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TI-2026-44958 Aliases CVE-2026-62899GHSA-r6mh-95jw-g7qg

.NET Security Feature Bypass Vulnerability

Priority LOW 28CWE-444Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
High
Impact type
Security bypass
Confidentiality · integrity · availability
High · None · None
Fix status
Partial Red Hat: 12 fixed, 4 without a fix

Attack profile from CVSS 3.1 · CNA. Fix status from CNA, GitHub, Red Hat and Microsoft. Impact type from Microsoft.

Summary

Inconsistent interpretation of http requests ('http request/response smuggling') in .NET allows an unauthorized attacker to bypass a security feature over a network.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00749 55th percentileScored 2026-11-07
Fix Partial Microsoft.NETCore.App.Runtime.linux-arm (NuGet): 10.0.11, 9.0.19, 8.0.30Microsoft.NETCore.App.Runtime.linux-arm64 (NuGet): 10.0.11, 9.0.19, 8.0.30+6 more productsRed Hat: 17 advisoriesMicrosoft: 3 updatesRed Hat: 12 fixed, 4 without a fix

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
Microsoft.NET 10.0 runtime10.0.0 to before 10.0.1110.0.11Patch availableCNA
Microsoft.NET 8.0 runtime8.0.0 to before 8.0.308.0.30Patch availableCNA
Microsoft.NET 9.0 runtime9.0.0 to before 9.0.199.0.19Patch availableCNA
MicrosoftMicrosoft Visual Studio 2022 version 17.1417.14.0 to before 17.14.3817.14.38Patch availableCNA
MicrosoftMicrosoft Visual Studio 2026 version 18.818.0 to before 18.8.318.8.3Patch availableCNA
—Microsoft.NETCore.App.Runtime.linux-arm (NuGet)10.0.0 to before 10.0.1110.0.11Patch availableGHSA-r6mh-95jw-g7qg
—Microsoft.NETCore.App.Runtime.linux-arm64 (NuGet)10.0.0 to before 10.0.1110.0.11Patch availableGHSA-r6mh-95jw-g7qg
—Microsoft.NETCore.App.Runtime.linux-musl-arm (NuGet)10.0.0 to before 10.0.1110.0.11Patch availableGHSA-r6mh-95jw-g7qg
—Microsoft.NETCore.App.Runtime.linux-musl-arm64 (NuGet)10.0.0 to before 10.0.1110.0.11Patch availableGHSA-r6mh-95jw-g7qg
—Microsoft.NETCore.App.Runtime.linux-musl-x64 (NuGet)10.0.0 to before 10.0.1110.0.11Patch availableGHSA-r6mh-95jw-g7qg
—Microsoft.NETCore.App.Runtime.linux-x64 (NuGet)10.0.0 to before 10.0.1110.0.11Patch availableGHSA-r6mh-95jw-g7qg
—Microsoft.NETCore.App.Runtime.osx-arm64 (NuGet)10.0.0 to before 10.0.1110.0.11Patch availableGHSA-r6mh-95jw-g7qg
—Microsoft.NETCore.App.Runtime.osx-x64 (NuGet)10.0.0 to before 10.0.1110.0.11Patch availableGHSA-r6mh-95jw-g7qg
—Microsoft.NETCore.App.Runtime.linux-arm (NuGet)9.0.0 to before 9.0.199.0.19Patch availableGHSA-r6mh-95jw-g7qg
—Microsoft.NETCore.App.Runtime.linux-arm64 (NuGet)9.0.0 to before 9.0.199.0.19Patch availableGHSA-r6mh-95jw-g7qg
—Microsoft.NETCore.App.Runtime.linux-musl-arm (NuGet)9.0.0 to before 9.0.199.0.19Patch availableGHSA-r6mh-95jw-g7qg
