Red Hat Product Errata RHSA-2026:63639 - Security Advisory Issued: 2026-09-08 Updated: 2026-09-08 RHSA-2026:63639 - Security Advisory Overview Updated Packages Synopsis Important: Red Hat build of MicroShift 4.22.13 security update Type/Severity Security Advisory: Important Red Hat Lightspeed patch analysis Identify and remediate systems affected by this advisory. View affected systems Topic Red Hat build of MicroShift release 4.22.13 is now available with updates to packages and images that include a security update. 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 Red Hat build of MicroShift is Red Hat's light-weight Kubernetes orchestration solution designed for edge device deployments and is built from the edge capabilities of Red Hat OpenShift Container Platform. MicroShift is an application that is deployed on top of Red Hat Enterprise Linux devices at the edge, providing an efficient way to operate single-node clusters in these low-resource environments. This advisory contains the RPM packages for Red Hat build of MicroShift 4.22.13. Read the following advisory for the container images for this release: https://access.redhat.com/errata/RHSA-2026:63096 Security Fix(es): net/http/internal/http2: golang: golang.org/x/net: Go HTTP/2: Denial of Service via malformed SETTINGS_MAX_FRAME_SIZE frame (CVE-2026-33814) All Red Hat build of MicroShift 4.22 users are advised to use these updated packages and images when they are available in the RPM repository. Solution For MicroShift 4.22, read the following documentation for important instructions on how to install the latest RPMs and fully apply this asynchronous errata update: https://docs.redhat.com/en/documentation/red_hat_build_of_microshift/4.22/html/red_hat_build_of_microshift_release_notes/index Affected Products Red Hat OpenShift Container Platform 4.22 for RHEL 9 x86_64 Red Hat OpenShift Container Platform for Power 4.22 for RHEL 9 ppc64le Red Hat OpenShift Container Platform for IBM Z and LinuxONE 4.22 for RHEL 9 s390x Red Hat OpenShift Container Platform for ARM 64 4.22 for RHEL 9 aarch64 Fixes BZ - 2467815 - CVE-2026-33814 net/http/internal/http2: golang: golang.org/x/net: Go HTTP/2: Denial of Service via malformed SETTINGS_MAX_FRAME_SIZE frame CVEs CVE-2026-33814 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 OpenShift Container Platform 4.22 for RHEL 9 SRPM microshift-4.22.13-202609041025.p0.g0d02d40.assembly.4.22.13.el9.src.rpm SHA-256: 4912db9957c259edbf0beec2bd7ce88dc18fb7ef5e0abad86158827669255efa x86_64 microshift-4.22.13-202609041025.p0.g0d02d40.assembly.4.22.13.el9.x86_64.rpm SHA-256: 47b8d11482c595af7523b77489bf419509af2b7c18001b9eae4227c7dbacd048 microshift-ai-model-serving-4.22.13-202609041025.p0.g0d02d40.assembly.4.22.13.el9.x86_64.rpm SHA-256: 8a629c9d29955af14e6b04dc3d0a32f1924cd01958d798f3eea17fdcff8df109 microshift-ai-model-serving-release-info-4.22.13-202609041025.p0.g0d02d40.assembly.4.22.13.el9.noarch.rpm SHA-256: fcb7b35d0dba7f8c8db62cc6d4a4c021adc5a2828301f159d40f82f60c0517c8 microshift-cert-manager-4.22.13-202609041025.p0.g0d02d40.assembly.4.22.13.el9.x86_64.rpm SHA-256: e902d252cf604db2d5c45d2d343a4a8c0a796b17add896445df964342f470fca