Red Hat Product Errata RHSA-2026:58547 - Security Advisory Issued: 2026-08-24 Updated: 2026-08-24 RHSA-2026:58547 - Security Advisory Overview Updated Packages Synopsis Important: fence-agents 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 fence-agents 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 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 fence-agents packages provide a collection of scripts for handling remote power management for cluster devices. They allow failed or unreachable nodes to be forcibly restarted and removed from the cluster. Security Fix(es): pyasn1: pyasn1: Denial of Service via crafted ASN.1 REAL values (CVE-2026-59886) 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 High Availability 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 High Availability 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 High Availability for ARM 64 - 4 years of updates 9.4 aarch64 Red Hat Enterprise Linux High Availability for IBM z Systems - 4 years of updates 9.4 s390x Red Hat Enterprise Linux Resilient Storage for x86_64 - 4 years of updates 9.4 x86_64 Red Hat Enterprise Linux Resilient Storage for Power, little endian - 4 years of updates 9.4 ppc64le Red Hat Enterprise Linux Resilient Storage 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 Red Hat Enterprise Linux High Availability for ARM 64 - Extended Life Cycle 9.4 aarch64 Red Hat Enterprise Linux High Availability for Power, little endian - Extended Life Cycle 9.4 ppc64le Red Hat Enterprise Linux High Availability for IBM z Systems - Extended Life Cycle 9.4 s390x Red Hat Enterprise Linux High Availability for x86_64 - Extended Life Cycle 9.4 x86_64 Red Hat Enterprise Linux Resilient Storage for Power, little endian - Extended Life Cycle 9.4 ppc64le Red Hat Enterprise Linux Resilient Storage for IBM z Systems - Extended Life Cycle 9.4 s390x Red Hat Enterprise Linux Resilient Storage for x86_64 - Extended Life Cycle 9.4 x86_64 Fixes BZ - 2500041 - CVE-2026-59886 pyasn1: pyasn1: Denial of Service via crafted ASN.1 REAL values CVEs CVE-2026-59886 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 Server - AUS 9.4 SRPM fence-agents-4.10.0-62.el9_4.29.src.rpm SHA-256: ce1c688ef5cbb9fda1431135aef904e55c2149d6dc37e4b031cd723942a1dc2f x86_64 fence-agents-common-4.10.0-62.el9_4.29.noarch.rpm SHA-256: fb7f5e2f7960d3b2d2a42a6fce6cfe8f776186ebbf78cd6d262fed233e630145 fence-agents-compute-4.10.0-62.el9_4.29.x86_64.rpm SHA-256: 1ffa4d945bdeca23f3c8be1cfb13c123f1f3cb0866f70900863cae2dc98e0fe0 fence-agents-debuginfo-4.10.0-62.el9_4.29.x86_64.rpm SHA-256: 7f7abe023e87a3030f7671a550706ddbc1bd8e470121eb2f556ea98f5edb2ea3 fence-agents-debugsource-4.10.0-62.el9_4.29.x86_64.rpm SHA-256: 8b3dac1042ba9c3d046204700223c99d7da326c87810015cac4a101a0a25d964 