Red Hat Product Errata RHSA-2026:59999 - Security Advisory Issued: 2026-08-26 Updated: 2026-08-26 RHSA-2026:59999 - Security Advisory Overview Updated Packages Synopsis Important: isns-utils 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 isns-utils is now available for Red Hat Enterprise Linux 9.2 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 iSNS package contains the daemon and tools to setup a iSNS server, and iSNS client tools. The Internet Storage Name Service (iSNS) protocol allows automated discovery, management and configuration of iSCSI and Fibre Channel devices (using iFCP gateways) on a TCP/IP network. Security Fix(es): open-isns: open-iscsi: Denial of Service via double-free in iSNS attribute decoder (CVE-2026-55995) 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 9.2 x86_64 Red Hat Enterprise Linux Server for Power LE - Update Services for SAP Solutions 9.2 ppc64le Red Hat Enterprise Linux for x86_64 - Update Services for SAP Solutions 9.2 x86_64 Red Hat Enterprise Linux for ARM 64 - 4 years of updates 9.2 aarch64 Red Hat Enterprise Linux for IBM z Systems - 4 years of updates 9.2 s390x Red Hat Enterprise Linux for x86_64 - Extended Life Cycle 9.2 x86_64 Red Hat Enterprise Linux for ARM 64 - Extended Life Cycle 9.2 aarch64 Red Hat Enterprise Linux for Power, little endian - Extended Life Cycle 9.2 ppc64le Red Hat Enterprise Linux for IBM z Systems - Extended Life Cycle 9.2 s390x Fixes BZ - 2508414 - CVE-2026-55995 open-isns: open-iscsi: Denial of Service via double-free in iSNS attribute decoder CVEs CVE-2026-55995 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 9.2 SRPM isns-utils-0.101-4.el9_2.1.src.rpm SHA-256: 0d35af158e77c9d79796d7564132664d1d29a253fdecd0eebcda7af73bbdd666 x86_64 isns-utils-0.101-4.el9_2.1.x86_64.rpm SHA-256: d3cb3c0fb8810759569873319940969a821e905b200eca7155ede25756f888b2 isns-utils-debuginfo-0.101-4.el9_2.1.i686.rpm SHA-256: 0f65f6801ebf39c3543df9c58f120b1cc4f858198f012892b2fced785e614e63 isns-utils-debuginfo-0.101-4.el9_2.1.x86_64.rpm SHA-256: 3726e7ac311609c360a8191b313702819bfdff292590807b117566e69c04e4b2 isns-utils-debugsource-0.101-4.el9_2.1.i686.rpm SHA-256: e54a33043a93905bdae0e769cd195f519b8dca1859b2947f61d069d3352ae860 isns-utils-debugsource-0.101-4.el9_2.1.x86_64.rpm SHA-256: 66d00fa1edd6f056bdcb0d482b7e6dd6cb52ee04376aa88b960d3b56b890039b isns-utils-libs-0.101-4.el9_2.1.i686.rpm SHA-256: 02c8c3a5dc1bfb9c592f353e5ee2062b5e7af61d8804fa3a4da303d8874e6322 isns-utils-libs-0.101-4.el9_2.1.x86_64.rpm SHA-256: 032de931a6a514fa95fbdbef658660da90d382a227c273986c588e9cc18cc6fb isns-utils-libs-debuginfo-0.101-4.el9_2.1.i686.rpm SHA-256: 142a6b7bc608e283f196daaa63914ecfe11696b4f4118f9092459d6ba3647588 isns-utils-libs-debuginfo-0.101-4.el9_2.1.x86_64.rpm SHA-256: 09ec22e86b41c6027148b97215cbd2b9dcac1097f2ea524eb64d47107b2eec5f Red Hat Enterprise Linux Server for Power LE - Update Services for SAP Solutions 9.2 SRPM isns-utils-0.101-4.el9_2.1.src.rpm SHA-256: 0d35af158e77c9d79796d7564132664d1d29a253fdecd0eebcda7af73bbdd666 ppc64le isns-utils-0.101-4.el9_2.1.ppc64le.rpm SHA-256: 8177abfa7661676cd2c8a51c1b645db0f5680f389dd3787cc4a0e2645ac7297a isns-utils-debuginfo-0.101-4.el9_2.1.ppc64le.rpm SHA-256: 729dbfa5e50700c991351c512f35b77f6396f261752cddf41688dfdc07e41408 isns-utils-debugsource-0.101-4.el9_2.1.ppc64le.rpm SHA-256: 2c7c6f9541ce91fe626927eb47a8c9c862fb4040ea77762e3d835504e6fffb0f isns-utils-libs-0.101-4.el9_2.1.ppc64le.rpm SHA-256: 736e21342f489d28e682bc8a212ff7108c35a6219dec35857c2ba35685f67847 isns-utils-libs-debuginfo-0.101-4.el9_2.1.ppc64le.rpm SHA-256: 2ff686a07ed12effd20334b7e108a559e324cd07e9f321136bff0bfe5817c3c1 Red Hat Enterprise Linux for x86_64 - Update Services for SAP Solutions 9.2 SRPM isns-utils-0.101-4.el9_2.1.src.rpm SHA-256: 0d35af158e77c9d79796d7564132664d1d29a253fdecd0eebcda7af73bbdd666 x86_64 isns-utils-0.101-4.el9_2.1.x86_64.rpm SHA-256: d3cb3c0fb8810759569873319940969a821e905b200eca7155ede25756f888b2 isns-utils-debuginfo-0.101-4.el9_2.1.i686.rpm SHA-256: 0f65f6801ebf39c3543df9c58f120b1cc4f858198f012892b2fced785e614e63 isns-utils-debuginfo-0.101-4.el9_2.1.x86_64.rpm SHA-256: 3726e7ac311609c360a8191b313702819bfdff292590807b117566e69c04e4b2 isns-utils-debugsource-0.101-4.el9_2.1.i686.rpm SHA-256: e54a33043a93905bdae0e769cd195f519b8dca1859b2947f61d069d3352ae860 isns-utils-debugsource-0.101-4.el9_2.1.x86_64.rpm SHA-256: 66d00fa1edd6f056bdcb0d482b7e6dd6cb52ee04376aa88b960d3b56b890039b isns-utils-libs-0.101-4.el9_2.1.i686.rpm SHA-256: 02c8c3a5dc1bfb9c592f353e5ee2062b5e7af61d8804fa3a4da303d8874e6322 isns-utils-libs-0.101-4.el9_2.1.x86_64.rpm SHA-256: 032de931a6a514fa95fbdbef658660da90d382a227c273986c588e9cc18cc6fb isns-utils-libs-debuginfo-0.101-4.el9_2.1.i686.rpm SHA-256: 142a6b7bc608e283f196daaa63914ecfe11696b4f4118f9092459d6ba3647588 isns-utils-libs-debuginfo-0.101-4.el9_2.1.x86_64.rpm SHA-256: 09ec22e86b41c6027148b97215cbd2b9dcac1097f2ea524eb64d47107b2eec5f Red Hat Enterprise Linux for ARM 64 - 4 years of updates 9.2 SRPM isns-utils-0.101-4.el9_2.1.src.rpm SHA-256: 0d35af158e77c9d79796d7564132664d1d29a253fdecd0eebcda7af73bbdd666 aarch64 isns-utils-0.101-4.el9_2.1.aarch64.rpm SHA-256: b8bda5ccd1448521345abeaab8ae01685f856045f7f441e81d6b4add9cbff4f8 isns-utils-debuginfo-0.101-4.el9_2.1.aarch64.rpm SHA-256: 9516f5320870d4430a61577472b4f867441ce1aafbbd34e930ccd7918e92add2 isns-utils-debugsource-0.101-4.el9_2.1.aarch64.rpm SHA-256: 522d1785d390255e86df80dcd953a650ecdaf1e9fceb4a9ad72b3e93490c9f86 isns-utils-libs-0.101-4.el9_2.1.aarch64.rpm SHA-256: 4de7612b8417499cd590fc79dd19beac911ff47c92bebca2abd7ba82cde2ef46 isns-utils-libs-debuginfo-0.101-4.el9_2.1.aarch64.rpm SHA-256: 0ef8a56393f6467c79b486abd6d54c57c0a941d4079cf5f54aa942dd1ea4dada Red Hat Enterprise Linux for IBM z Systems - 4 years of updates 9.2 SRPM isns-utils-0.101-4.el9_2.1.src.rpm SHA-256: 0d35af158e77c9d79796d7564132664d1d29a253fdecd0eebcda7af73bbdd666 s390x isns-utils-0.101-4.el9_2.1.s390x.rpm SHA-256: 908ad155ff438bc6a5a49b389f82e58948ffde57df97d2cd5f9540a3e0b8cc12 isns-utils-debuginfo-0.101-4.el9_2.1.s390x.rpm