Red Hat Product Errata RHSA-2026:9098 - Security Advisory Issued: 2026-04-20 Updated: 2026-04-20 RHSA-2026:9098 - Security Advisory Overview Updated Packages Synopsis Important: skopeo security update Type/Severity Security Advisory: Important Red Hat Lightspeed patch analysis Identify and remediate systems affected by this advisory. View affected systems Topic An update for skopeo is now available for Red Hat Enterprise Linux 9.6 Extended Update Support. Red Hat Product Security has rated this update as having a security impact of Important. 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 skopeo command lets you inspect images from container image registries, get images and image layers, and use signatures to create and verify files. Security Fix(es): crypto/x509: golang: Denial of Service due to excessive resource consumption via crafted certificate (CVE-2025-61729) golang: net/url: Memory exhaustion in query parameter parsing in net/url (CVE-2025-61726) crypto/tls: Unexpected session resumption in crypto/tls (CVE-2025-68121) net/url: Incorrect parsing of IPv6 host literals in net/url (CVE-2026-25679) 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 - Extended Update Support 9.6 x86_64 Red Hat Enterprise Linux Server - AUS 9.6 x86_64 Red Hat Enterprise Linux for IBM z Systems - Extended Update Support 9.6 s390x Red Hat Enterprise Linux for Power, little endian - Extended Update Support 9.6 ppc64le Red Hat Enterprise Linux for ARM 64 - Extended Update Support 9.6 aarch64 Red Hat Enterprise Linux Server for Power LE - Update Services for SAP Solutions 9.6 ppc64le Red Hat Enterprise Linux for x86_64 - Update Services for SAP Solutions 9.6 x86_64 Red Hat Enterprise Linux for ARM 64 - 4 years of updates 9.6 aarch64 Red Hat Enterprise Linux for IBM z Systems - 4 years of updates 9.6 s390x Red Hat Enterprise Linux for x86_64 - Extended Life Cycle 9.6 x86_64 Red Hat Enterprise Linux for ARM 64 - Extended Life Cycle 9.6 aarch64 Red Hat Enterprise Linux for Power, little endian - Extended Life Cycle 9.6 ppc64le Red Hat Enterprise Linux for IBM z Systems - Extended Life Cycle 9.6 s390x Fixes BZ - 2418462 - CVE-2025-61729 crypto/x509: golang: Denial of Service due to excessive resource consumption via crafted certificate BZ - 2434432 - CVE-2025-61726 golang: net/url: Memory exhaustion in query parameter parsing in net/url BZ - 2437111 - CVE-2025-68121 crypto/tls: crypto/tls: Incorrect certificate validation during TLS session resumption BZ - 2445356 - CVE-2026-25679 net/url: Incorrect parsing of IPv6 host literals in net/url CVEs CVE-2025-61726 CVE-2025-61729 CVE-2025-68121 CVE-2026-25679 References https://access.redhat.com/security/updates/classification/#important Note: More recent versions of these packages may be available. Click a package name for more details. Red Hat Enterprise Linux for x86_64 - Extended Update Support 9.6 SRPM skopeo-1.18.1-5.el9_6.src.rpm SHA-256: 9d266472087f840a668e6eb2855a4021e054a48b0b7c9f7ad1fe5acb42e93b95 x86_64 skopeo-1.18.1-5.el9_6.x86_64.rpm SHA-256: 0db33dea8dffd2b357a0a5599852fa2cfb494e367d587b18d183477466b3c9a1 skopeo-debuginfo-1.18.1-5.el9_6.x86_64.rpm SHA-256: