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Web App Down or Reporting Errors: Kudu Not Working

Problem description I am experiencing issues with my Web App, specifically that Kudu (SCM) is not responding and authentication Environment `This page isn’t working gr-prod-sn1-afd.sso.azurewebsites.windows.net is currently unable to handle this…

Azure App Service
Azure App Service

Azure App Service is a service used to create and deploy scalable, mission-critical web apps.

10,122 questions
asked 2026-10-28T01:51:01.7333333+00:00
hbpaul 0 Reputation points
commented 2026-10-28T04:36:04.0666667+00:00
Santhi Siruvuri 5 Reputation points Microsoft External Staff Moderator
2 answers

Outbound connectivity issue from my one API to godaddy smtp while other api is able to connect to same perfectly.

Outbound connectivity issue from my one API to godaddy smtp while other api is able to connect to same perfectly. Linux app servce plan B1

Azure App Service
Azure App Service

Azure App Service is a service used to create and deploy scalable, mission-critical web apps.

10,122 questions
asked 2026-10-27T16:31:07.13+00:00
Apaxion Techlonolgies 0 Reputation points
answered 2026-10-27T21:48:22.1733333+00:00
Jose Benjamin Solis Nolasco 12,861 Reputation points Volunteer Moderator
1 answer One of the answers was accepted by the question author.

Linux App Service SSH fails for all applications after platform update

Starting approximately 2026-10-22, all Linux App Services in our subscription lost SSH access via the Azure Portal. Applications remain healthy and continue serving traffic normally. Log streaming works. SSH launches redirect through…

Azure App Service
Azure App Service

Azure App Service is a service used to create and deploy scalable, mission-critical web apps.

10,122 questions
asked 2026-10-23T18:59:36.86+00:00
Josh Yarbrough 26 Reputation points
edited a comment 2026-10-27T18:10:31.26+00:00
Jonathon D. Halford 0 Reputation points
1 answer One of the answers was accepted by the question author.

Azure App Service SCM/Kudu endpoint returns HTTP 503 — no worker assigned

I'm running a .NET 10 Blazor Web App on Azure App Service (Windows, Free F1 plan). Visual Studio publishing fails because the SCM/Kudu endpoint returns HTTP 503 Service Unavailable. The Kudu site and Advanced Tools are also unavailable. Azure diagnostics…

Azure App Service
Azure App Service

Azure App Service is a service used to create and deploy scalable, mission-critical web apps.

10,122 questions
asked 2026-10-27T16:44:06.1633333+00:00
Corey Orndoff 0 Reputation points
accepted 2026-10-27T17:48:08.83+00:00
Corey Orndoff 0 Reputation points
1 answer One of the answers was accepted by the question author.

Azure Windows App Service .NET 10: Kudu/SCM fails with 503 SiteRoutedToIncorrectWorker

We are seeing an SCM/Kudu routing failure on selected Windows Azure App Service applications configured for .NET 10. An authenticated request to the affected app’s SCM endpoint, such…

Azure App Service
Azure App Service

Azure App Service is a service used to create and deploy scalable, mission-critical web apps.

10,122 questions
asked 2026-10-27T05:03:18.73+00:00
Nik Petroff 20 Reputation points
edited a comment 2026-10-27T08:43:43.3+00:00
Jussi Palo 6 Reputation points
2 answers

Microsoft Entra authentication for Kudu VFS GET when SCM Basic Auth is disabled

For Azure App Service on Linux with SCM Basic Auth Publishing Credentials disabled, does the Kudu VFS REST endpoint GET /api/vfs/site/wwwroot/<filename> support direct Microsoft Entra bearer-token authentication? If supported, what token…

Azure App Service
Azure App Service

Azure App Service is a service used to create and deploy scalable, mission-critical web apps.

10,122 questions
asked 2026-10-26T17:08:08.3266667+00:00
admin email 0 Reputation points
answered 2026-10-27T00:01:10.0866667+00:00
Jose Benjamin Solis Nolasco 12,861 Reputation points Volunteer Moderator
2 answers

App Service stuck in AdminDisabled state after subscription reactivation — cannot start

Hi community, My Azure App Service has been stuck in AdminDisabled state for several days after my subscription was reactivated following a billing issue. The payment has been resolved and the subscription shows as Active, but the app still cannot be…

Azure App Service
Azure App Service

Azure App Service is a service used to create and deploy scalable, mission-critical web apps.

10,122 questions
asked 2026-09-29T14:05:23.01+00:00
Hussein Alwahab 0 Reputation points
answered 2026-10-26T08:02:32.3666667+00:00
Alex Burlachenko 26,275 Reputation points MVP Volunteer Moderator
2 answers

Web App: Migration Between Subscriptions in Different Entra Tenants — Name Reservation Issue

Problem description I am trying to migrate a production web app (Web App on Windows) from one subscription in a different Entra tenant to another. After deleting the web app, I attempted to recreate it with the same name in the new subscription, but I…

Azure App Service
Azure App Service

Azure App Service is a service used to create and deploy scalable, mission-critical web apps.

10,122 questions
asked 2026-10-24T22:15:47.2166667+00:00
LKMaryWill-5007 0 Reputation points
answered 2026-10-26T07:59:30.6266667+00:00
Alex Burlachenko 26,275 Reputation points MVP Volunteer Moderator
2 answers

When will PHP 8.4.27 (fix for CVE-2026-109618 / CVE-2026-109619) be rolled out to App Service on Linux?

Hi, we are running several WordPress sites on Azure App Service for Linux using the built-in PHP stack (publishing model "Code", runtime stack "PHP 8.4"). On October 21, 2026, the PHP project released emergency security updates for…

Azure App Service
Azure App Service

Azure App Service is a service used to create and deploy scalable, mission-critical web apps.

10,122 questions
asked 2026-10-21T15:16:40.6566667+00:00
Tristan Marzec 25 Reputation points
edited a comment 2026-10-25T11:24:14.0466667+00:00
PAVAN KUMAR GADDE 0 Reputation points Microsoft External Staff
1 answer

Aspose.Words (embedded .NET) on Azure App Service Linux (Python) fails with "No usable version of libssl was found" — base image is bullseye/OpenSSL 1.1, .NET needs OpenSSL 3

Environment Azure App Service on Linux, code deploy (Oryx build, not a custom container). Runtime stack: Python 3.11 (startup banner shows Python version : 3.11.15). Base OS confirmed via SSH: Debian 11 (bullseye), OpenSSL 1.1.1w, only libssl.so.1.1…

Azure App Service
Azure App Service

Azure App Service is a service used to create and deploy scalable, mission-critical web apps.

10,122 questions
asked 2026-10-24T00:32:48.5333333+00:00
Prasanna Sai Kommineni 90 Reputation points
commented 2026-10-24T13:03:19.59+00:00
Prasanna Sai Kommineni 90 Reputation points
1 answer

Azure App Service Linux Easy Auth returns HTTP 500 on Microsoft Entra OAuth callback

I'm configuring Azure App Service Authentication (Easy Auth) with Microsoft Entra ID on a Linux App Service B1 plan. Microsoft Entra sign-in succeeds, but the application consistently returns HTTP 500 on POST /.auth/login/aad/callback. No…

Azure App Service
Azure App Service

Azure App Service is a service used to create and deploy scalable, mission-critical web apps.

10,122 questions
asked 2026-10-24T03:51:02.5966667+00:00
Oleksandr Khokhoulia 0 Reputation points
edited the question 2026-10-24T03:52:15.2933333+00:00
Oleksandr Khokhoulia 0 Reputation points
1 answer One of the answers was accepted by the question author.

Requested App Service Plan not available in resource group

Hello, I need to update the App Service Plan of one of my web apps to P*MV3. However I am getting the following error when trying to switch : Requested features 'Linux Worker, MV3 Series Worker' not available in resource group [...]. Please try using a…

Azure App Service
Azure App Service

Azure App Service is a service used to create and deploy scalable, mission-critical web apps.

10,122 questions
asked 2025-04-15T12:33:33.37+00:00
Théo Mouchabac 60 Reputation points
commented 2026-10-23T15:23:38.85+00:00
George Flourentzos 0 Reputation points
2 answers

Azure App Service intermittently serves different SSL certificate chains for the same hostname and certificate

We're experiencing intermittent SSL certificate trust errors on our Azure App Service websites, including NET::ERR_CERT_AUTHORITY_INVALID in Chrome and certificate trust warnings in Safari. We've investigated and found that Azure intermittently serves…

Azure App Service
Azure App Service

Azure App Service is a service used to create and deploy scalable, mission-critical web apps.

10,122 questions
asked 2026-10-22T15:39:59.45+00:00
Anthony Burns 26 Reputation points
answered 2026-10-23T15:11:42.7066667+00:00
Anthony Burns 26 Reputation points
1 answer

Azure App Service (Windows) - PHP 5.6.40 visible in Kudu for .NET Framework application, security exposure concern

We have several Azure App Service (Windows) applications hosting**.NET Framework** workloads. We do not deploy or use PHP as part of our applications. During a security review following recently disclosed PHP vulnerabilities, we accessed the Kudu console…

Azure App Service
Azure App Service

Azure App Service is a service used to create and deploy scalable, mission-critical web apps.

10,122 questions
asked 2026-10-22T13:29:40.53+00:00
Kishor kumar Reddy Akki 55 Reputation points
commented 2026-10-22T15:49:36.9033333+00:00
Kishor kumar Reddy Akki 55 Reputation points
2 answers

Does a Windows Azure API based on .Net have any PHP inside it?

Does a Windows Azure API based on .Net have any PHP inside it? I have not managed to find a definitive answer to this, could you confirm there is no PHP running inside a Windows OS Azure API App Service running either .Net or .Net Core stack? If there is…

Azure App Service
Azure App Service

Azure App Service is a service used to create and deploy scalable, mission-critical web apps.

10,122 questions
asked 2026-10-22T08:19:37.99+00:00
Glyn Forster 0 Reputation points
commented 2026-10-22T15:45:15.42+00:00
Senthil kumar 2,915 Reputation points
0 answers

Linux App Service continuous WebJob stuck in “Disabling” after Stop: kuduagent never moves to “Stopping” or creates WEBJOBS_SHUTDOWN_FILE

Environment App Service on Linux, single instance, Always On enabled Stack DOTNETCORE|10.0; WEBSITE_RUN_FROM_PACKAGE is not set; WEBSITE_SKIP_RUNNING_KUDUAGENT=False One continuous WebJob, .NET 10, WebJobs SDK 3.0.47, run_command: run.sh…

Azure App Service
Azure App Service

Azure App Service is a service used to create and deploy scalable, mission-critical web apps.

10,122 questions
asked 2026-10-22T12:39:16.81+00:00
Ben O'Donovan 0 Reputation points
1 answer

Web App (Windows): Unable to delete orphaned App Service plan — Deletion fails with HTTP 409

Problem description I am trying to delete an App Service plan named 'SouthCentralUSPlan' in the resource group 'fulfillment'. However, the deletion attempt results in an HTTP 409 error, indicating a conflict. The plan still shows a Function App named…

Azure App Service
Azure App Service

Azure App Service is a service used to create and deploy scalable, mission-critical web apps.

10,122 questions
asked 2026-10-02T16:00:29.41+00:00
AnthonyNguyen-3653 0 Reputation points
commented 2026-10-22T05:34:40.1833333+00:00
SHOUMIK CHAKRAVARTY 1,230 Reputation points
1 answer

Azure AppService CVE-2026-109619 CVE-2026-109618

Could you provide me an information when AppService Runtime Stack with PHP 8.3+ will be updated to PHP 8.3.35?

Azure App Service
Azure App Service

Azure App Service is a service used to create and deploy scalable, mission-critical web apps.

10,122 questions
asked 2026-10-21T16:23:17.6633333+00:00
Mateusz Juras 0 Reputation points
edited an answer 2026-10-22T04:15:29.38+00:00
Andriy Bilous 12,596 Reputation points MVP
2 answers

Web App for Containers: PHP Version Mismatch — Live Site Shows Older PHP Version

Microsoft WordPress on Azure App Service — Managed PHP 8.4 image channel not receiving security updates Problem description We identified that our WordPress on Azure App Service installation was running PHP 8.4.16 despite being configured to use…

Azure App Service
Azure App Service

Azure App Service is a service used to create and deploy scalable, mission-critical web apps.

10,122 questions
asked 2026-10-21T16:58:51.5466667+00:00
answered 2026-10-21T21:32:45.6133333+00:00
Praneeth Maddali 12,670 Reputation points Microsoft External Staff Moderator
1 answer

PHP 8.5.12 Update - Critical remote code execution vulnerabilities

PHP 8.5.12 was released on 21 October 2026 to fix two critical remote code execution vulnerabilities (CVE-2026-109618 and CVE-2026-109619). My Azure App Service is configured to use the Latest platform release channel, but it is still running PHP…

Azure App Service
Azure App Service

Azure App Service is a service used to create and deploy scalable, mission-critical web apps.

10,122 questions
asked 2026-10-21T14:22:45.2433333+00:00
Ben S 25 Reputation points
commented 2026-10-21T17:43:32.95+00:00
Ben S 25 Reputation points