microshift-cert-manager-release-info-4.22.13-202609041025.p0.g0d02d40.assembly.4.22.13.el9.noarch.rpm SHA-256: 1da6d9449cbc84802e419ba68677a21244712db63b5aca41634f1aa086ba55f3 microshift-gateway-api-4.22.13-202609041025.p0.g0d02d40.assembly.4.22.13.el9.x86_64.rpm SHA-256: 09a59d84a11ecdd2e412c5b3172283c4aa6cab255a24850e42093f239aaf456f microshift-gateway-api-release-info-4.22.13-202609041025.p0.g0d02d40.assembly.4.22.13.el9.noarch.rpm SHA-256: c69e0ed6c3bba56a5aed37ad6d5b6085e745f80a6a9e10e5c5035e3dc62c5cd2 microshift-greenboot-4.22.13-202609041025.p0.g0d02d40.assembly.4.22.13.el9.noarch.rpm SHA-256: c303fb577936b8fe6c3e9ba29628b27de37062e05db56b780aa2a8ab73299492 microshift-low-latency-4.22.13-202609041025.p0.g0d02d40.assembly.4.22.13.el9.noarch.rpm SHA-256: ab82884b580963d2cbbb4635183523258092c870aa8307f5cf3f5d0d34dccca2 microshift-multus-4.22.13-202609041025.p0.g0d02d40.assembly.4.22.13.el9.x86_64.rpm SHA-256: cbc91117adb789b6649bf3f789cb60964cca5dfb0e7b6c3e7662ff45d7d7b254 microshift-multus-release-info-4.22.13-202609041025.p0.g0d02d40.assembly.4.22.13.el9.noarch.rpm SHA-256: efb297d45edcd9e1a9c93e968917e0847ae0348166abd6eaa7cf9433d526be0d microshift-networking-4.22.13-202609041025.p0.g0d02d40.assembly.4.22.13.el9.x86_64.rpm SHA-256: 266cea4396dcaedd3365889bb71a72ea3ab84d5d8d891b76b24b0b820160538e microshift-observability-4.22.13-202609041025.p0.g0d02d40.assembly.4.22.13.el9.noarch.rpm SHA-256: 2d708927e5219b6ec541af736e8fbe659bda02a11be852428078ab9d0fe9ed4b microshift-olm-4.22.13-202609041025.p0.g0d02d40.assembly.4.22.13.el9.x86_64.rpm SHA-256: b9676d88339d2820b5641043203cbd9c26bc76c8679ca8b5163addd0c978ad33 microshift-olm-release-info-4.22.13-202609041025.p0.g0d02d40.assembly.4.22.13.el9.noarch.rpm SHA-256: 2dcc961244aae472bdeb5bc792bb7d2c48e58ca0af024b51ed9813044fe9ba86 microshift-release-info-4.22.13-202609041025.p0.g0d02d40.assembly.4.22.13.el9.noarch.rpm SHA-256: a4ee01119e40268e3bfbd774d426a2a7deeda831fe1a85f0e387d84987ec2f10 microshift-selinux-4.22.13-202609041025.p0.g0d02d40.assembly.4.22.13.el9.noarch.rpm SHA-256: c1ed94dfa4218b6da1d835244cf465082843f2c8f5c27fedfa83d459b75aef47 microshift-sriov-4.22.13-202609041025.p0.g0d02d40.assembly.4.22.13.el9.x86_64.rpm SHA-256: 71e19df8beb2c381a7372b446a8cd78a1a91a86be7f6fe277b448a4b6271b548 microshift-sriov-release-info-4.22.13-202609041025.p0.g0d02d40.assembly.4.22.13.el9.noarch.rpm SHA-256: 6525ae06141ab09ef4afac6d1b7593f4c34fe0a15f8f7d4e6a24e2b4635d403d Red Hat OpenShift Container Platform for Power 4.22 for RHEL 9 SRPM microshift-4.22.13-202609041025.p0.g0d02d40.assembly.4.22.13.el9.src.rpm SHA-256: 4912db9957c259edbf0beec2bd7ce88dc18fb7ef5e0abad86158827669255efa ppc64le microshift-ai-model-serving-release-info-4.22.13-202609041025.p0.g0d02d40.assembly.4.22.13.el9.noarch.rpm SHA-256: fcb7b35d0dba7f8c8db62cc6d4a4c021adc5a2828301f159d40f82f60c0517c8 microshift-cert-manager-release-info-4.22.13-202609041025.p0.g0d02d40.assembly.4.22.13.el9.noarch.rpm SHA-256: 1da6d9449cbc84802e419ba68677a21244712db63b5aca41634f1aa086ba55f3 microshift-gateway-api-release-info-4.22.13-202609041025.p0.g0d02d40.assembly.4.22.13.el9.noarch.rpm SHA-256: c69e0ed6c3bba56a5aed37ad6d5b6085e745f80a6a9e10e5c5035e3dc62c5cd2 