Live › vulnerability › CVE-2026-69651
Go to dashboardParsing crafted XML or signed XML in the .NET runtime's System.Security.Cryptography.Xml and System.Private.Xml components consumes excessive CPU and memory, a denial of service (CWE-407, inefficient algorithmic complexity). An unauthenticated remote attacker can make a service that processes such input stop responding.
Summary written from the sources below. Check the originals before acting.
First seen by InfraStack 2026-10-23 19:11 UTC, 5h before NVD. All times on this page are UTC.
| Product | Ecosystem | Affected | Fixed in |
|---|---|---|---|
| Microsoft.NETCore.App.Runtime.linux-arm | nuget | >= 9.0.0, <= 9.0.20 | 9.0.21 |
| Microsoft.NETCore.App.Runtime.linux-arm64 | nuget | >= 9.0.0, <= 9.0.20 | 9.0.21 |
| Microsoft.NETCore.App.Runtime.linux-musl-arm | nuget | >= 9.0.0, <= 9.0.20 | 9.0.21 |
| Microsoft.NETCore.App.Runtime.linux-musl-arm64 | nuget | >= 9.0.0, <= 9.0.20 | 9.0.21 |
| Microsoft.NETCore.App.Runtime.linux-musl-x64 | nuget | >= 9.0.0, <= 9.0.20 | 9.0.21 |
| Microsoft.NETCore.App.Runtime.linux-x64 | nuget | >= 9.0.0, <= 9.0.20 | 9.0.21 |
| Microsoft.NETCore.App.Runtime.osx-arm64 | nuget | >= 9.0.0, <= 9.0.20 | 9.0.21 |
| Microsoft.NETCore.App.Runtime.osx-x64 | nuget | >= 9.0.0, <= 9.0.20 | 9.0.21 |
| Microsoft.NETCore.App.Runtime.win-arm64 |
| nuget |
| >= 9.0.0, <= 9.0.20 |
| 9.0.21 |
| Microsoft.NETCore.App.Runtime.win-x64 | nuget | >= 9.0.0, <= 9.0.20 | 9.0.21 |
| Microsoft.NETCore.App.Runtime.win-x86 | nuget | >= 9.0.0, <= 9.0.20 | 9.0.21 |
| Microsoft.NETCore.App.Runtime.linux-arm | nuget | >= 11.0.0-preview.1, <= 11.0.0-rc.1 | 11.0.0-rc.2 |
| Microsoft.NETCore.App.Runtime.linux-arm64 | nuget | >= 11.0.0-preview.1, <= 11.0.0-rc.1 | 11.0.0-rc.2 |
| Microsoft.NETCore.App.Runtime.linux-musl-arm | nuget | >= 11.0.0-preview.1, <= 11.0.0-rc.1 | 11.0.0-rc.2 |
| Microsoft.NETCore.App.Runtime.linux-musl-arm64 | nuget | >= 11.0.0-preview.1, <= 11.0.0-rc.1 | 11.0.0-rc.2 |
| Microsoft.NETCore.App.Runtime.linux-musl-x64 | nuget | >= 11.0.0-preview.1, <= 11.0.0-rc.1 | 11.0.0-rc.2 |
| Microsoft.NETCore.App.Runtime.linux-x64 | nuget | >= 11.0.0-preview.1, <= 11.0.0-rc.1 | 11.0.0-rc.2 |
| Microsoft.NETCore.App.Runtime.osx-arm64 | nuget | >= 11.0.0-preview.1, <= 11.0.0-rc.1 | 11.0.0-rc.2 |
| Microsoft.NETCore.App.Runtime.osx-x64 | nuget | >= 11.0.0-preview.1, <= 11.0.0-rc.1 | 11.0.0-rc.2 |
| Microsoft.NETCore.App.Runtime.win-arm64 | nuget | >= 11.0.0-preview.1, <= 11.0.0-rc.1 | 11.0.0-rc.2 |
| Microsoft.NETCore.App.Runtime.win-x64 | nuget | >= 11.0.0-preview.1, <= 11.0.0-rc.1 | 11.0.0-rc.2 |
