{"id":"RLSA-2026:86594","summary":"Critical: .NET 8.0 security, bug fix, and enhancement update","details":".NET is a fast, lightweight and modular platform for creating cross platform applications that work on Linux, macOS and Windows.  It particularly focuses on creating console applications, web applications and micro-services.  .NET contains a runtime conforming to .NET Standards a set of framework libraries, an SDK containing compilers and a 'dotnet' application to drive everything.\n\nSDK version: 8.0.132\nRuntime version: 8.0.32\n\nSecurity Fix(es):\n\n* dotnet10.0: dotnet9.0: dotnet: dotnet8.0: .NET Denial of Service Vulnerability (CVE-2026-58280)\n\n* dotnet10.0: dotnet8.0: dotnet9.0: dotnet: .NET Information Disclosure Vulnerability (CVE-2026-66822)\n\n* dotnet9.0: dotnet: dotnet10.0: dotnet8.0: .NET Denial of Service Vulnerability (CVE-2026-69651)\n\n* dotnet8.0: dotnet10.0: dotnet: dotnet9.0: ASP.NET Core Denial of Service Vulnerability (CVE-2026-70159)\n\n* dotnet10.0: dotnet8.0: dotnet9.0: ASP.NET Core Elevation of Privilege Vulnerability (CVE-2026-70175)\n\n* dotnet10.0: dotnet8.0: dotnet9.0: ASP.NET Core Elevation of Privilege Vulnerability (CVE-2026-70179)\n\n* dotnet9.0: dotnet8.0: dotnet10.0: ASP.NET Core Denial of Service Vulnerability (CVE-2026-70181)\n\n* dotnet: dotnet10.0: dotnet9.0: dotnet8.0: ASP.NET Core Elevation of Privilege Vulnerability (CVE-2026-70183)\n\n* dotnet10.0: dotnet9.0: dotnet8.0: ASP.NET Core Denial of Service Vulnerability (CVE-2026-70186)\n\n* dotnet: ASP.NET Core Security Feature Bypass Vulnerability (CVE-2026-70188)\n\n* dotnet9.0: dotnet8.0: dotnet10.0: ASP.NET Core Denial of Service Vulnerability (CVE-2026-70196)\n\n* dotnet: ASP.NET Core Tampering Vulnerability (CVE-2026-88092)\n\n* dotnet10.0: dotnet8.0: dotnet9.0: dotnet: MessagePack: Nested arrays can blow past buffer length limits (CVE-2026-92707)\n\n* dotnet8.0: Active Directory Federation Services (AD FS) Spoofing Vulnerability (CVE-2026-96222)\n\n* dotnet: dotnet8.0: dotnet9.0: dotnet10.0: .NET Elevation of Privilege Vulnerability (CVE-2026-96225)\n\n* dotnet9.0: dotnet10.0: dotnet8.0: dotnet: ASP.NET Core Remote Code Execution Vulnerability (CVE-2026-96230)\n\n* dotnet: dotnet9.0: dotnet10.0: dotnet8.0: .NET Elevation of Privilege Vulnerability (CVE-2026-96231)\n\n* dotnet10.0: dotnet: dotnet8.0: dotnet9.0: ASP.NET Core Denial of Service Vulnerability (CVE-2026-96233)\n\n* dotnet: dotnet10.0: dotnet9.0: dotnet8.0: ASP.NET Core Denial of Service Vulnerability (CVE-2026-96236)\n\n* dotnet8.0: dotnet10.0: dotnet9.0: .NET Remote Code Execution Vulnerability (CVE-2026-96237)\n\n* dotnet8.0: dotnet10.0: dotnet9.0: dotnet: .NET Security Feature Bypass Vulnerability (CVE-2026-96238)\n\nBug Fix(es) and Enhancement(s):\n\n* Update .NET 8.0 to SDK 8.0.132 and Runtime 8.0.32 (JIRA:Rocky Linux-277790)\n\nFor 