—Microsoft.NETCore.App.Runtime.linux-musl-arm64 (NuGet)9.0.0 to before 9.0.199.0.19Patch availableGHSA-r6mh-95jw-g7qg
—Microsoft.NETCore.App.Runtime.linux-musl-x64 (NuGet)9.0.0 to before 9.0.199.0.19Patch availableGHSA-r6mh-95jw-g7qg
—Microsoft.NETCore.App.Runtime.linux-x64 (NuGet)9.0.0 to before 9.0.199.0.19Patch availableGHSA-r6mh-95jw-g7qg
—Microsoft.NETCore.App.Runtime.osx-arm64 (NuGet)9.0.0 to before 9.0.199.0.19Patch availableGHSA-r6mh-95jw-g7qg
—Microsoft.NETCore.App.Runtime.osx-x64 (NuGet)9.0.0 to before 9.0.199.0.19Patch availableGHSA-r6mh-95jw-g7qg
—Microsoft.NETCore.App.Runtime.linux-arm (NuGet)8.0.0 to before 8.0.308.0.30Patch availableGHSA-r6mh-95jw-g7qg
—Microsoft.NETCore.App.Runtime.linux-arm64 (NuGet)8.0.0 to before 8.0.308.0.30Patch availableGHSA-r6mh-95jw-g7qg
—Microsoft.NETCore.App.Runtime.linux-musl-arm (NuGet)8.0.0 to before 8.0.308.0.30Patch availableGHSA-r6mh-95jw-g7qg
—Microsoft.NETCore.App.Runtime.linux-musl-arm64 (NuGet)8.0.0 to before 8.0.308.0.30Patch availableGHSA-r6mh-95jw-g7qg
—Microsoft.NETCore.App.Runtime.linux-musl-x64 (NuGet)8.0.0 to before 8.0.308.0.30Patch availableGHSA-r6mh-95jw-g7qg
—Microsoft.NETCore.App.Runtime.linux-x64 (NuGet)8.0.0 to before 8.0.308.0.30Patch availableGHSA-r6mh-95jw-g7qg
—Microsoft.NETCore.App.Runtime.osx-arm64 (NuGet)8.0.0 to before 8.0.308.0.30Patch availableGHSA-r6mh-95jw-g7qg
—Microsoft.NETCore.App.Runtime.osx-x64 (NuGet)8.0.0 to before 8.0.308.0.30Patch availableGHSA-r6mh-95jw-g7qg
  • .NET 10.0 runtime VendorMicrosoft Affected 10.0.0 to before 10.0.11 Fixed in 10.0.11 Patch available CNA
  • .NET 8.0 runtime VendorMicrosoft Affected 8.0.0 to before 8.0.30 Fixed in 8.0.30 Patch available CNA
  • .NET 9.0 runtime VendorMicrosoft Affected 9.0.0 to before 9.0.19 Fixed in 9.0.19 Patch available CNA
  • Microsoft Visual Studio 2022 version 17.14 VendorMicrosoft Affected 17.14.0 to before 17.14.38 Fixed in 17.14.38 Patch available CNA
  • Microsoft Visual Studio 2026 version 18.8 VendorMicrosoft Affected 18.0 to before 18.8.3 Fixed in 18.8.3 Patch available CNA
  • Microsoft.NETCore.App.Runtime.linux-arm (NuGet) Vendor— Affected 10.0.0 to before 10.0.11 Fixed in 10.0.11 Patch available GHSA-r6mh-95jw-g7qg
  • Microsoft.NETCore.App.Runtime.linux-arm64 (NuGet) Vendor— Affected 10.0.0 to before 10.0.11 Fixed in 10.0.11 Patch available GHSA-r6mh-95jw-g7qg
  • Microsoft.NETCore.App.Runtime.linux-musl-arm (NuGet) Vendor— Affected 10.0.0 to before 10.0.11 Fixed in 10.0.11 Patch available GHSA-r6mh-95jw-g7qg
  • Microsoft.NETCore.App.Runtime.linux-musl-arm64 (NuGet) Vendor— Affected 10.0.0 to before 10.0.11 Fixed in 10.0.11 Patch available GHSA-r6mh-95jw-g7qg
  • Microsoft.NETCore.App.Runtime.linux-musl-x64 (NuGet) Vendor— Affected 10.0.0 to before 10.0.11 Fixed in 10.0.11 Patch available GHSA-r6mh-95jw-g7qg