microshift-greenboot-4.22.13-202609041025.p0.g0d02d40.assembly.4.22.13.el9.noarch.rpm SHA-256: c303fb577936b8fe6c3e9ba29628b27de37062e05db56b780aa2a8ab73299492 microshift-low-latency-4.22.13-202609041025.p0.g0d02d40.assembly.4.22.13.el9.noarch.rpm SHA-256: ab82884b580963d2cbbb4635183523258092c870aa8307f5cf3f5d0d34dccca2 microshift-multus-release-info-4.22.13-202609041025.p0.g0d02d40.assembly.4.22.13.el9.noarch.rpm SHA-256: efb297d45edcd9e1a9c93e968917e0847ae0348166abd6eaa7cf9433d526be0d microshift-observability-4.22.13-202609041025.p0.g0d02d40.assembly.4.22.13.el9.noarch.rpm SHA-256: 2d708927e5219b6ec541af736e8fbe659bda02a11be852428078ab9d0fe9ed4b microshift-olm-release-info-4.22.13-202609041025.p0.g0d02d40.assembly.4.22.13.el9.noarch.rpm SHA-256: 2dcc961244aae472bdeb5bc792bb7d2c48e58ca0af024b51ed9813044fe9ba86 microshift-release-info-4.22.13-202609041025.p0.g0d02d40.assembly.4.22.13.el9.noarch.rpm SHA-256: a4ee01119e40268e3bfbd774d426a2a7deeda831fe1a85f0e387d84987ec2f10 microshift-selinux-4.22.13-202609041025.p0.g0d02d40.assembly.4.22.13.el9.noarch.rpm SHA-256: c1ed94dfa4218b6da1d835244cf465082843f2c8f5c27fedfa83d459b75aef47 microshift-sriov-release-info-4.22.13-202609041025.p0.g0d02d40.assembly.4.22.13.el9.noarch.rpm SHA-256: 6525ae06141ab09ef4afac6d1b7593f4c34fe0a15f8f7d4e6a24e2b4635d403d Red Hat OpenShift Container Platform for IBM Z and LinuxONE 4.22 for RHEL 9 SRPM microshift-4.22.13-202609041025.p0.g0d02d40.assembly.4.22.13.el9.src.rpm SHA-256: 4912db9957c259edbf0beec2bd7ce88dc18fb7ef5e0abad86158827669255efa s390x microshift-ai-model-serving-release-info-4.22.13-202609041025.p0.g0d02d40.assembly.4.22.13.el9.noarch.rpm SHA-256: fcb7b35d0dba7f8c8db62cc6d4a4c021adc5a2828301f159d40f82f60c0517c8 microshift-cert-manager-release-info-4.22.13-202609041025.p0.g0d02d40.assembly.4.22.13.el9.noarch.rpm SHA-256: 1da6d9449cbc84802e419ba68677a21244712db63b5aca41634f1aa086ba55f3 microshift-gateway-api-release-info-4.22.13-202609041025.p0.g0d02d40.assembly.4.22.13.el9.noarch.rpm SHA-256: c69e0ed6c3bba56a5aed37ad6d5b6085e745f80a6a9e10e5c5035e3dc62c5cd2 microshift-greenboot-4.22.13-202609041025.p0.g0d02d40.assembly.4.22.13.el9.noarch.rpm SHA-256: c303fb577936b8fe6c3e9ba29628b27de37062e05db56b780aa2a8ab73299492 microshift-low-latency-4.22.13-202609041025.p0.g0d02d40.assembly.4.22.13.el9.noarch.rpm SHA-256: ab82884b580963d2cbbb4635183523258092c870aa8307f5cf3f5d0d34dccca2 microshift-multus-release-info-4.22.13-202609041025.p0.g0d02d40.assembly.4.22.13.el9.noarch.rpm SHA-256: efb297d45edcd9e1a9c93e968917e0847ae0348166abd6eaa7cf9433d526be0d microshift-observability-4.22.13-202609041025.p0.g0d02d40.assembly.4.22.13.el9.noarch.rpm SHA-256: 2d708927e5219b6ec541af736e8fbe659bda02a11be852428078ab9d0fe9ed4b microshift-olm-release-info-4.22.13-202609041025.p0.g0d02d40.assembly.4.22.13.el9.noarch.rpm SHA-256: 2dcc961244aae472bdeb5bc792bb7d2c48e58ca0af024b51ed9813044fe9ba86 microshift-release-info-4.22.13-202609041025.p0.g0d02d40.assembly.4.22.13.el9.noarch.rpm SHA-256: a4ee01119e40268e3bfbd774d426a2a7deeda831fe1a85f0e387d84987ec2f10 microshift-selinux-4.22.13-202609041025.p0.g0d02d40.assembly.4.22.13.el9.noarch.rpm SHA-256: c1ed94dfa4218b6da1d835244cf465082843f2c8f5c27fedfa83d459b75aef47 microshift-sriov-rele