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.","modified":"2026-10-22T00:30:02.621885212Z","published":"2026-10-22T00:01:17.335044Z","upstream":["CVE-2026-58280","CVE-2026-66822","CVE-2026-69651","CVE-2026-70159","CVE-2026-70175","CVE-2026-70179","CVE-2026-70181","CVE-2026-70183","CVE-2026-70186","CVE-2026-70188","CVE-2026-70196","CVE-2026-88092","CVE-2026-92707","CVE-2026-96222","CVE-2026-96225","CVE-2026-96230","CVE-2026-96231","CVE-2026-96233","CVE-2026-96236","CVE-2026-96237","CVE-2026-96238"],"database_specific":{"license":"CC-BY-4.0","license_url":"https://creativecommons.org/licenses/by/4.0/","source_advisory":"RHSA-2026:86594"},"references":[{"type":"ADVISORY","url":"https://errata.rockylinux.org/RLSA-2026:86594"},{"type":"REPORT","url":"https://bugzilla.redhat.com/show_bug.cgi?id=2548778"},{"type":"REPORT","url":"https://bugzilla.redhat.com/show_bug.cgi?id=2548781"},{"type":"REPORT","url":"https://bugzilla.redhat.com/show_bug.cgi?id=2548784"},{"type":"REPORT","url":"https://bugzilla.redhat.com/show_bug.cgi?id=2548786"},{"type":"REPORT","url":"https://bugzilla.redhat.com/show_bug.cgi?id=2548787"},{"type":"REPORT","url":"https://bugzilla.redhat.com/show_bug.cgi?id=2548790"},{"type":"REPORT","url":"https://bugzilla.redhat.com/show_bug.cgi?id=2548791"},{"type":"REPORT","url":"https://bugzilla.redhat.com/show_bug.cgi?id=2548792"},{"type":"REPORT","url":"https://bugzilla.redhat.com/show_bug.cgi?id=2548793"},{"type":"REPORT","url":"https://bugzilla.redhat.com/show_bug.cgi?id=2548796"},{"type":"REPORT","url":"https://bugzilla.redhat.com/show_bug.cgi?id=2548798"},{"type":"REPORT","url":"https://bugzilla.redhat.com/show_bug.cgi?id=2548799"},{"type":"REPORT","url":"https://bugzilla.redhat.com/show_bug.cgi?id=2548800"},{"type":"REPORT","url":"https://bugzilla.redhat.com/show_bug.cgi?id=2548802"},{"type":"REPORT","url":"https://bugzilla.redhat.com/show_bug.cgi?id=2548803"},{"type":"REPORT","url":"https://bugzilla.redhat.com/show_bug.cgi?id=2548804"},{"type":"REPORT","url":"https://bugzilla.redhat.com/show_bug.cgi?id=2548805"},{"type":"REPORT","url":"https://bugzilla.redhat.com/show_bug.cgi?id=2548806"},{"type":"REPORT","url":"https://bugzilla.redhat.com/show_bug.cgi?id=2548807"},{"type":"REPORT","url":"https://bugzilla.redhat.com/show_bug.cgi?id=2548808"},{"type":"REPORT","url":"https://bugzilla.redhat.com/show_bug.cgi?id=2548809"},{"type":"ADVISORY","url":"https://access.redhat.com/errata/RHSA-2026:86594"}],"affected":[{"package":{"name":"dotnet8.0","ecosystem":"Rocky Linux:8","purl":"pkg:rpm/rocky-linux/dotnet8.0?distro=rocky-linux-8&epoch=0"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0:8.0.132-2.el8_10"}],"database_specific":{"yum_repository":"AppStream"}}],"database_specific":{"source":"https://storage.googleapis.com/resf-osv-data/RLSA-2026:86594.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:L"}],"credits":[{"name":"Rocky Enterprise Software Foundation"},{"name":"Red Hat"}]}