Description
Improper encoding or escaping of output in ASP.NET Core allows an unauthorized attacker to disclose information over a network.
Published: 2026-11-10
Score: 6.1 Medium
EPSS: n/a
KEV: No
AI Analysis

Analysis and contextual insights are available on OpenCVE Cloud.

Remediation

No vendor fix or workaround currently provided.

Additional remediation guidance may be available on OpenCVE Cloud.

Tracking

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Advisories
Source ID Title
Github GHSA Github GHSA GHSA-xhj5-c3g8-pfj8 Microsoft Security Advisory CVE-2026-109476 - ASP.NET Core Information Disclosure Vulnerability
History

Wed, 11 Nov 2026 00:15:00 +0000

Type Values Removed Values Added
References
Metrics threat_severity

None

threat_severity

Important


Tue, 10 Nov 2026 18:30:00 +0000

Type Values Removed Values Added
Description Improper encoding or escaping of output in ASP.NET Core allows an unauthorized attacker to disclose information over a network.
Title ASP.NET Core Information Disclosure Vulnerability
First Time appeared Microsoft
Microsoft .net 10.0 Installed On Linux
Microsoft .net 10.0 Installed On Mac Os
Microsoft .net 10.0 Installed On Windows
Microsoft .net 11.0 Installed On Linux
Microsoft .net 11.0 Installed On Mac Os
Microsoft .net 11.0 Installed On Windows
Microsoft .net 8.0 Installed On Linux
Microsoft .net 8.0 Installed On Mac Os
Microsoft .net 8.0 Installed On Windows
Microsoft .net 9.0 Installed On Linux
Microsoft .net 9.0 Installed On Mac Os
Microsoft .net 9.0 Installed On Windows
Microsoft microsoft Visual Studio 2026 Version 18.11
Microsoft microsoft Visual Studio 2026 Version 18.12
Microsoft visual Studio 2022
Weaknesses CWE-116
CPEs cpe:2.3:a:microsoft:.net_10.0_installed_on_linux:*:*:*:*:*:*:*:*
cpe:2.3:a:microsoft:.net_10.0_installed_on_mac_os:*:*:*:*:*:*:*:*
cpe:2.3:a:microsoft:.net_10.0_installed_on_windows:*:*:*:*:*:*:*:*
cpe:2.3:a:microsoft:.net_11.0_installed_on_linux:*:*:*:*:*:*:*:*
cpe:2.3:a:microsoft:.net_11.0_installed_on_mac_os:*:*:*:*:*:*:*:*
cpe:2.3:a:microsoft:.net_11.0_installed_on_windows:*:*:*:*:*:*:*:*
cpe:2.3:a:microsoft:.net_8.0_installed_on_linux:*:*:*:*:*:*:*:*
cpe:2.3:a:microsoft:.net_8.0_installed_on_mac_os:*:*:*:*:*:*:*:*
cpe:2.3:a:microsoft:.net_8.0_installed_on_windows:*:*:*:*:*:*:*:*
cpe:2.3:a:microsoft:.net_9.0_installed_on_linux:*:*:*:*:*:*:*:*
cpe:2.3:a:microsoft:.net_9.0_installed_on_mac_os:*:*:*:*:*:*:*:*
cpe:2.3:a:microsoft:.net_9.0_installed_on_windows:*:*:*:*:*:*:*:*
cpe:2.3:a:microsoft:microsoft_visual_studio_2026_version_18.11:*:*:*:*:*:*:*:*
cpe:2.3:a:microsoft:microsoft_visual_studio_2026_version_18.12:*:*:*:*:*:*:*:*
cpe:2.3:a:microsoft:visual_studio_2022:*:*:*:*:*:*:*:*
Vendors & Products Microsoft
Microsoft .net 10.0 Installed On Linux
Microsoft .net 10.0 Installed On Mac Os
Microsoft .net 10.0 Installed On Windows
Microsoft .net 11.0 Installed On Linux
Microsoft .net 11.0 Installed On Mac Os
Microsoft .net 11.0 Installed On Windows
Microsoft .net 8.0 Installed On Linux
Microsoft .net 8.0 Installed On Mac Os
Microsoft .net 8.0 Installed On Windows
Microsoft .net 9.0 Installed On Linux
Microsoft .net 9.0 Installed On Mac Os
Microsoft .net 9.0 Installed On Windows
Microsoft microsoft Visual Studio 2026 Version 18.11
Microsoft microsoft Visual Studio 2026 Version 18.12
Microsoft visual Studio 2022
References
Metrics cvssV3_1

{'score': 6.1, 'vector': 'CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:N/A:N/E:U/RL:O/RC:C'}


Subscriptions

Microsoft .net 10.0 Installed On Linux .net 10.0 Installed On Mac Os .net 10.0 Installed On Windows .net 11.0 Installed On Linux .net 11.0 Installed On Mac Os .net 11.0 Installed On Windows .net 8.0 Installed On Linux .net 8.0 Installed On Mac Os .net 8.0 Installed On Windows .net 9.0 Installed On Linux .net 9.0 Installed On Mac Os .net 9.0 Installed On Windows Microsoft Visual Studio 2026 Version 18.11 Microsoft Visual Studio 2026 Version 18.12 Visual Studio 2022
cve-icon MITRE

Status: PUBLISHED

Assigner: microsoft

Published:

Updated: 2026-11-10T23:46:49.341Z

Reserved: 2026-10-12T17:01:11.371Z

Link: CVE-2026-109476

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Awaiting Analysis

Published: 2026-11-10T19:18:16.940

Modified: 2026-11-10T22:18:18.570

Link: CVE-2026-109476

cve-icon Redhat

Severity : Important

Publid Date: 2026-11-10T17:00:00Z

Links: CVE-2026-109476 - Bugzilla

cve-icon OpenCVE Enrichment

No data.

Weaknesses
  • CWE-116

    Improper Encoding or Escaping of Output