| Microsoft.NETCore.App.Runtime.win-x86 | nuget | >= 11.0.0-preview.1, <= 11.0.0-rc.1 | 11.0.0-rc.2 |
| Microsoft.NETCore.App.Runtime.linux-arm | nuget | >= 10.0.0, <= 10.0.12 | 10.0.13 |
| Microsoft.NETCore.App.Runtime.linux-arm64 | nuget | >= 10.0.0, <= 10.0.12 | 10.0.13 |
| Microsoft.NETCore.App.Runtime.linux-musl-arm | nuget | >= 10.0.0, <= 10.0.12 | 10.0.13 |
| Microsoft.NETCore.App.Runtime.linux-musl-arm64 | nuget | >= 10.0.0, <= 10.0.12 | 10.0.13 |
| Microsoft.NETCore.App.Runtime.linux-musl-x64 | nuget | >= 10.0.0, <= 10.0.12 | 10.0.13 |
| Microsoft.NETCore.App.Runtime.linux-x64 | nuget | >= 10.0.0, <= 10.0.12 | 10.0.13 |
| Microsoft.NETCore.App.Runtime.osx-arm64 | nuget | >= 10.0.0, <= 10.0.12 | 10.0.13 |
| Microsoft.NETCore.App.Runtime.osx-x64 | nuget | >= 10.0.0, <= 10.0.12 | 10.0.13 |
| Microsoft.NETCore.App.Runtime.win-arm64 | nuget | >= 10.0.0, <= 10.0.12 | 10.0.13 |
| Microsoft.NETCore.App.Runtime.win-x64 | nuget | >= 10.0.0, <= 10.0.12 | 10.0.13 |
| Microsoft.NETCore.App.Runtime.win-x86 | nuget | >= 10.0.0, <= 10.0.12 | 10.0.13 |
| Microsoft.NETCore.App.Runtime.linux-arm | nuget | >= 8.0.0, <= 8.0.31 | 8.0.32 |
| Microsoft.NETCore.App.Runtime.linux-arm64 | nuget | >= 8.0.0, <= 8.0.31 | 8.0.32 |
| Microsoft.NETCore.App.Runtime.linux-musl-arm | nuget | >= 8.0.0, <= 8.0.31 | 8.0.32 |
| Microsoft.NETCore.App.Runtime.linux-musl-arm64 | nuget | >= 8.0.0, <= 8.0.31 | 8.0.32 |
| Microsoft.NETCore.App.Runtime.linux-musl-x64 | nuget | >= 8.0.0, <= 8.0.31 | 8.0.32 |
| Microsoft.NETCore.App.Runtime.linux-x64 | nuget | >= 8.0.0, <= 8.0.31 | 8.0.32 |
| Microsoft.NETCore.App.Runtime.osx-arm64 | nuget | >= 8.0.0, <= 8.0.31 | 8.0.32 |
| Microsoft.NETCore.App.Runtime.osx-x64 | nuget | >= 8.0.0, <= 8.0.31 | 8.0.32 |
| Microsoft.NETCore.App.Runtime.win-arm64 | nuget | >= 8.0.0, <= 8.0.31 | 8.0.32 |
| Microsoft.NETCore.App.Runtime.win-x64 | nuget | >= 8.0.0, <= 8.0.31 | 8.0.32 |
| Microsoft.NETCore.App.Runtime.win-x86 | nuget | >= 8.0.0, <= 8.0.31 | 8.0.32 |
dotnet --list-runtimes and dotnet --info to see installed .NET versions; check that Microsoft.NETCore.App.Runtime.* package references in your project files and lock files are not in the affected ranges (9.0.0 to 9.0.20, 10.0.0 to 10.0.12, 8.0.0 to 8.0.31, or 11.0.0-preview.1 to 11.0.0-rc.1)9.0.21, 10.0.13, 8.0.32, or 11.0.0-rc.2 (per the advisory's patched versions), then recompile and redeploy self-contained applicationsEach row is the first time that source carried this signal. The analyst’s rows are its own findings.
