Red Hat Product Errata RHSA-2026:2483 - Security Advisory Issued: 2026-02-10 Updated: 2026-02-10 RHSA-2026:2483 - Security Advisory 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 8.4 Advanced Mission Critical Update Support and Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-On. 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 due to memory exhaustion from malformed RELATIVE-OID (CVE-2026-23490) 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 Extension 8.4 x86_64 Red Hat Enterprise Linux Server - AUS 8.4 x86_64 Red Hat Enterprise Linux High Availability for x86_64 - Advanced Update Support 8.4 x86_64 Red Hat Enterprise Linux High Availability for x86_64 - Extended Update Support Extension 8.4 x86_64 Fixes BZ - 2430472 - CVE-2026-23490 pyasn1: pyasn1: Denial of Service due to memory exhaustion from malformed RELATIVE-OID CVEs CVE-2026-23490 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 Extension 8.4 SRPM fence-agents-4.2.1-65.el8_4.27.src.rpm SHA-256: 2c74415b13cd854a788bc589edee578c95ca391b8a562c89bc596fbca67ff3e9 x86_64 fence-agents-aliyun-debuginfo-4.2.1-65.el8_4.27.x86_64.rpm SHA-256: cde126848c5f280917c4a73db2f85d593fe2a5acc99424489eecfd5d748b9022 fence-agents-all-4.2.1-65.el8_4.27.x86_64.rpm SHA-256: df284a864e727a90f5a1276c92f37160b923cddfa9afdef6a46743fcce7e7a10 fence-agents-amt-ws-4.2.1-65.el8_4.27.noarch.rpm SHA-256: a0d159b11aff745f912b429e5a3474f8c6fb08106f7ce05ccefbd0f68e44d645 fence-agents-apc-4.2.1-65.el8_4.27.noarch.rpm SHA-256: a9c3d6a517fa5a4d050453be83faf51edff3737c7c3976810f160cf894f3ac64 fence-agents-apc-snmp-4.2.1-65.el8_4.27.noarch.rpm SHA-256: 4ad3fb2cbb46841aeed7d00ff730946068c4b4e020addd5b4cf8fd75ff5a08bf fence-agents-bladecenter-4.2.1-65.el8_4.27.noarch.rpm SHA-256: 50b5fdc430e9150853c32b5aa606bb22f0c6fed414a7f970be69e812234a3ddb fence-agents-brocade-4.2.1-65.el8_4.27.noarch.rpm SHA-256: 6e85263636095f35809266e9a57b581a2e51921edc777907c02d9309438a7c8c fence-agents-cisco-mds-4.2.1-65.el8_4.27.noarch.rpm SHA-256: 35da35a141dc077d808f960732b84696ccff1dee0a71ace973d682814a1ef77f fence-agents-cisco-ucs-4.2.1-65.el8_4.27.noarch.rpm SHA-256: 5d2c2f121f5ee5597b6386a70e3dce5c8f7c3ba9eab947c7ed6fb040f271fd08 fence-agents-common-4.2.1-65.el8_4.27.noarch.rpm SHA-256: 9bbb01cbadc61d7edb5db0dff673a855977ec1cf495dd59f779821602d64ba86 fence-agents-compute-4.2.1-65.el8_4.27.noarch.rpm SHA-256: 2f9ceae41209631b173a6dd765c218f161bc7593126b4eff367569a17a4a63f5 fence-agents-debuginfo-4.2.1-65.el8_4.27.x86_64.rpm SHA-256: 75b9b29dcaf34a66439102f7a6999b461d903a07e46d652b87e70e221f4ba96d fence-agents-debugsource-4.2.1-65.el8_4.27.x86_64.rpm SHA-256: 34919ae9f9c30bf6a875010eced2ba74ef61687466a3bd2aa55baa9810bf5c32 fence-agents-drac5-4.2.1-65.el8_4.27.noarch.rpm SHA-256: dcdb0938d51d22f786d2befb75aac2a559f46fc9d0c7cac5fe14168a46e53cf2 fence-agents-eaton-snmp-4.2.1-65.el8_4.27.noarch.rpm SHA-256: 63e8d73d2aa168820c4634c2bef777715d272bce7eb132d788b22b4597a18572 fence-agents-emerson-4.2.1-65.el8_4.27.noarch.rpm SHA-256: 5690b17cb122f6c585007d39b1a9a79f48f88c9dc7f2f4a326911c43db16c182 fence-agents-eps-4.2.1-65.el8_4.27.noarch.rpm SHA-256: 6a746b9a29c5c5e0e47acf2bf042884ee2bbff36708d270855e9518fbc96ce37 fence-agents-heuristics-ping-4.2.1-65.el8_4.27.noarch.rpm SHA-256: cf1fbd5eaf619442a2aecf5aa850e1d0b82d4a2221ddd03414ca66c5b4910b12 fence-agents-hpblade-4.2.1-65.el8_4.27.noarch.rpm SHA-256: 5c48355d12e591b02ece6ffa38243fafbcfcfecdd6407e5b7592c0925b514728 fence-agents-ibmblade-4.2.1-65.el8_4.27.noarch.rpm SHA-256: 2b106196462ebac312f118dc5831061bd977375c43895031a533306c2255575f fence-agents-ifmib-4.2.1-65.el8_4.27.noarch.rpm SHA-256: 8e11c8b39f453c2150e28978a9e6d1663cc2afcd28d58808c6aa35236c701fd4 fence-agents-i