  • Microsoft.NETCore.App.Runtime.linux-x64 (NuGet) Vendor— Affected 10.0.0 to before 10.0.11 Fixed in 10.0.11 Patch available GHSA-r6mh-95jw-g7qg
  • Microsoft.NETCore.App.Runtime.osx-arm64 (NuGet) Vendor— Affected 10.0.0 to before 10.0.11 Fixed in 10.0.11 Patch available GHSA-r6mh-95jw-g7qg
  • Microsoft.NETCore.App.Runtime.osx-x64 (NuGet) Vendor— Affected 10.0.0 to before 10.0.11 Fixed in 10.0.11 Patch available GHSA-r6mh-95jw-g7qg
  • Microsoft.NETCore.App.Runtime.linux-arm (NuGet) Vendor— Affected 9.0.0 to before 9.0.19 Fixed in 9.0.19 Patch available GHSA-r6mh-95jw-g7qg
  • Microsoft.NETCore.App.Runtime.linux-arm64 (NuGet) Vendor— Affected 9.0.0 to before 9.0.19 Fixed in 9.0.19 Patch available GHSA-r6mh-95jw-g7qg
  • Microsoft.NETCore.App.Runtime.linux-musl-arm (NuGet) Vendor— Affected 9.0.0 to before 9.0.19 Fixed in 9.0.19 Patch available GHSA-r6mh-95jw-g7qg
  • Microsoft.NETCore.App.Runtime.linux-musl-arm64 (NuGet) Vendor— Affected 9.0.0 to before 9.0.19 Fixed in 9.0.19 Patch available GHSA-r6mh-95jw-g7qg
  • Microsoft.NETCore.App.Runtime.linux-musl-x64 (NuGet) Vendor— Affected 9.0.0 to before 9.0.19 Fixed in 9.0.19 Patch available GHSA-r6mh-95jw-g7qg
  • Microsoft.NETCore.App.Runtime.linux-x64 (NuGet) Vendor— Affected 9.0.0 to before 9.0.19 Fixed in 9.0.19 Patch available GHSA-r6mh-95jw-g7qg
  • Microsoft.NETCore.App.Runtime.osx-arm64 (NuGet) Vendor— Affected 9.0.0 to before 9.0.19 Fixed in 9.0.19 Patch available GHSA-r6mh-95jw-g7qg
  • Microsoft.NETCore.App.Runtime.osx-x64 (NuGet) Vendor— Affected 9.0.0 to before 9.0.19 Fixed in 9.0.19 Patch available GHSA-r6mh-95jw-g7qg
  • Microsoft.NETCore.App.Runtime.linux-arm (NuGet) Vendor— Affected 8.0.0 to before 8.0.30 Fixed in 8.0.30 Patch available GHSA-r6mh-95jw-g7qg
  • Microsoft.NETCore.App.Runtime.linux-arm64 (NuGet) Vendor— Affected 8.0.0 to before 8.0.30 Fixed in 8.0.30 Patch available GHSA-r6mh-95jw-g7qg
  • Microsoft.NETCore.App.Runtime.linux-musl-arm (NuGet) Vendor— Affected 8.0.0 to before 8.0.30 Fixed in 8.0.30 Patch available GHSA-r6mh-95jw-g7qg
  • Microsoft.NETCore.App.Runtime.linux-musl-arm64 (NuGet) Vendor— Affected 8.0.0 to before 8.0.30 Fixed in 8.0.30 Patch available GHSA-r6mh-95jw-g7qg
  • Microsoft.NETCore.App.Runtime.linux-musl-x64 (NuGet) Vendor— Affected 8.0.0 to before 8.0.30 Fixed in 8.0.30 Patch available GHSA-r6mh-95jw-g7qg
  • Microsoft.NETCore.App.Runtime.linux-x64 (NuGet) Vendor— Affected 8.0.0 to before 8.0.30 Fixed in 8.0.30 Patch available GHSA-r6mh-95jw-g7qg
  • Microsoft.NETCore.App.Runtime.osx-arm64 (NuGet) Vendor— Affected 8.0.0 to before 8.0.30 Fixed in 8.0.30 Patch available GHSA-r6mh-95jw-g7qg
  • Microsoft.NETCore.App.Runtime.osx-x64 (NuGet) Vendor— Affected 8.0.0 to before 8.0.30 Fixed in 8.0.30 Patch available GHSA-r6mh-95jw-g7qg

