Red Hat Product Errata RHSA-2026:58957 - Security Advisory Issued: 2026-08-24 Updated: 2026-08-24 RHSA-2026:58957 - Security Advisory Overview Updated Packages Synopsis Moderate: assertj-core 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 assertj-core is now available for Red Hat Enterprise Linux 9.4 Update Services for SAP Solutions. 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 A rich and intuitive set of strongly-typed assertions to use for unit testing (either with JUnit or TestNG). Security Fix(es): assertj: AssertJ: Information disclosure and denial of service via XML External Entity (XXE) (CVE-2026-24400) 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 Server - AUS 9.4 x86_64 Red Hat Enterprise Linux Server for Power LE - Update Services for SAP Solutions 9.4 ppc64le Red Hat Enterprise Linux for x86_64 - Update Services for SAP Solutions 9.4 x86_64 Red Hat Enterprise Linux for ARM 64 - 4 years of updates 9.4 aarch64 Red Hat Enterprise Linux for IBM z Systems - 4 years of updates 9.4 s390x Red Hat Enterprise Linux for x86_64 - Extended Life Cycle 9.4 x86_64 Red Hat Enterprise Linux for ARM 64 - Extended Life Cycle 9.4 aarch64 Red Hat Enterprise Linux for Power, little endian - Extended Life Cycle 9.4 ppc64le Red Hat Enterprise Linux for IBM z Systems - Extended Life Cycle 9.4 s390x Fixes BZ - 2433116 - CVE-2026-24400 assertj: AssertJ: Information disclosure and denial of service via XML External Entity (XXE) CVEs CVE-2026-24400 References https://access.redhat.com/security/updates/classification/#moderate Note: More recent versions of these packages may be available. 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Red Hat Enterprise Linux Server - AUS 9.4 SRPM assertj-core-3.19.0-5.el9_4.2.src.rpm SHA-256: f38f3faf396f2b03ca6fb141f344ecfa3afdd7ed12152e3854efaec3e2b5ed96 x86_64 assertj-core-3.19.0-5.el9_4.2.noarch.rpm SHA-256: 6f54a56b44f8345a9f830cc1a729a3fe7c9eb8eeb480f7dd0355567c5b3f17ba Red Hat Enterprise Linux Server for Power LE - Update Services for SAP Solutions 9.4 SRPM assertj-core-3.19.0-5.el9_4.2.src.rpm SHA-256: f38f3faf396f2b03ca6fb141f344ecfa3afdd7ed12152e3854efaec3e2b5ed96 ppc64le assertj-core-3.19.0-5.el9_4.2.noarch.rpm SHA-256: 6f54a56b44f8345a9f830cc1a729a3fe7c9eb8eeb480f7dd0355567c5b3f17ba Red Hat Enterprise Linux for x86_64 - Update Services for SAP Solutions 9.4 SRPM assertj-core-3.19.0-5.el9_4.2.src.rpm SHA-256: f38f3faf396f2b03ca6fb141f344ecfa3afdd7ed12152e3854efaec3e2b5ed96 x86_64 assertj-core-3.19.0-5.el9_4.2.noarch.rpm SHA-256: 6f54a56b44f8345a9f830cc1a729a3fe7c9eb8eeb480f7dd0355567c5b3f17ba Red Hat Enterprise Linux for ARM 64 - 4 years of updates 9.4 SRPM assertj-core-3.19.0-5.el9_4.2.src.rpm SHA-256: f38f3faf396f2b03ca6fb141f344ecfa3afdd7ed12152e3854efaec3e2b5ed96 aarch64 assertj-core-3.19.0-5.el9_4.2.noarch.rpm SHA-256: 6f54a56b44f8345a9f830cc1a729a3fe7c9eb8eeb480f7dd0355567c5b3f17ba Red Hat Enterprise Linux for IBM z Systems - 4 years of updates 9.4 SRPM assertj-core-3.19.0-5.el9_4.2.src.rpm SHA-256: f38f3faf396f2b03ca6fb141f344ecfa3afdd7ed12152e3854efaec3e2b5ed96 s390x assertj-core-3.19.0-5.el9_4.2.noarch.rpm SHA-256: 6f54a56b44f8345a9f830cc1a729a3fe7c9eb8eeb480f7dd0355567c5b3f17ba Red Hat Enterprise Linux for x86_64 - Extended Life Cycle 9.4 SRPM assertj-core-3.19.0-5.el9_4.2.src.rpm SHA-256: f38f3faf396f2b03ca6fb141f344ecfa3afdd7ed12152e3854efaec3e2b5ed96 x86_64 assertj-core-3.19.0-5.el9_4.2.noarch.rpm SHA-256: 6f54a56b44f8345a9f830cc1a729a3fe7c9eb8eeb480f7dd0355567c5b3f17ba Red Hat Enterprise Linux for ARM 64 - Extended Life Cycle 9.4 SRPM assertj-core-3.19.0-5.el9_4.2.src.rpm SHA-256: f38f3faf396f2b03ca6fb141f344ecfa3afdd7ed12152e3854efaec3e2b5ed96 aarch64 assertj-core-3.19.0-5.el9_4.2.noarch.rpm SHA-256: 6f54a56b44f8345a9f830cc1a729a3fe7c9eb8eeb480f7dd0355567c5b3f17ba Red Hat Enterprise Linux for Power, little endian - Extended Life Cycle 9.4 SRPM assertj-core-3.19.0-5.el9_4.2.src.rpm SHA-256: f38f3faf396f2b03ca6fb141f344ecfa3afdd7ed12152e3854efaec3e2b5ed96 ppc64le assertj-core-3.19.0-5.el9_4.2.noarch.rpm SHA-256: 6f54a56b44f8345a9f830cc1a729a3fe7c9eb8eeb480f7dd0355567c5b3f17ba Red Hat Enterprise Linux for IBM z Systems - Extended Life Cycle 9.4 SRPM assertj-core-3.19.0-5.el9_4.2.src.rpm SHA-256: f38f3faf396f2b03ca6fb141f344ecfa3afdd7ed12152e3854efaec3e2b5ed96 s390x assertj-core-3.19.0-5.el9_4.2.noarch.rpm SHA-256: 6f54a56b44f8345a9f830cc1a729a3fe7c9eb8eeb480f7dd0355567c5b3f17ba The Red Hat security contact is secalert@redhat.com . More contact details at https://access.redhat.com/security/team/contact/ .