Description
Inconsistent interpretation of http requests ('http request/response smuggling') in ASP.NET Core allows an unauthorized attacker to bypass a security feature over a network.
Published: 2026-10-13
Score: 9.1 Critical
EPSS: n/a
KEV: No
Impact: n/a
Action: n/a
AI Analysis

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Remediation

No vendor fix or workaround currently provided.

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Tracking

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Advisories
Source ID Title
Github GHSA Github GHSA GHSA-fpq8-4vhr-rcxx Microsoft Security Advisory CVE-2026-70188 - ASP.NET Core Security Feature Bypass Vulnerability
History

Tue, 13 Oct 2026 19:15:00 +0000

Type Values Removed Values Added
Description Inconsistent interpretation of http requests ('http request/response smuggling') in ASP.NET Core allows an unauthorized attacker to bypass a security feature over a network.
Title ASP.NET Core Security Feature Bypass Vulnerability
First Time appeared Microsoft
Microsoft asp.net Core
Microsoft microsoft Visual Studio 2026 Version 18.10
Microsoft visual Studio 2022
Weaknesses CWE-444
CPEs cpe:2.3:a:microsoft:asp.net_core:*:*:*:*:*:*:*:*
cpe:2.3:a:microsoft:microsoft_visual_studio_2026_version_18.10:*:*:*:*:*:*:*:*
cpe:2.3:a:microsoft:visual_studio_2022:*:*:*:*:*:*:*:*
Vendors & Products Microsoft
Microsoft asp.net Core
Microsoft microsoft Visual Studio 2026 Version 18.10
Microsoft visual Studio 2022
References
Metrics cvssV3_1

{'score': 9.1, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N/E:U/RL:O/RC:C'}


Subscriptions

Microsoft Asp.net Core Microsoft Visual Studio 2026 Version 18.10 Visual Studio 2022
cve-icon MITRE

Status: PUBLISHED

Assigner: microsoft

Published:

Updated: 2026-10-13T20:54:48.891Z

Reserved: 2026-08-03T23:48:30.860Z

Link: CVE-2026-70188

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Awaiting Analysis

Published: 2026-10-13T19:19:33.130

Modified: 2026-10-13T19:29:52.750

Link: CVE-2026-70188

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

No data.

Weaknesses