CPE configurations NVD · 7

CPEVersionsRoleVendor
cpe:2.3:a:microsoft:visual_studio_2022:*:*:*:*:*:*:*:*17.14.0 to before 17.14.38VulnerableMicrosoft
cpe:2.3:a:microsoft:visual_studio_2026:*:*:*:*:*:*:*:*18.8.0 to before 18.8.3VulnerableMicrosoft
cpe:2.3:a:microsoft:.net:*:*:*:*:*:*:*:*8.0.0 to before 8.0.30; 9.0.0 to before 9.0.19VulnerableMicrosoft
cpe:2.3:o:apple:macos:-:*:*:*:*:*:*:*not specified by NVDRunning onApple
cpe:2.3:o:linux:linux_kernel:-:*:*:*:*:*:*:*not specified by NVDRunning onLinux
cpe:2.3:o:microsoft:windows:-:*:*:*:*:*:*:*not specified by NVDRunning onMicrosoft
cpe:2.3:a:microsoft:.net:*:*:*:*:*:*:*:*10.0.0 to before 10.0.11VulnerableMicrosoft
  • cpe:2.3:a:microsoft:visual_studio_2022:*:*:*:*:*:*:*:* Versions 17.14.0 to before 17.14.38 Vulnerable ·Microsoft
  • cpe:2.3:a:microsoft:visual_studio_2026:*:*:*:*:*:*:*:* Versions 18.8.0 to before 18.8.3 Vulnerable ·Microsoft
  • cpe:2.3:a:microsoft:.net:*:*:*:*:*:*:*:* Versions 8.0.0 to before 8.0.30; 9.0.0 to before 9.0.19 Vulnerable ·Microsoft
  • cpe:2.3:o:apple:macos:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Apple
  • cpe:2.3:o:linux:linux_kernel:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Linux
  • cpe:2.3:o:microsoft:windows:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Microsoft
  • cpe:2.3:a:microsoft:.net:*:*:*:*:*:*:*:* Versions 10.0.0 to before 10.0.11 Vulnerable ·Microsoft

Remediation

  • Fix · GHSA-r6mh-95jw-g7qg Microsoft.NETCore.App.Runtime.linux-arm (NuGet) Fixed in 10.0.11 Advisory →
  • Fix · GHSA-r6mh-95jw-g7qg Microsoft.NETCore.App.Runtime.linux-arm64 (NuGet) Fixed in 10.0.11 Advisory →
  • Fix · GHSA-r6mh-95jw-g7qg Microsoft.NETCore.App.Runtime.linux-musl-arm (NuGet) Fixed in 10.0.11 Advisory →
  • Fix · GHSA-r6mh-95jw-g7qg Microsoft.NETCore.App.Runtime.linux-musl-arm64 (NuGet) Fixed in 10.0.11 Advisory →
  • Fix · GHSA-r6mh-95jw-g7qg Microsoft.NETCore.App.Runtime.linux-musl-x64 (NuGet) Fixed in 10.0.11 Advisory →
  • Fix · GHSA-r6mh-95jw-g7qg Microsoft.NETCore.App.Runtime.linux-x64 (NuGet) Fixed in 10.0.11 Advisory →
  • Fix · GHSA-r6mh-95jw-g7qg Microsoft.NETCore.App.Runtime.osx-arm64 (NuGet) Fixed in 10.0.11 Advisory →
  • Fix · GHSA-r6mh-95jw-g7qg Microsoft.NETCore.App.Runtime.osx-x64 (NuGet) Fixed in 10.0.11 Advisory →
  • Fix · GHSA-r6mh-95jw-g7qg Microsoft.NETCore.App.Runtime.linux-arm (NuGet) Fixed in 9.0.19 Advisory →
  • Fix · GHSA-r6mh-95jw-g7qg Microsoft.NETCore.App.Runtime.linux-arm64 (NuGet) Fixed in 9.0.19 Advisory →
  • Fix · GHSA-r6mh-95jw-g7qg Microsoft.NETCore.App.Runtime.linux-musl-arm (NuGet) Fixed in 9.0.19 Advisory →
  • Fix · GHSA-r6mh-95jw-g7qg Microsoft.NETCore.App.Runtime.linux-musl-arm64 (NuGet) Fixed in 9.0.19 Advisory →
  • Fix · GHSA-r6mh-95jw-g7qg Microsoft.NETCore.App.Runtime.linux-musl-x64 (NuGet) Fixed in 9.0.19 Advisory →
  • Fix · GHSA-r6mh-95jw-g7qg Microsoft.NETCore.App.Runtime.linux-x64 (NuGet) Fixed in 9.0.19 Advisory →
  • Fix · GHSA-r6mh-95jw-g7qg Microsoft.NETCore.App.Runtime.osx-arm64 (NuGet) Fixed in 9.0.19 Advisory →
  • Fix · GHSA-r6mh-95jw-g7qg Microsoft.NETCore.App.Runtime.osx-x64 (NuGet) Fixed in 9.0.19 Advisory →
  • Fix · GHSA-r6mh-95jw-g7qg Microsoft.NETCore.App.Runtime.linux-arm (NuGet) Fixed in 8.0.30 Advisory →
  • Fix · GHSA-r6mh-95jw-g7qg Microsoft.NETCore.App.Runtime.linux-arm64 (NuGet) Fixed in 8.0.30 Advisory →
  • Fix · GHSA-r6mh-95jw-g7qg Microsoft.NETCore.App.Runtime.linux-musl-arm (NuGet) Fixed in 8.0.30 Advisory →
  • Fix · GHSA-r6mh-95jw-g7qg Microsoft.NETCore.App.Runtime.linux-musl-arm64 (NuGet) Fixed in 8.0.30 Advisory →
  • Fix · GHSA-r6mh-95jw-g7qg Microsoft.NETCore.App.Runtime.linux-musl-x64 (NuGet) Fixed in 8.0.30 Advisory →
  • Fix · GHSA-r6mh-95jw-g7qg Microsoft.NETCore.App.Runtime.linux-x64 (NuGet) Fixed in 8.0.30 Advisory →
  • Fix · GHSA-r6mh-95jw-g7qg Microsoft.NETCore.App.Runtime.osx-arm64 (NuGet) Fixed in 8.0.30 Advisory →
  • Fix · GHSA-r6mh-95jw-g7qg Microsoft.NETCore.App.Runtime.osx-x64 (NuGet) Fixed in 8.0.30 Advisory →