Microsoft is releasing this security advisory to provide information about a vulnerability in System.Security.Cryptography.Xml; System.Private.Xml. This advisory also provides guidance on what developers can do to update their applications to remove this vulnerability.
Signed XML fixes add input-depth and operation-count limits, prohibit DTD processing by default, validate entity references, bound encrypted-data candidate processing, and cap attributes and namespaces used by C14N transforms.
Announcement for this issue can be found at https://github.com/dotnet/announcements/issues/449
Version: 3.1
Severity: High
Score: 7.5
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Weakness: CWE-407 (Inefficient Algorithmic Complexity)
The vulnerability affects Microsoft .NET projects that use an affected package version listed below.
| Package name | Affected version | Patched version |
|---|---|---|
| Microsoft.NETCore.App.Runtime.linux-arm | >= 9.0.0, <= 9.0.20 | 9.0.21 |
| Microsoft.NETCore.App.Runtime.linux-arm64 | >= 9.0.0, <= 9.0.20 | 9.0.21 |
| Microsoft.NETCore.App.Runtime.linux-musl-arm | >= 9.0.0, <= 9.0.20 | 9.0.21 |
| Microsoft.NETCore.App.Runtime.linux-musl-arm64 | >= 9.0.0, <= 9.0.20 | 9.0.21 |
| Microsoft.NETCore.App.Runtime.linux-musl-x64 | >= 9.0.0, <= 9.0.20 | 9.0.21 |
| Microsoft.NETCore.App.Runtime.linux-x64 | >= 9.0.0, <= 9.0.20 | 9.0.21 |
This page as .md · .json · in your agent: get_signal("CVE-2026-69651")
GitHub Advisory Database, CC-BY 4.0 · NVD data is provided by NIST and is public domain. Posts quoted belong to their authors.
| >= 9.0.0, <= 9.0.20 |
| 9.0.21 |
| Microsoft.NETCore.App.Runtime.osx-x64 | >= 9.0.0, <= 9.0.20 | 9.0.21 |
| Microsoft.NETCore.App.Runtime.win-arm | >= 9.0.0, <= 9.0.20 | 9.0.21 |
| Microsoft.NETCore.App.Runtime.win-arm64 | >= 9.0.0, <= 9.0.20 | 9.0.21 |
| Microsoft.NETCore.App.Runtime.win-x64 | >= 9.0.0, <= 9.0.20 | 9.0.21 |
| Microsoft.NETCore.App.Runtime.win-x86 | >= 9.0.0, <= 9.0.20 | 9.0.21 |
| Microsoft.NETCore.App.Runtime.linux-arm | >= 11.0.0-preview.1, <= 11.0.0-rc.1 | 11.0.0-rc.2 |
| Microsoft.NETCore.App.Runtime.linux-arm64 | >= 11.0.0-preview.1, <= 11.0.0-rc.1 | 11.0.0-rc.2 |
| Microsoft.NETCore.App.Runtime.linux-musl-arm | >= 11.0.0-preview.1, <= 11.0.0-rc.1 | 11.0.0-rc.2 |
| Microsoft.NETCore.App.Runtime.linux-musl-arm64 | >= 11.0.0-preview.1, <= 11.0.0-rc.1 | 11.0.0-rc.2 |
