CVE-2026-47303
ASP.NET Core: ASP.NET Core: Privilege Elevation via Authentication Bypass
Severity
ImportantRed Hat Product Security
CVSS 3.1
Review impact separately from score.
Published · July 15, 2026
Updated · August 24, 2026
Description
A flaw was found in ASP.NET Core. An authorized attacker can exploit this authentication bypass vulnerability over a network by manipulating assumed-immutable data. This can allow the attacker to elevate their privileges within the system.
CVSS score applicability
The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.
Mitigation
No mitigation is specified in collected source.
CVSS / CWE
CVSS 3.1 · 8.8CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CWE-472 · External Control of Assumed-Immutable Web Parameter