a0c988b7f76c38a956f106e618ed17815396e351f9970cfdae9d136808c7e8be skopeo-debugsource-1.18.1-5.el9_6.x86_64.rpm SHA-256: 9140535cf4819c731b65514c1db0af25bdeb2c06543250bcb488589ad9e535a1 skopeo-tests-1.18.1-5.el9_6.x86_64.rpm SHA-256: 6880366dd3a5a94da3608691fbeb280ecbab022abd49e8cda1c531cf27949a28 Red Hat Enterprise Linux Server - AUS 9.6 SRPM skopeo-1.18.1-5.el9_6.src.rpm SHA-256: 9d266472087f840a668e6eb2855a4021e054a48b0b7c9f7ad1fe5acb42e93b95 x86_64 skopeo-1.18.1-5.el9_6.x86_64.rpm SHA-256: 0db33dea8dffd2b357a0a5599852fa2cfb494e367d587b18d183477466b3c9a1 skopeo-debuginfo-1.18.1-5.el9_6.x86_64.rpm SHA-256: a0c988b7f76c38a956f106e618ed17815396e351f9970cfdae9d136808c7e8be skopeo-debugsource-1.18.1-5.el9_6.x86_64.rpm SHA-256: 9140535cf4819c731b65514c1db0af25bdeb2c06543250bcb488589ad9e535a1 skopeo-tests-1.18.1-5.el9_6.x86_64.rpm SHA-256: 6880366dd3a5a94da3608691fbeb280ecbab022abd49e8cda1c531cf27949a28 Red Hat Enterprise Linux for IBM z Systems - Extended Update Support 9.6 SRPM skopeo-1.18.1-5.el9_6.src.rpm SHA-256: 9d266472087f840a668e6eb2855a4021e054a48b0b7c9f7ad1fe5acb42e93b95 s390x skopeo-1.18.1-5.el9_6.s390x.rpm SHA-256: 09d417308a6ce42318880e7040d66e76b6a61bb4211cd2c0c35e6ca49279e491 skopeo-debuginfo-1.18.1-5.el9_6.s390x.rpm SHA-256: a7fa471bbc6bf37f5f4b7ff9a46e1306c41c7c635f518cbf1e9869cb6474b3a2 skopeo-debugsource-1.18.1-5.el9_6.s390x.rpm SHA-256: f0b218bb413b02696d234f7e38c22a251cc762507a8daa6d7801e078a9475d8c skopeo-tests-1.18.1-5.el9_6.s390x.rpm SHA-256: 86a1ddc7600aaa0e12453d5d537de662284e9036422d223ca487d934e850efd2 Red Hat Enterprise Linux for Power, little endian - Extended Update Support 9.6 SRPM skopeo-1.18.1-5.el9_6.src.rpm SHA-256: 9d266472087f840a668e6eb2855a4021e054a48b0b7c9f7ad1fe5acb42e93b95 ppc64le skopeo-1.18.1-5.el9_6.ppc64le.rpm SHA-256: 106a35da2e60cdb44358cf697f486737fb5d3b16da9a9a7b389f6bb56307ae74 skopeo-debuginfo-1.18.1-5.el9_6.ppc64le.rpm SHA-256: 3f33e48fba4a5815fd1d4190d6d4155ed67bd92377b748e91d5ada29c10289e6 skopeo-debugsource-1.18.1-5.el9_6.ppc64le.rpm SHA-256: 45f373f1f172f9c6d76f5973a0573b058385cd6f52ec95a3a9d85f10f7964dc7 skopeo-tests-1.18.1-5.el9_6.ppc64le.rpm SHA-256: 6f8c8c417d1c23d446c244f723e607630e5afa53091e2348005b3fe14ac671ac Red Hat Enterprise Linux for ARM 64 - Extended Update Support 9.6 SRPM skopeo-1.18.1-5.el9_6.src.rpm SHA-256: 9d266472087f840a668e6eb2855a4021e054a48b0b7c9f7ad1fe5acb42e93b95 aarch64 skopeo-1.18.1-5.el9_6.aarch64.rpm SHA-256: bbcbc8bf94bd6646502ef1c55996766d27073fe90c860d90826998fe01385d57 skopeo-debuginfo-1.18.1-5.el9_6.aarch64.rpm SHA-256: b017118b4987a4a39a06bd5fac06e5974891b186755cc518d8107808aadda565 skopeo-debugsource-1.18.1-5.el9_6.aarch64.rpm SHA-256: 3933f0000f9ba3ddbb9a0f367e59b9709e28a463ed2bd710fa74ae22610344d6 skopeo-tests-1.18.1-5.el9_6.aarch64.rpm SHA-256: 8852c0c7d803ac6b49ae46c49318f89679602f8b13db07c827e25586d863117f Red Hat Enterprise Linux Server for Power LE - Update Services for SAP Solutions 9.6 SRPM skopeo-1.18.1-5.el9_6.src.rpm SHA-256: 9d266472087f840a668e6eb2855a4021e054a48b0b7c9f7ad1fe5acb42e93b95 ppc64le skopeo-1.18.1-5.el9_6.ppc64le.rpm SHA-256: 106a35da2e60cdb44358cf697f486737fb5d3b16da9a9a7b389f6bb56307ae74 