| Microsoft.NETCore.App.Runtime.linux-musl-x64 | >= 11.0.0-preview.1, <= 11.0.0-rc.1 | 11.0.0-rc.2 |
| Microsoft.NETCore.App.Runtime.linux-x64 | >= 11.0.0-preview.1, <= 11.0.0-rc.1 | 11.0.0-rc.2 |
| Microsoft.NETCore.App.Runtime.osx-arm64 | >= 11.0.0-preview.1, <= 11.0.0-rc.1 | 11.0.0-rc.2 |
| Microsoft.NETCore.App.Runtime.osx-x64 | >= 11.0.0-preview.1, <= 11.0.0-rc.1 | 11.0.0-rc.2 |
| Microsoft.NETCore.App.Runtime.win-arm | >= 11.0.0-preview.1, <= 11.0.0-rc.1 | 11.0.0-rc.2 |
| Microsoft.NETCore.App.Runtime.win-arm64 | >= 11.0.0-preview.1, <= 11.0.0-rc.1 | 11.0.0-rc.2 |
| Microsoft.NETCore.App.Runtime.win-x64 | >= 11.0.0-preview.1, <= 11.0.0-rc.1 | 11.0.0-rc.2 |
| Microsoft.NETCore.App.Runtime.win-x86 | >= 11.0.0-preview.1, <= 11.0.0-rc.1 | 11.0.0-rc.2 |
| Microsoft.NETCore.App.Runtime.linux-arm | >= 10.0.0, <= 10.0.12 | 10.0.13 |
| Microsoft.NETCore.App.Runtime.linux-arm64 | >= 10.0.0, <= 10.0.12 | 10.0.13 |
| Microsoft.NETCore.App.Runtime.linux-musl-arm | >= 10.0.0, <= 10.0.12 | 10.0.13 |
| Microsoft.NETCore.App.Runtime.linux-musl-arm64 | >= 10.0.0, <= 10.0.12 | 10.0.13 |
| Microsoft.NETCore.App.Runtime.linux-musl-x64 | >= 10.0.0, <= 10.0.12 | 10.0.13 |
| Microsoft.NETCore.App.Runtime.linux-x64 | >= 10.0.0, <= 10.0.12 | 10.0.13 |
| Microsoft.NETCore.App.Runtime.osx-arm64 | >= 10.0.0, <= 10.0.12 | 10.0.13 |
| Microsoft.NETCore.App.Runtime.osx-x64 | >= 10.0.0, <= 10.0.12 | 10.0.13 |
| Microsoft.NETCore.App.Runtime.win-arm | >= 10.0.0, <= 10.0.12 | 10.0.13 |
| Microsoft.NETCore.App.Runtime.win-arm64 | >= 10.0.0, <= 10.0.12 | 10.0.13 |
| Microsoft.NETCore.App.Runtime.win-x64 | >= 10.0.0, <= 10.0.12 | 10.0.13 |
| Microsoft.NETCore.App.Runtime.win-x86 | >= 10.0.0, <= 10.0.12 | 10.0.13 |
| Microsoft.NETCore.App.Runtime.linux-arm | >= 8.0.0, <= 8.0.31 | 8.0.32 |
| Microsoft.NETCore.App.Runtime.linux-arm64 | >= 8.0.0, <= 8.0.31 | 8.0.32 |
| Microsoft.NETCore.App.Runtime.linux-musl-arm | >= 8.0.0, <= 8.0.31 | 8.0.32 |
| Microsoft.NETCore.App.Runtime.linux-musl-arm64 | >= 8.0.0, <= 8.0.31 | 8.0.32 |
| Microsoft.NETCore.App.Runtime.linux-musl-x64 | >= 8.0.0, <= 8.0.31 | 8.0.32 |
| Microsoft.NETCore.App.Runtime.linux-x64 | >= 8.0.0, <= 8.0.31 | 8.0.32 |
| Microsoft.NETCore.App.Runtime.osx-arm64 | >= 8.0.0, <= 8.0.31 | 8.0.32 |
| Microsoft.NETCore.App.Runtime.osx-x64 | >= 8.0.0, <= 8.0.31 | 8.0.32 |
| [Microsoft.NETCore.App.Runtime.win-arm](https://www.nuget |