Red Hat 17 advisories

  • RHSA-2026:58570 Released 2026-08-24 · Red Hat rating Important
    .NET 9.0 security, bug fix, and enhancement update
    • Red Hat CodeReady Linux Builder EUS (v.9.6) dotnet-sdk-9.0-source-built-artifacts-9.0.120-1.el9_6
    • Red Hat Enterprise Linux AppStream EUS (v.9.6) aspnetcore-runtime-9.0-9.0.19-1.el9_6, aspnetcore-runtime-dbg-9.0-9.0.19-1.el9_6, aspnetcore-targeting-pack-9.0-9.0.19-1.el9_6 +12
  • RHSA-2026:58569 Released 2026-08-24 · Red Hat rating Important
    .NET 8.0 security, bug fix, and enhancement update
    • Red Hat CodeReady Linux Builder EUS (v.9.6) dotnet-sdk-8.0-source-built-artifacts-8.0.130-1.el9_6
    • Red Hat Enterprise Linux AppStream EUS (v.9.6) aspnetcore-runtime-8.0-8.0.30-1.el9_6, aspnetcore-runtime-dbg-8.0-8.0.30-1.el9_6, aspnetcore-targeting-pack-8.0-8.0.30-1.el9_6 +9
  • RHSA-2026:58568 Released 2026-08-24 · Red Hat rating Important
    .NET 8.0 security, bug fix, and enhancement update
    • Red Hat Enterprise Linux AppStream E4S (v.9.4) aspnetcore-runtime-8.0-8.0.30-1.el9_4, aspnetcore-runtime-dbg-8.0-8.0.30-1.el9_4, aspnetcore-targeting-pack-8.0-8.0.30-1.el9_4 +11
Show 14 more Red Hat advisories
  • RHSA-2026:58567 Released 2026-08-24 · Red Hat rating Important
    .NET 9.0 security, bug fix, and enhancement update
    • Red Hat Enterprise Linux AppStream EUS (v. 10.0) aspnetcore-runtime-9.0-9.0.19-1.el10_0, aspnetcore-runtime-dbg-9.0-9.0.19-1.el10_0, aspnetcore-targeting-pack-9.0-9.0.19-1.el10_0 +12
    • Red Hat Enterprise Linux CodeReady Linux Builder EUS (v. 10.0) dotnet-sdk-9.0-source-built-artifacts-9.0.120-1.el10_0
  • RHSA-2026:58566 Released 2026-08-24 · Red Hat rating Important
    .NET 8.0 security, bug fix, and enhancement update
    • Red Hat Enterprise Linux AppStream EUS (v. 10.0) aspnetcore-runtime-8.0-8.0.30-1.el10_0, aspnetcore-runtime-dbg-8.0-8.0.30-1.el10_0, aspnetcore-targeting-pack-8.0-8.0.30-1.el10_0 +9
    • Red Hat Enterprise Linux CodeReady Linux Builder EUS (v. 10.0) dotnet-sdk-8.0-source-built-artifacts-8.0.130-1.el10_0
  • RHSA-2026:55857 Released 2026-08-17 · Red Hat rating Important
    .NET 10.0 security, bug fix, and enhancement update
    • Red Hat Enterprise Linux AppStream (v. 9) aspnetcore-runtime-10.0-10.0.11-1.el9_8, aspnetcore-runtime-dbg-10.0-10.0.11-1.el9_8, aspnetcore-targeting-pack-10.0-10.0.11-1.el9_8 +11
    • Red Hat Enterprise Linux CodeReady Linux Builder (v. 9) dotnet-sdk-10.0-source-built-artifacts-10.0.111-1.el9_8
  • RHSA-2026:55856 Released 2026-08-17 · Red Hat rating Important
    .NET 9.0 security, bug fix, and enhancement update
    • Red Hat Enterprise Linux AppStream (v. 9) aspnetcore-runtime-9.0-9.0.19-1.el9_8, aspnetcore-runtime-dbg-9.0-9.0.19-1.el9_8, aspnetcore-targeting-pack-9.0-9.0.19-1.el9_8 +11
    • Red Hat Enterprise Linux CodeReady Linux Builder (v. 9) dotnet-sdk-9.0-source-built-artifacts-9.0.120-1.el9_8
  • RHSA-2026:55858 Released 2026-08-17 · Red Hat rating Important
    .NET 10.0 security, bug fix, and enhancement update
    • Red Hat Enterprise Linux AppStream (v. 10) aspnetcore-runtime-10.0-10.0.11-1.el10_2, aspnetcore-runtime-dbg-10.0-10.0.11-1.el10_2, aspnetcore-targeting-pack-10.0-10.0.11-1.el10_2 +11
    • Red Hat Enterprise Linux CodeReady Linux Builder (v. 10) dotnet-sdk-10.0-source-built-artifacts-10.0.111-1.el10_2
