CVE-2026-47300
ASP.NET Core: ASP.NET Core: Privilege Escalation via Incorrect Authentication Algorithm
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 an incorrect implementation of the authentication algorithm over a network. This vulnerability allows the attacker to elevate their privileges, potentially gaining unauthorized access to sensitive resources or performing actions beyond their intended permissions.
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-303 · Incorrect Implementation of Authentication Algorithm