SHA-256: a756d152abb87c61ace19bcb9ff010e177f3ddbc942aa20f6c91bdfd700daf30 isns-utils-debugsource-0.101-4.el9_2.1.s390x.rpm SHA-256: 4e9e591166dea2677eb4c4172f3ab2cd9a0a9203a5664667b1f535fb85da68cc isns-utils-libs-0.101-4.el9_2.1.s390x.rpm SHA-256: 263a5200faa29547a7c90575acd546584e039d84530983729ad8e054892be331 isns-utils-libs-debuginfo-0.101-4.el9_2.1.s390x.rpm SHA-256: ab0cf0ed1cd84649103c71dd806b8b1cdb554a61d8d99494b9365e1256134be1 Red Hat Enterprise Linux for x86_64 - Extended Life Cycle 9.2 SRPM isns-utils-0.101-4.el9_2.1.src.rpm SHA-256: 0d35af158e77c9d79796d7564132664d1d29a253fdecd0eebcda7af73bbdd666 x86_64 isns-utils-0.101-4.el9_2.1.x86_64.rpm SHA-256: d3cb3c0fb8810759569873319940969a821e905b200eca7155ede25756f888b2 isns-utils-debuginfo-0.101-4.el9_2.1.i686.rpm SHA-256: 0f65f6801ebf39c3543df9c58f120b1cc4f858198f012892b2fced785e614e63 isns-utils-debuginfo-0.101-4.el9_2.1.x86_64.rpm SHA-256: 3726e7ac311609c360a8191b313702819bfdff292590807b117566e69c04e4b2 isns-utils-debugsource-0.101-4.el9_2.1.i686.rpm SHA-256: e54a33043a93905bdae0e769cd195f519b8dca1859b2947f61d069d3352ae860 isns-utils-debugsource-0.101-4.el9_2.1.x86_64.rpm SHA-256: 66d00fa1edd6f056bdcb0d482b7e6dd6cb52ee04376aa88b960d3b56b890039b isns-utils-libs-0.101-4.el9_2.1.i686.rpm SHA-256: 02c8c3a5dc1bfb9c592f353e5ee2062b5e7af61d8804fa3a4da303d8874e6322 isns-utils-libs-0.101-4.el9_2.1.x86_64.rpm SHA-256: 032de931a6a514fa95fbdbef658660da90d382a227c273986c588e9cc18cc6fb isns-utils-libs-debuginfo-0.101-4.el9_2.1.i686.rpm SHA-256: 142a6b7bc608e283f196daaa63914ecfe11696b4f4118f9092459d6ba3647588 isns-utils-libs-debuginfo-0.101-4.el9_2.1.x86_64.rpm SHA-256: 09ec22e86b41c6027148b97215cbd2b9dcac1097f2ea524eb64d47107b2eec5f Red Hat Enterprise Linux for ARM 64 - Extended Life Cycle 9.2 SRPM isns-utils-0.101-4.el9_2.1.src.rpm SHA-256: 0d35af158e77c9d79796d7564132664d1d29a253fdecd0eebcda7af73bbdd666 aarch64 isns-utils-0.101-4.el9_2.1.aarch64.rpm SHA-256: b8bda5ccd1448521345abeaab8ae01685f856045f7f441e81d6b4add9cbff4f8 isns-utils-debuginfo-0.101-4.el9_2.1.aarch64.rpm SHA-256: 9516f5320870d4430a61577472b4f867441ce1aafbbd34e930ccd7918e92add2 isns-utils-debugsource-0.101-4.el9_2.1.aarch64.rpm SHA-256: 522d1785d390255e86df80dcd953a650ecdaf1e9fceb4a9ad72b3e93490c9f86 isns-utils-libs-0.101-4.el9_2.1.aarch64.rpm SHA-256: 4de7612b8417499cd590fc79dd19beac911ff47c92bebca2abd7ba82cde2ef46 isns-utils-libs-debuginfo-0.101-4.el9_2.1.aarch64.rpm SHA-256: 0ef8a56393f6467c79b486abd6d54c57c0a941d4079cf5f54aa942dd1ea4dada Red Hat Enterprise Linux for Power, little endian - Extended Life Cycle 9.2 SRPM isns-utils-0.101-4.el9_2.1.src.rpm SHA-256: 0d35af158e77c9d79796d7564132664d1d29a253fdecd0eebcda7af73bbdd666 ppc64le isns-utils-0.101-4.el9_2.1.ppc64le.rpm SHA-256: 8177abfa7661676cd2c8a51c1b645db0f5680f389dd3787cc4a0e2645ac7297a isns-utils-debuginfo-0.101-4.el9_2.1.ppc64le.rpm SHA-256: 729dbfa5e50700c991351c512f35b77f6396f261752cddf41688dfdc07e41408 isns-utils-debugsource-0.101-4.el9_2.1.ppc64le.rpm SHA-256: 2c7c6f9541ce91fe626927