  • RHSA-2026:55405 Released 2026-08-16 · Red Hat rating Important
    Red Hat Hardened Images RPMs Security Update
    • Red Hat Hardened Images aspnetcore-runtime-8.0-8.0.30-0.1.hum1@aarch64, aspnetcore-runtime-8.0-8.0.30-0.1.hum1@x86_64, aspnetcore-runtime-dbg-8.0-8.0.30-0.1.hum1@aarch64 +22
  • RHSA-2026:55142 Released 2026-08-15 · Red Hat rating Important
    Red Hat Hardened Images RPMs bug fix and enhancement update
    • Red Hat Hardened Images dotnet-sdk-10.0-10.0.111-1.hum1@aarch64, dotnet-sdk-10.0-10.0.111-1.hum1@x86_64, dotnet-sdk-10.0-source-built-artifacts-10.0.111-1.hum1@aarch64 +8
  • RHSA-2026:54590 Released 2026-08-13 · Red Hat rating Important
    .NET 9.0 security, bug fix, and enhancement update
    • Red Hat Enterprise Linux AppStream (v. 10) aspnetcore-runtime-9.0-9.0.19-1.el10_2, aspnetcore-runtime-dbg-9.0-9.0.19-1.el10_2, aspnetcore-targeting-pack-9.0-9.0.19-1.el10_2 +11
    • Red Hat Enterprise Linux CodeReady Linux Builder (v. 10) dotnet-sdk-9.0-source-built-artifacts-9.0.120-1.el10_2
  • RHSA-2026:54574 Released 2026-08-13 · Red Hat rating Important
    .NET 8.0 security, bug fix, and enhancement update
    • Red Hat Enterprise Linux AppStream (v. 9) aspnetcore-runtime-8.0-8.0.30-1.el9_8, aspnetcore-runtime-dbg-8.0-8.0.30-1.el9_8, aspnetcore-targeting-pack-8.0-8.0.30-1.el9_8 +9
    • Red Hat Enterprise Linux CodeReady Linux Builder (v. 9) dotnet-sdk-8.0-source-built-artifacts-8.0.130-1.el9_8
  • RHSA-2026:54550 Released 2026-08-13 · Red Hat rating Important
    .NET 9.0 security, bug fix, and enhancement update
    • Red Hat Enterprise Linux AppStream (v. 8) aspnetcore-runtime-9.0-9.0.19-1.el8_10, aspnetcore-runtime-dbg-9.0-9.0.19-1.el8_10, aspnetcore-targeting-pack-9.0-9.0.19-1.el8_10 +11
    • Red Hat Enterprise Linux CRB (v. 8) dotnet-sdk-9.0-source-built-artifacts-9.0.120-1.el8_10
  • RHSA-2026:54542 Released 2026-08-13 · Red Hat rating Important
    .NET 10.0 security, bug fix, and enhancement update
    • Red Hat Enterprise Linux AppStream (v. 8) aspnetcore-runtime-10.0-10.0.11-1.el8_10, aspnetcore-runtime-dbg-10.0-10.0.11-1.el8_10, aspnetcore-targeting-pack-10.0-10.0.11-1.el8_10 +12
    • Red Hat Enterprise Linux CRB (v. 8) dotnet-sdk-10.0-source-built-artifacts-10.0.111-1.el8_10
  • RHSA-2026:54541 Released 2026-08-13 · Red Hat rating Important
    .NET 8.0 security, bug fix, and enhancement update
    • Red Hat Enterprise Linux AppStream (v. 10) aspnetcore-runtime-8.0-8.0.30-1.el10_2, aspnetcore-runtime-dbg-8.0-8.0.30-1.el10_2, aspnetcore-targeting-pack-8.0-8.0.30-1.el10_2 +9
    • Red Hat Enterprise Linux CodeReady Linux Builder (v. 10) dotnet-sdk-8.0-source-built-artifacts-8.0.130-1.el10_2
  • RHSA-2026:54538 Released 2026-08-13 · Red Hat rating Important
    .NET 8.0 security, bug fix, and enhancement update
    • Red Hat Enterprise Linux AppStream (v. 8) aspnetcore-runtime-8.0-8.0.30-1.el8_10, aspnetcore-runtime-dbg-8.0-8.0.30-1.el8_10, aspnetcore-targeting-pack-8.0-8.0.30-1.el8_10 +9
    • Red Hat Enterprise Linux CRB (v. 8) dotnet-sdk-8.0-source-built-artifacts-8.0.130-1.el8_10
  • RHSA-2026:44914 Released 2026-07-24 · Red Hat rating Important
    Red Hat Hardened Images RPMs bug fix and enhancement update
    • Red Hat Hardened Images dotnet-sdk-9.0-9.0.119-2.hum1@aarch64, dotnet-sdk-9.0-9.0.119-2.hum1@x86_64, dotnet-sdk-9.0-source-built-artifacts-9.0.119-2.hum1@aarch64 +10

