{"schema_version": "1.7.0", "id": "RLSA-2026:8474", "modified": "2026-04-19T00:10:15.837079Z", "published": "2026-04-19T00:04:03.622890Z", "upstream": ["CVE-2026-26171", "CVE-2026-32178", "CVE-2026-32203", "CVE-2026-33116"], "summary": "Important: .NET 9.0 security update", "details": ".NET is a managed-software framework. It implements a subset of the .NET framework APIs and several new APIs, and it includes a CLR implementation.\n\nNew versions of .NET that address a security vulnerability are now available. The updated versions are .NET SDK 9.0.116 and .NET Runtime 9.0.15.Security Fix(es):\n\n* dotnet: .NET: Security Bypass and Denial of Service Vulnerability (CVE-2026-26171)\n\n* dotnet: .NET: Denial of Service via stack overflow (CVE-2026-32203)\n\n* dotnet: .NET: Denial of Service via Infinite Recursion in XmlDecryptionTransform (CVE-2026-33116)\n\n* dotnet: Dotnet: SMTP Command Injection and Header Injection via MailAddress parsing flaw (CVE-2026-32178)\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.", "severity": [{"type": "CVSS_V3", "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"}], "affected": [{"package": {"ecosystem": "Rocky Linux:9", "name": "dotnet9.0", "purl": "pkg:rpm/rocky-linux/dotnet9.0?distro=rocky-linux-9&epoch=0"}, "ranges": [{"type": "ECOSYSTEM", "events": [{"introduced": "0"}, {"fixed": "0:9.0.116-1.el9_7"}], "database_specific": {"yum_repository": "AppStream"}}]}], "references": [{"type": "ADVISORY", "url": "https://errata.rockylinux.org/RLSA-2026:8474"}, {"type": "REPORT", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2457739"}, {"type": "REPORT", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2457740"}, {"type": "REPORT", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2457741"}, {"type": "REPORT", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2457781"}], "credits": [{"name": "Rocky Enterprise Software Foundation"}, {"name": "Red Hat"}]}