Red Hat Product Errata RHSA-2026:19055 - Security Advisory Issued: 2026-05-19 Updated: 2026-05-19 RHSA-2026:19055 - Security Advisory Overview Updated Packages Synopsis Important: rhc 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 rhc is now available for Red Hat Enterprise Linux 10. 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 rhc is a client tool and daemon that connects the system to Red Hat hosted services enabling system and subscription management. Security Fix(es): 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 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 - 2445356 - CVE-2026-25679 net/url: Incorrect parsing of IPv6 host literals in net/url CVEs 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 10 SRPM rhc-0.3.8-3.el10_2.src.rpm SHA-256: b52ac496eb269385cff637c8b1b74e888fffca5891364daf57dd55618f4927a7 x86_64 rhc-0.3.8-3.el10_2.x86_64.rpm SHA-256: 027f7317e56588e6c87baa0da6e4f88670eb0ce7ddaf9e474768548d9d4343e8 rhc-debuginfo-0.3.8-3.el10_2.x86_64.rpm SHA-256: 6457a532afa50be62d17a2fad9e624157559077cd63a67041f26132c1a97f88a rhc-debugsource-0.3.8-3.el10_2.x86_64.rpm SHA-256: cf55bf8dd08cf2611c57c70d3b40d2f8e0925f479b62fe4f4fc602032915628b Red Hat Enterprise Linux for x86_64 - Extended Update Support 10.2 SRPM rhc-0.3.8-3.el10_2.src.rpm SHA-256: b52ac496eb269385cff637c8b1b74e888fffca5891364daf57dd55618f4927a7 x86_64 rhc-0.3.8-3.el10_2.x86_64.rpm SHA-256: 027f7317e56588e6c87baa0da6e4f88670eb0ce7ddaf9e474768548d9d4343e8 rhc-debuginfo-0.3.8-3.el10_2.x86_64.rpm SHA-256: 6457a532afa50be62d17a2fad9e624157559077cd63a67041f26132c1a97f88a rhc-debugsource-0.3.8-3.el10_2.x86_64.rpm SHA-256: cf55bf8dd08cf2611c57c70d3b40d2f8e0925f479b62fe4f4fc602032915628b Red Hat Enterprise Linux for IBM z Systems 10 SRPM rhc-0.3.8-3.el10_2.src.rpm SHA-256: b52ac496eb269385cff637c8b1b74e888fffca5891364daf57dd55618f4927a7 s390x rhc-0.3.8-3.el10_2.s390x.rpm SHA-256: 1c36a2f63522c76122f625be08779900b45ed3e399bfd892fd6fcd4fef6b09ca rhc-debuginfo-0.3.8-3.el10_2.s390x.rpm SHA-256: eed3288101c2385eb5e1c6a0f26c8bce5e9971a196790a2f22afdae778af2c56 rhc-debugsource-0.3.8-3.el10_2.s390x.rpm SHA-256: dd7d491cf3d0e147a0b9c58418174010a188b7ca3ba4bf13616c15cdeaea4ad6 Red Hat Enterprise Linux for IBM z Systems - Extended Update Support 10.2 SRPM rhc-0.3.8-3.el10_2.src.rpm SHA-256: b52ac496eb269385cff637c8b1b74e888fffca5891364daf57dd55618f4927a7 s390x rhc-0.3.8-3.el10_2.s390x.rpm SHA-256: 1c36a2f63522c76122f625be08779900b45ed3e399bfd892fd6fcd4fef6b09ca rhc-debuginfo-0.3.8-3.el10_2.s390x.rpm SHA-256: eed3288101c2385eb5e1c6a0f26c8bce5e9971a196790a2f22afdae778af2c56 rhc-debugsource-0.3.8-3.el10_2.s390x.rpm SHA-256: dd7d491cf3d0e147a0b9c58418174010a188b7ca3ba4bf13616c15cdeaea4ad6 Red Hat Enterprise Linux for Power, little endian 10 SRPM rhc-0.3.8-3.el10_2.src.rpm SHA-256: b52ac496eb269385cff637c8b1b74e888fffca5891364daf57dd55618f4927a7 ppc64le rhc-0.3.8-3.el10_2.ppc64le.rpm SHA-256: c8b3e82f931176ba44f071ce59aa9a802653cfbba44bb65458ca713c16fe37aa rhc-debuginfo-0.3.8-3.el10_2.ppc64le.rpm SHA-256: 8c20de170ac4f32f2ad40cba7afe7f32d803042717168079fbb6e12b25ef92a0 rhc-debugsource-0.3.8-3.el10_2.ppc64le.rpm SHA-256: 9504fdb19f67dbee0ef4f6094a2f9b550f174c8205d9475f141d28498ee31c3d Red Hat Enterprise Linux for Power, little endian - Extended Update Support 10.2 SRPM rhc-0.3.8-3.el10_2.src.rpm SHA-256: b52ac496eb269385cff637c8b1b74e888fffca5891364daf57dd55618f4927a7 ppc64le rhc-0.3.8-3.el10_2.ppc64le.rpm SHA-256: c8b3e82f931176ba44f071ce59aa9a802653cfbba44bb65458ca713c16fe37aa rhc-debuginfo-0.3.8-3.el10_2.ppc64le.rpm SHA-256: 8c20de170ac4f32f2ad40cba7afe7f32d803042717168079fbb6e12b25ef92a0 rhc-debugsource-0.3.8-3.el10_2.ppc64le.rpm SHA-256: 9504fdb19f67dbee0ef4f6094a2f9b550f174c8205d9475f141d28498ee31c3d Red Hat Enterprise Linux for ARM 64 10 SRPM rhc-0.3.8-3.el10_2.src.rpm SHA-256: b52ac496eb269385cff637c8b1b74e888fffca5891364daf57dd55618f4927a7 aarch64 rhc-0.3.8-3.el10_2.aarch64.rpm SHA-256: 3efb4f5fd8230050fec578577f0882c5fe5f3f4a83f9fd8fa21c8c5aca5eeb41 rhc-debuginfo-0.3.8-3.el10_2.aarch64.rpm SHA-256: eb27ed426761a098827b00a7a631082b9e1ee49f2faf5de8eed93bec7a3508da rhc-debugsource-0.3.8-3.el10_2.aarch64.rpm SHA-256: 3c6be6cc6329b219de6d554fa9933ebca74c6d46961779be25f40daa644defd9 Red Hat Enterprise Linux for ARM 64 - Extended Update Support 10.2 SRPM rhc-0.3.8-3.el10_2.src.rpm SHA-256: b52ac496eb269385cff637c8b1b74e888fffca5891364daf57dd55618f4927a7 aarch64 rhc-0.3.8-3.el10_2.aarch64.rpm SHA-256: 3efb4f5fd8230050fec578577f0882c5fe5f3f4a83f9fd8fa21c8c5aca5eeb41 rhc-debuginfo-0.3.8-3.el10_2.aarch64.rpm SHA-256: eb27ed426761a098827b00a7a631082b9e1ee49f2faf5de8eed93bec7a3508da rhc-debugsource-0.3.8-3.el10_2.aarch64.rpm SHA-256: 3c6be6cc6329b219de6d554fa9933ebca74c6d46961779be25f40daa644defd9 Red Hat Enterprise Linux for ARM 64 - 4 years of updates 10.2 SRPM rhc-0.3.8-3.el10_2.src.rpm SHA-256: b52ac496eb269385cff637c8b1b74e888fffca5891364daf57dd55618f4927a7 aarch64 rhc-0.3.8-3.el10_2.aarch64.rpm SHA-256: 3efb4f5fd8230050fec578577f0882c5fe5f3f4a83f9fd8fa21c8c5aca5eeb41 rhc-debuginfo-0.3.8-3.el10_2.aarch64.rpm SHA-256: eb27ed426761a098827b00a7a631082b9e1ee49f2faf5de8eed93bec7a3508da rhc-debugsource-0.3.8-3.el10_2.aarch64.rpm SHA-256: 3c6be6cc6329b219de6d554fa9933ebca74c6d46961779be25f40daa644defd9 Red Hat Enterprise Linux for IBM z Systems - 4 years