skopeo-debuginfo-1.18.1-5.el9_6.ppc64le.rpm SHA-256: 3f33e48fba4a5815fd1d4190d6d4155ed67bd92377b748e91d5ada29c10289e6 skopeo-debugsource-1.18.1-5.el9_6.ppc64le.rpm SHA-256: 45f373f1f172f9c6d76f5973a0573b058385cd6f52ec95a3a9d85f10f7964dc7 skopeo-tests-1.18.1-5.el9_6.ppc64le.rpm SHA-256: 6f8c8c417d1c23d446c244f723e607630e5afa53091e2348005b3fe14ac671ac Red Hat Enterprise Linux for x86_64 - Update Services for SAP Solutions 9.6 SRPM skopeo-1.18.1-5.el9_6.src.rpm SHA-256: 9d266472087f840a668e6eb2855a4021e054a48b0b7c9f7ad1fe5acb42e93b95 x86_64 skopeo-1.18.1-5.el9_6.x86_64.rpm SHA-256: 0db33dea8dffd2b357a0a5599852fa2cfb494e367d587b18d183477466b3c9a1 skopeo-debuginfo-1.18.1-5.el9_6.x86_64.rpm SHA-256: a0c988b7f76c38a956f106e618ed17815396e351f9970cfdae9d136808c7e8be skopeo-debugsource-1.18.1-5.el9_6.x86_64.rpm SHA-256: 9140535cf4819c731b65514c1db0af25bdeb2c06543250bcb488589ad9e535a1 skopeo-tests-1.18.1-5.el9_6.x86_64.rpm SHA-256: 6880366dd3a5a94da3608691fbeb280ecbab022abd49e8cda1c531cf27949a28 Red Hat Enterprise Linux for ARM 64 - 4 years of updates 9.6 SRPM skopeo-1.18.1-5.el9_6.src.rpm SHA-256: 9d266472087f840a668e6eb2855a4021e054a48b0b7c9f7ad1fe5acb42e93b95 aarch64 skopeo-1.18.1-5.el9_6.aarch64.rpm SHA-256: bbcbc8bf94bd6646502ef1c55996766d27073fe90c860d90826998fe01385d57 skopeo-debuginfo-1.18.1-5.el9_6.aarch64.rpm SHA-256: b017118b4987a4a39a06bd5fac06e5974891b186755cc518d8107808aadda565 skopeo-debugsource-1.18.1-5.el9_6.aarch64.rpm SHA-256: 3933f0000f9ba3ddbb9a0f367e59b9709e28a463ed2bd710fa74ae22610344d6 skopeo-tests-1.18.1-5.el9_6.aarch64.rpm SHA-256: 8852c0c7d803ac6b49ae46c49318f89679602f8b13db07c827e25586d863117f Red Hat Enterprise Linux for IBM z Systems - 4 years of updates 9.6 SRPM skopeo-1.18.1-5.el9_6.src.rpm SHA-256: 9d266472087f840a668e6eb2855a4021e054a48b0b7c9f7ad1fe5acb42e93b95 s390x skopeo-1.18.1-5.el9_6.s390x.rpm SHA-256: 09d417308a6ce42318880e7040d66e76b6a61bb4211cd2c0c35e6ca49279e491 skopeo-debuginfo-1.18.1-5.el9_6.s390x.rpm SHA-256: a7fa471bbc6bf37f5f4b7ff9a46e1306c41c7c635f518cbf1e9869cb6474b3a2 skopeo-debugsource-1.18.1-5.el9_6.s390x.rpm SHA-256: f0b218bb413b02696d234f7e38c22a251cc762507a8daa6d7801e078a9475d8c skopeo-tests-1.18.1-5.el9_6.s390x.rpm SHA-256: 86a1ddc7600aaa0e12453d5d537de662284e9036422d223ca487d934e850efd2 Red Hat Enterprise Linux for x86_64 - Extended Life Cycle 9.6 SRPM skopeo-1.18.1-5.el9_6.src.rpm SHA-256: 9d266472087f840a668e6eb2855a4021e054a48b0b7c9f7ad1fe5acb42e93b95 x86_64 skopeo-1.18.1-5.el9_6.x86_64.rpm SHA-256: 0db33dea8dffd2b357a0a5599852fa2cfb494e367d587b18d183477466b3c9a1 skopeo-debuginfo-1.18.1-5.el9_6.x86_64.rpm SHA-256: a0c988b7f76c38a956f106e618ed17815396e351f9970cfdae9d136808c7e8be skopeo-debugsource-1.18.1-5.el9_6.x86_64.rpm SHA-256: 9140535cf4819c731b65514c1db0af25bdeb2c06543250bcb488589ad9e535a1 skopeo-tests-1.18.1-5.el9_6.x86_64.rpm SHA-256: 6880366dd3a5a94da3608691fbeb280ecbab022abd49e8cda1c531cf27949a28 Red Hat Enterprise Linux for ARM 64 - Extended Life Cycle 9.6 SRPM skopeo-1.18.1-5.el9_6.src.rpm SHA-256: 9d266472087f840a668e6eb2855a4021e054a48b0b7c9f7ad1fe5acb42e93b95 aarch64 skopeo-1.18.1-5.el9_6.aarch64.rpm SHA-256: bbcbc8bf94bd6646502ef1c55996766d27073fe90c860d90826998fe01385d