From 088dee382e1dd95cf57d99baf6a4ccdd1d2c2638 Mon Sep 17 00:00:00 2001 From: Tanya Jha <282742281+TanyaJha31@users.noreply.github.com> Date: Fri, 23 Oct 2026 09:03:57 -0700 Subject: [PATCH] Update ADFS documentation for OAuth redirect_uri changes Added a note about the October 2026 update regarding exact matching for the OAuth redirect_uri parameter and the handling of wildcard characters. --- .../ADFS/Add-AdfsNativeClientApplication.md | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/docset/winserver2025-ps/ADFS/Add-AdfsNativeClientApplication.md b/docset/winserver2025-ps/ADFS/Add-AdfsNativeClientApplication.md index cc5423cb18..ac7d081eab 100644 --- a/docset/winserver2025-ps/ADFS/Add-AdfsNativeClientApplication.md +++ b/docset/winserver2025-ps/ADFS/Add-AdfsNativeClientApplication.md @@ -154,6 +154,12 @@ The value of this parameter must match exactly the redirection URI that is speci This includes trailing slashes '/', if they are required. We recommended the use of more secure schemes such as https in a redirection URI. +[!NOTE] +> Starting with the October 2026 update, AD FS requires an exact match for the OAuth `redirect_uri` parameter, in accordance with [RFC 6749, section 3.1.2.3](https://www.rfc-editor.org/rfc/rfc6749#section-3.1.2.3). +> Redirection URIs containing wildcard characters, such as `https://*.hostname/path`, are accepted during registration without an error but will not match OAuth `redirect_uri` validation at runtime. +> Wildcard entries that previously matched through prefix matching will now be silently skipped, resulting in error MSIS9224 (Event ID 364) when no other registered URI exactly matches the requested redirection URI. +> Register a separate redirection URI for each specific hostname instead of using a wildcard. + For Windows Store applications that authenticate by using the Windows Web Authentication Broker, use the `ms-app://` scheme for a redirection URI. If you are developing a Windows Store application, obtain the redirection URI for your application by using the following code fragment: