbfa64b87d9a9233f9b75d3a7a5d702d62dbbab07e systemd-libs-252-55.el9_7.9.i686.rpm SHA-256: 7e2e00248a2d920e299cf03de67889007a07ec1977b2898b7e05a438dfcabeeb systemd-libs-252-55.el9_7.9.x86_64.rpm SHA-256: 2fbf0d1d67c21313269bf1904db7c146788b6c7520e5afcdfe273ab71ca34e67 systemd-libs-debuginfo-252-55.el9_7.9.i686.rpm SHA-256: 87fa36181022eb5aad646ddc52747ac0911cd9e738b73cddab9ed6bca9f165d1 systemd-libs-debuginfo-252-55.el9_7.9.i686.rpm SHA-256: 87fa36181022eb5aad646ddc52747ac0911cd9e738b73cddab9ed6bca9f165d1 systemd-libs-debuginfo-252-55.el9_7.9.x86_64.rpm SHA-256: 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