of updates 10.2 SRPM rhc-0.3.8-3.el10_2.src.rpm SHA-256: b52ac496eb269385cff637c8b1b74e888fffca5891364daf57dd55618f4927a7 s390x rhc-0.3.8-3.el10_2.s390x.rpm SHA-256: 1c36a2f63522c76122f625be08779900b45ed3e399bfd892fd6fcd4fef6b09ca rhc-debuginfo-0.3.8-3.el10_2.s390x.rpm SHA-256: eed3288101c2385eb5e1c6a0f26c8bce5e9971a196790a2f22afdae778af2c56 rhc-debugsource-0.3.8-3.el10_2.s390x.rpm SHA-256: dd7d491cf3d0e147a0b9c58418174010a188b7ca3ba4bf13616c15cdeaea4ad6 Red Hat Enterprise Linux for Power, little endian - 4 years of support 10.2 SRPM rhc-0.3.8-3.el10_2.src.rpm SHA-256: b52ac496eb269385cff637c8b1b74e888fffca5891364daf57dd55618f4927a7 ppc64le rhc-0.3.8-3.el10_2.ppc64le.rpm SHA-256: c8b3e82f931176ba44f071ce59aa9a802653cfbba44bb65458ca713c16fe37aa rhc-debuginfo-0.3.8-3.el10_2.ppc64le.rpm SHA-256: 8c20de170ac4f32f2ad40cba7afe7f32d803042717168079fbb6e12b25ef92a0 rhc-debugsource-0.3.8-3.el10_2.ppc64le.rpm SHA-256: 9504fdb19f67dbee0ef4f6094a2f9b550f174c8205d9475f141d28498ee31c3d Red Hat Enterprise Linux for x86_64 - 4 years of updates 10.2 SRPM rhc-0.3.8-3.el10_2.src.rpm SHA-256: b52ac496eb269385cff637c8b1b74e888fffca5891364daf57dd55618f4927a7 x86_64 rhc-0.3.8-3.el10_2.x86_64.rpm SHA-256: 027f7317e56588e6c87baa0da6e4f88670eb0ce7ddaf9e474768548d9d4343e8 rhc-debuginfo-0.3.8-3.el10_2.x86_64.rpm SHA-256: 6457a532afa50be62d17a2fad9e624157559077cd63a67041f26132c1a97f88a rhc-debugsource-0.3.8-3.el10_2.x86_64.rpm SHA-256: cf55bf8dd08cf2611c57c70d3b40d2f8e0925f479b62fe4f4fc602032915628b Red Hat Enterprise Linux for x86_64 - Extended Life Cycle 10.2 SRPM rhc-0.3.8-3.el10_2.src.rpm SHA-256: b52ac496eb269385cff637c8b1b74e888fffca5891364daf57dd55618f4927a7 x86_64 rhc-0.3.8-3.el10_2.x86_64.rpm SHA-256: 027f7317e56588e6c87baa0da6e4f88670eb0ce7ddaf9e474768548d9d4343e8 rhc-debuginfo-0.3.8-3.el10_2.x86_64.rpm SHA-256: 6457a532afa50be62d17a2fad9e624157559077cd63a67041f26132c1a97f88a rhc-debugsource-0.3.8-3.el10_2.x86_64.rpm SHA-256: cf55bf8dd08cf2611c57c70d3b40d2f8e0925f479b62fe4f4fc602032915628b Red Hat Enterprise Linux for ARM 64 - Extended Life Cycle 10.2 SRPM rhc-0.3.8-3.el10_2.src.rpm SHA-256: b52ac496eb269385cff637c8b1b74e888fffca5891364daf57dd55618f4927a7 aarch64 rhc-0.3.8-3.el10_2.aarch64.rpm SHA-256: 3efb4f5fd8230050fec578577f0882c5fe5f3f4a83f9fd8fa21c8c5aca5eeb41 rhc-debuginfo-0.3.8-3.el10_2.aarch64.rpm SHA-256: eb27ed426761a098827b00a7a631082b9e1ee49f2faf5de8eed93bec7a3508da rhc-debugsource-0.3.8-3.el10_2.aarch64.rpm SHA-256: 3c6be6cc6329b219de6d554fa9933ebca74c6d46961779be25f40daa644defd9 Red Hat Enterprise Linux for Power, little endian - Extended Life Cycle 10.2 SRPM rhc-0.3.8-3.el10_2.src.rpm SHA-256: b52ac496eb269385cff637c8b