RHSA-2026:93455HighCVSS 8.1
Red Hat Security Advisory: .NET 8.0 security update
🔗 CVE IDs covered (2)
📋 Description
CVE-2026-111497 — brotli: Out-of-Bounds Write in Google Brotli Decoder CVE-2026-114148 — dotnet8.0: dotnet9.0: dotnet11.0: dotnet10.0: ASP.NET Core Elevation of Privilege Vulnerability
🎯 Affected products91
- Red Hat Enterprise Linux AppStream EUS (v. 10.0)
- Red Hat Enterprise Linux CodeReady Linux Builder EUS (v. 10.0)
- aspnetcore-runtime-8.0-0:8.0.33-1.el10_0.aarch64 as a component of Red Hat Enterprise Linux AppStream EUS (v. 10.0)
- aspnetcore-runtime-8.0-0:8.0.33-1.el10_0.ppc64le as a component of Red Hat Enterprise Linux AppStream EUS (v. 10.0)
- aspnetcore-runtime-8.0-0:8.0.33-1.el10_0.s390x as a component of Red Hat Enterprise Linux AppStream EUS (v. 10.0)
- aspnetcore-runtime-8.0-0:8.0.33-1.el10_0.x86_64 as a component of Red Hat Enterprise Linux AppStream EUS (v. 10.0)
- aspnetcore-runtime-dbg-8.0-0:8.0.33-1.el10_0.aarch64 as a component of Red Hat Enterprise Linux AppStream EUS (v. 10.0)
- aspnetcore-runtime-dbg-8.0-0:8.0.33-1.el10_0.ppc64le as a component of Red Hat Enterprise Linux AppStream EUS (v. 10.0)
- aspnetcore-runtime-dbg-8.0-0:8.0.33-1.el10_0.s390x as a component of Red Hat Enterprise Linux AppStream EUS (v. 10.0)
- aspnetcore-runtime-dbg-8.0-0:8.0.33-1.el10_0.x86_64 as a component of Red Hat Enterprise Linux AppStream EUS (v. 10.0)
- aspnetcore-targeting-pack-8.0-0:8.0.33-1.el10_0.aarch64 as a component of Red Hat Enterprise Linux AppStream EUS (v. 10.0)
- aspnetcore-targeting-pack-8.0-0:8.0.33-1.el10_0.ppc64le as a component of Red Hat Enterprise Linux AppStream EUS (v. 10.0)
- aspnetcore-targeting-pack-8.0-0:8.0.33-1.el10_0.s390x as a component of Red Hat Enterprise Linux AppStream EUS (v. 10.0)
- aspnetcore-targeting-pack-8.0-0:8.0.33-1.el10_0.x86_64 as a component of Red Hat Enterprise Linux AppStream EUS (v. 10.0)
- dotnet-apphost-pack-8.0-0:8.0.33-1.el10_0.aarch64 as a component of Red Hat Enterprise Linux AppStream EUS (v. 10.0)
- dotnet-apphost-pack-8.0-0:8.0.33-1.el10_0.ppc64le as a component of Red Hat Enterprise Linux AppStream EUS (v. 10.0)
- dotnet-apphost-pack-8.0-0:8.0.33-1.el10_0.s390x as a component of Red Hat Enterprise Linux AppStream EUS (v. 10.0)
- dotnet-apphost-pack-8.0-0:8.0.33-1.el10_0.x86_64 as a component of Red Hat Enterprise Linux AppStream EUS (v. 10.0)
- dotnet-apphost-pack-8.0-debuginfo-0:8.0.33-1.el10_0.aarch64 as a component of Red Hat Enterprise Linux AppStream EUS (v. 10.0)
- dotnet-apphost-pack-8.0-debuginfo-0:8.0.33-1.el10_0.aarch64 as a component of Red Hat Enterprise Linux CodeReady Linux Builder EUS (v. 10.0)
- dotnet-apphost-pack-8.0-debuginfo-0:8.0.33-1.el10_0.ppc64le as a component of Red Hat Enterprise Linux AppStream EUS (v. 10.0)
- dotnet-apphost-pack-8.0-debuginfo-0:8.0.33-1.el10_0.ppc64le as a component of Red Hat Enterprise Linux CodeReady Linux Builder EUS (v. 10.0)
- dotnet-apphost-pack-8.0-debuginfo-0:8.0.33-1.el10_0.s390x as a component of Red Hat Enterprise Linux AppStream EUS (v. 10.0)
- dotnet-apphost-pack-8.0-debuginfo-0:8.0.33-1.el10_0.s390x as a component of Red Hat Enterprise Linux CodeReady Linux Builder EUS (v. 10.0)
- dotnet-apphost-pack-8.0-debuginfo-0:8.0.33-1.el10_0.x86_64 as a component of Red Hat Enterprise Linux AppStream EUS (v. 10.0)
- dotnet-apphost-pack-8.0-debuginfo-0:8.0.33-1.el10_0.x86_64 as a component of Red Hat Enterprise Linux CodeReady Linux Builder EUS (v. 10.0)
- dotnet-hostfxr-8.0-0:8.0.33-1.el10_0.aarch64 as a component of Red Hat Enterprise Linux AppStream EUS (v. 10.0)
- dotnet-hostfxr-8.0-0:8.0.33-1.el10_0.ppc64le as a component of Red Hat Enterprise Linux AppStream EUS (v. 10.0)
- dotnet-hostfxr-8.0-0:8.0.33-1.el10_0.s390x as a component of Red Hat Enterprise Linux AppStream EUS (v. 10.0)
- dotnet-hostfxr-8.0-0:8.0.33-1.el10_0.x86_64 as a component of Red Hat Enterprise Linux AppStream EUS (v. 10.0)
- +61 more not shown
✅ Remediation
For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258 Workaround: See the security bulletin for a detailed mitigation procedure.
🔗 References (5)
- selfhttps://access.redhat.com/errata/RHSA-2026:93455
- externalhttps://access.redhat.com/security/updates/classification/#important
- externalhttps://bugzilla.redhat.com/show_bug.cgi?id=2558973
- externalhttps://bugzilla.redhat.com/show_bug.cgi?id=2562054
- selfhttps://security.access.redhat.com/data/csaf/v2/advisories/2026/rhsa-2026_93455.json