AlmaLinux alert ALSA-2026:25220 (.NET 8.0)

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[Announce]  [Security Advisory] ALSA-2026:25220: .NET 8.0 security update (Important)
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Fri, 12 Jun 2026 13:05:44 +0000
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<0100019ebbf03d0e-98418ec8-098b-4001-8b88-bcf909247f0f-000000@email.amazonses.com>
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Article
Hi,

You are receiving an AlmaLinux Security update email because you subscribed to receive errata
notifications from AlmaLinux.

AlmaLinux: 9
Type: Security
Severity: Important
Release date: 2026-06-12

Summary:

.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.  

New versions of .NET that address a security vulnerability are now available. The updated versions
are .NET SDK 8.0.128 and .NET Runtime 8.0.28.Security Fix(es):  

  * dotnet: .NET: Local file tampering via link following vulnerability (CVE-2026-45491)
  * dotnet: ASP.NET Core: Denial of Service via uncontrolled resource consumption
(CVE-2026-45591)


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.


Full details, updated packages, references, and other related information:
https://errata.almalinux.org/9/ALSA-2026-25220.html

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