Bug 2568445 (CVE-2026-109481) - CVE-2026-109481 dotnet11.0: ASP.NET Core Elevation of Privilege Vulnerability
Summary: CVE-2026-109481 dotnet11.0: ASP.NET Core Elevation of Privilege Vulnerability
Keywords:
Status: NEW
Alias: CVE-2026-109481
Deadline: 2026-11-10
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
high
high
Target Milestone: ---
Assignee: Product Security
QA Contact:
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2026-11-06 19:00 UTC by OSIDB Bzimport
Modified: 2026-11-10 19:11 UTC (History)
3 users (show)

Fixed In Version:
Clone Of:
Environment:
Last Closed:
Embargoed:

Attachments (Terms of Use)

Description OSIDB Bzimport 2026-11-06 19:00:04 UTC 
The Blazor/SignalR /_blazor/refresh path can accept a cross-site request that binds a victim's authenticated principal to an attacker-owned circuit.

CNA: microsoft
CNA impact: Elevation of Privilege
CWE: CWE-352
Platforms: windows, linux, macos
Architectures: all
CVSS 3.1: 7.5 (CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C)

Affected products:
- ASP.NET Core Runtime (release 11.0): 11.0.0-preview.6.26359.118 - 11.0.0-rc.3.26522.148; fixed 11.0.0
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