fence-agents-ibm-powervs-4.10.0-62.el9_4.29.noarch.rpm SHA-256: bdd95dbdf9361493eebe82269fb1a87adb83e4ac695bae1300581072d5283c41 fence-agents-ibm-vpc-4.10.0-62.el9_4.29.noarch.rpm SHA-256: 3e72960987137a047b31d1341b50674d06a7937cb6dd66f7c92a813f108260a0 fence-agents-kdump-debuginfo-4.10.0-62.el9_4.29.x86_64.rpm SHA-256: 6c12563cebf8bd603f2978768408dffb774add5e10eb050e09efafa72258f59a fence-agents-kubevirt-4.10.0-62.el9_4.29.x86_64.rpm SHA-256: 9c338259134b439e92da751c71d824010afce57981020ecc2e8ac47eadc88cd0 fence-agents-kubevirt-debuginfo-4.10.0-62.el9_4.29.x86_64.rpm SHA-256: 882cbf635e2da1cf7f5a50d4fc270a0eba2998ddfa8eb154820df693517fed6e fence-agents-virsh-4.10.0-62.el9_4.29.noarch.rpm SHA-256: 4c89531203941eac55e1593fbce734c992129b18804ca088e5ee7a48a5f792f7 fence-virt-4.10.0-62.el9_4.29.x86_64.rpm SHA-256: 1f90995bdc5b34c7e623c3f24288669295822e81ccca546533c8d8719c0604a0 fence-virt-debuginfo-4.10.0-62.el9_4.29.x86_64.rpm SHA-256: f274fd484b3628f3fa317e28b3c587b0245f4aedf8a4394f599a6c65b2a06abd fence-virtd-4.10.0-62.el9_4.29.x86_64.rpm SHA-256: eeb729b723e369cdb0be28f02bb9247b81a4c7203e342d8ebff9c2e30ded53f0 fence-virtd-cpg-4.10.0-62.el9_4.29.x86_64.rpm SHA-256: 338e290bfa8773b2c7bbd466494c0912f335c55bc990958f731f85eaa006d855 fence-virtd-cpg-debuginfo-4.10.0-62.el9_4.29.x86_64.rpm SHA-256: ae4178a1c18f75ae58b5db2de0707b4b646d458779af64f78da3da9617077d47 fence-virtd-debuginfo-4.10.0-62.el9_4.29.x86_64.rpm SHA-256: 517e372667f7b50ce47f6019d4a45d67dcfe1c367872b89bb909378ee9aa2677 fence-virtd-libvirt-4.10.0-62.el9_4.29.x86_64.rpm SHA-256: 53ecbc889159048b2c1ac66b7d13b2734fba4e99c042f046b5cdc4e73a10b89f fence-virtd-libvirt-debuginfo-4.10.0-62.el9_4.29.x86_64.rpm SHA-256: 04f1f170b0fcb431c0246c5dd69f3acd8664ac9a0d16c07b869a9c0e6f5724c1 fence-virtd-multicast-4.10.0-62.el9_4.29.x86_64.rpm SHA-256: 855f2e6af81b3f60f33b67834659dbccf82c35f1abe2683fef1dc013d5074ec4 fence-virtd-multicast-debuginfo-4.10.0-62.el9_4.29.x86_64.rpm SHA-256: 36f2bd8eb6bb919ab2b7031bafea769ea97cc796ace4337ff98f25d540734240 fence-virtd-serial-4.10.0-62.el9_4.29.x86_64.rpm SHA-256: 52c3247e45392563b47dbba74db76d8925f656abccc116058baeab2a84dd7650 fence-virtd-serial-debuginfo-4.10.0-62.el9_4.29.x86_64.rpm SHA-256: efa46470f21334d6c0a59ce46324875cd1efc884f8f99d2155583fb9ee310f60 fence-virtd-tcp-4.10.0-62.el9_4.29.x86_64.rpm SHA-256: a143c4f14be7f88700172174b759d0cfc8b57a242542f1797394334b36d04cf2 fence-virtd-tcp-debuginfo-4.10.0-62.el9_4.29.x86_64.rpm SHA-256: dbded77a6a32f9053a4d6f85ee8707e098b0f4b63d9f6d56191b2a425822cb9f ha-cloud-support-debuginfo-4.10.0-62.el9_4.29.x86_64.rpm SHA-256: 31bdd1a01138c73518f868d1de59c421df4d8d88c98105edfb1bee92d24bf3c3 Red Hat Enterprise Linux Server for Power LE - Update Services for SAP Solutions 9.4 SRPM fence-agents-4.10.0-62.el9_4.29.src.rpm SHA-256: ce1c688ef5cbb9fda1431135aef904e55c2149d6dc37e4b031cd723942a1dc2f ppc64le fence-agents-common-4.10.0-62.el9_4.29.noarch.rpm SHA-256: fb7f5e2f7960d3b2d2a42a6fce6cfe8f776186ebbf78cd6d262fed233e630145 fence-agents-compute-4.10.0-62.el9_4.29.ppc64le.rpm SHA-256: 2da3e51dfc27bc5524f60d806a448d5ebb32ceccd2428f10fb1a3654a262e079 fence-agents-debuginfo-4.10.0-62.el9_4.29.ppc64le.rpm SHA-256: 115fe7fcf747154f6e50b634382aaa165cb7229569c37c29d4c3225b35c0e8f4 fence-agents-debugsource-4.10.0-62.el9_4.29.ppc64le.rpm SHA-256: 4aec064d700d0088819eb355b983fa6f35c1de5860b317c447adee013c6570ee fence-agents-ibm-powervs-4.10.0-62.el9_4.29.noarch.rpm SHA-256: bdd95dbdf9361493eebe82269fb1a87adb83e4ac695bae1300581072d5283c41 fence-agents-ibm-vpc-4.10.0-62.el9_4.29.noarch.rpm SHA-256: 3e72960987137a047b31d1341b50674d06a7937cb6dd66f7c92a813f108260a0 fence-agents-kdump-debuginfo-4.10.0-62.el9_4.29.ppc64le.rpm SHA-256: e5e0d22427b1221602d5b385b202d20d02dfc18207ac26d1f11c0dc0d88049c0 fence-agents-kubevirt-4.10.0-62.el9_4.29.ppc64le.rpm SHA-256: cc6e2bdeb93cc87fd3f91b3006096c26c0d14013659b16cb0748af719bcdf233 fence-agents-kubevirt-debuginfo-4.10.0-62.el9_4.29.ppc64le.rpm SHA-256: bdcc39a0b0aaf1b85fb31ac7c31b5f98e058420d0718d89d8c980f81af5f18c3 fence-agents-virsh-4.10.0-62.el9_4.29.noarch.rpm SHA-256: 4c89531203941eac55e1593fbce734c992129b18804ca088e5ee7a48a5f792f7 Red Hat Enterprise Linux High Availability for Power LE - Update Services for SAP Solutions 9.4 SRPM ppc64le fence-agents-all-4.10.0-62.el9_4.29.ppc64le.rpm SHA-256: 3f02f0109c0aca9b924b6acf216f26aa2c3c59efd5024c85f4d03853e26cd284 fence-agents-amt-ws-4.10.0-62.el9_4.29.noarch.rpm SHA-256: 26c31af01675f3d4946283e1ab37d082cfd9b58db03d61418bcfb5e21c627f20 fence-agents-apc-4.10.0-62.el9_4.29.noarch.rpm SHA-256: 536dd72f8e040affcc2e160cafe2de5dc7185a281833b1d566d929e0b221d760 fence-agents-apc-snmp-4.10.0-62.el9_4.29.noarch.rpm SHA-256: bf55f5e02b6c4afaaeb1c2b065b1188d7498a1ef5c064710b9eec72502b9ef9f fence-agents-bladecenter-4.10.0-62.el9_4.29.noarch.rpm SHA-256: 7eed46b1d9500e52e7151314c80f1ad377b58fb183c0d87e6ada5a6518b899f7 fence-agents-brocade-4.10.0-62.el9_4.29.noarch.rpm SHA-256: 083792a18d00382c039577caebe918cd615fd18576d3520125ac0a157b291570 fence-agents-cisco-mds-4.10.0-62.el9_4.29.noarch.rpm SHA-256: 315fad30ca9f8fb6ff07df040a5482d3162090307f6fa465892ed2cd073cacda fence-agents-cisco-ucs-4.10.0-62.el9_4.29.noarch.rpm SHA-256: 29ea52299409eb6d4b127dc08e25284d364b25d6a390a1c88c114537fb172919 fence-agents-debuginfo-4.10.0-62.el9_4.29.ppc64le.rpm SHA-256: 115fe7fcf747154f6e50b634382aaa165cb7229569c37c29d4c3225b35c0e8f4 fence-agents-debugsource-4.10.0-62.el9_4.29.ppc64le.rpm SHA-256: 4aec064d700d0088819eb355b983fa6f35c1de5860b317c447adee013c6570ee fence-agents-drac5-4.10.0-62.el9_4.29.noarch.rpm SHA-256: 522108729763c565c2c7998e