Microsoft 3 updates

  • KB5122106
    Security Update
    • .NET 10.0 installed on Linux 10.0.11
    • .NET 10.0 installed on Mac OS 10.0.11
    • .NET 10.0 installed on Windows 10.0.11
  • KB5122105
    Security Update
    • .NET 9.0 installed on Linux 9.0.19
    • .NET 9.0 installed on Mac OS 9.0.19
    • .NET 9.0 installed on Windows 9.0.19
  • KB5122104
    Security Update
    • .NET 8.0 installed on Linux 8.0.30
    • .NET 8.0 installed on Mac OS 8.0.30
    • .NET 8.0 installed on Windows 8.0.30

Vendor assessments

Red Hat

Red Hat rating: Moderate. Red Hat's page for this CVE →

ProductStatusPlan or fix
Red Hat Enterprise Linux 10AffectedNo fix yet: Fix deferred
Red Hat Enterprise Linux 8AffectedNo fix yet: Fix deferred
Red Hat Enterprise Linux 9AffectedNo fix yet: Fix deferred
Red Hat OpenShift Dev SpacesAffectedNo fix yet: Fix deferred
Red Hat CodeReady Linux Builder EUS (v.9.6)Fixed RHSA-2026:58569, RHSA-2026:58570
Red Hat Enterprise Linux AppStream (v. 10)Fixed RHSA-2026:54541, RHSA-2026:54590, RHSA-2026:55858
Red Hat Enterprise Linux AppStream (v. 8)Fixed RHSA-2026:54538, RHSA-2026:54542, RHSA-2026:54550
Red Hat Enterprise Linux AppStream (v. 9)Fixed RHSA-2026:54574, RHSA-2026:55856, RHSA-2026:55857
Red Hat Enterprise Linux AppStream E4S (v.9.4)Fixed RHSA-2026:58568
Red Hat Enterprise Linux AppStream EUS (v. 10.0)Fixed RHSA-2026:58566, RHSA-2026:58567
Red Hat Enterprise Linux AppStream EUS (v.9.6)Fixed RHSA-2026:58569, RHSA-2026:58570
Red Hat Enterprise Linux CRB (v. 8)Fixed RHSA-2026:54538, RHSA-2026:54542, RHSA-2026:54550
Red Hat Enterprise Linux CodeReady Linux Builder (v. 10)Fixed RHSA-2026:54541, RHSA-2026:54590, RHSA-2026:55858
Red Hat Enterprise Linux CodeReady Linux Builder (v. 9)Fixed RHSA-2026:54574, RHSA-2026:55856, RHSA-2026:55857
Red Hat Enterprise Linux CodeReady Linux Builder EUS (v. 10.0)Fixed RHSA-2026:58566, RHSA-2026:58567
Red Hat Hardened ImagesFixed RHSA-2026:44914, RHSA-2026:55142, RHSA-2026:55405
Not affected: 1 product
  • Red Hat Hardened Images

Microsoft

Microsoft's page for this CVE →

Impact
Security Feature Bypass
Exploited
No
Publicly disclosed
No
Exploitability
Exploitation Less Likely
ProductStatusPlan or fix
Microsoft Visual Studio 2022 version 17.14Fixed17.14.38 Security Update
Microsoft Visual Studio 2026 version 18.8Fixed18.8.3 Security Update

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-62899
  2. 2026-10-03 Alias added: GHSA-r6mh-95jw-g7qg
  3. 2026-10-09 Affected versions changed · Red Hat
  4. 2026-10-22 Affected versions changed · Red Hat
  5. 2026-10-28 Fix available: Microsoft/.NET 10.0 [email protected], Microsoft/.NET 8.0 [email protected], Microsoft/.NET 9.0 [email protected] · CNA

References

Patch 1

Advisory 1

Other 3

  • TI-2026-79288 Out-of-bounds write in Google Brotli decoder KEVCVSS 4.0CRITICAL 9.2
  • TI-2023-23979 The HTTP/2 protocol allows a denial of service (server resource consumption) because… KEVCVSS 3.1HIGH 7.5
  • TI-2023-19596 .NET and Visual Studio Denial of Service Vulnerability KEVCVSS 3.1HIGH 7.5
  • TI-2023-19588 Microsoft QUIC Denial of Service Vulnerability CVSS 3.1HIGH 7.5
  • TI-2024-14152 .NET and Visual Studio Denial of Service Vulnerability CVSS 3.1HIGH 7.5
  • TI-2021-08380 .NET Core Remote Code Execution Vulnerability CVSS 3.1CRITICAL 9.8
See all 129 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences