git-ecosystem / git-ecosystem/git-credential-manager

GCM not working for AzureDevOps via SSO (oauth2) after upgrade to MacOS Sequoia 15.1

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auth-issue platform:osx
Dominant language
C#
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Description

Version

2.6.0+3c28096588f549cb46f36b552390514356830abe

Operating system

macOS

OS version or distribution

Sequoia 15.1

Git hosting provider(s)

Azure DevOps, Azure DevOps Server (TFS/on-prem)

Other hosting provider

No response

(Azure DevOps only) What format is your remote URL?

https://{org}.visualstudio.com

Can you access the remote repository directly in the browser?

Yes, I can access the repository

Expected behavior

When I run a git command, it asks me to login using SSO. Once I login it should authenticate and return no errors.

Actual behavior

When I run a git command, it asks me to login in using SSO to my Microsoft account.

However, it says my browser cannot open the page localhost:59780/..... because it is not secure.

I'm not sure why this is the case, but it has been consistent since my Mac was updated to Sequoia.

Logs

Cannot add because I'm not sure if it includes private info.

Contributor guide

Open the contributing guide

First steps

  1. Read the whole issue, then the project's contributing guide.
  2. Comment on the issue to say you are picking it up — it saves two people doing the same work.
  3. Fork the repository and make your change on a branch.
  4. Open a pull request that references the issue number.

Research direction

No source files, tests, or entry points are named in the report. Start by reproducing the SSO flow with Azure DevOps at an https://{org}.visualstudio.com remote on macOS Sequoia 15.1, then trace the localhost:59780 browser callback and consult the available authentication logs. Done means the browser completes SSO and the Git command authenticates without errors.

Written by the indexing model from the issue text.

Assessment

Tech stack
azure, csharp, macos
Domain
authentication, desktop
Issue type
Bug
Difficulty
4/5
Estimated time
3-5 days
Activity status
Stale
Clarity
Mostly clear
Newbie friendliness
35/100

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