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DCR fails to solve redirect URI issues, causing client authentication bugs

By PulseAugur Editorial · [1 sources] ·

This post delves into the complexities of redirect URIs and session bugs that arise even after correctly implementing Dynamic Client Registration (DCR) for identity services. It highlights that DCR, while seemingly a solution, merely shifts the trust boundary from manual configuration to ensuring agreement between two independent systems. The article details three specific failure modes: discrepancies between authorization and registration endpoints, issues with loopback redirect URIs for CLI clients, and silent failures of stale client registrations that prevent clients from re-registering. AI

IMPACT N/A

RANK_REASON The article discusses technical implementation details and failure modes of a specific software feature (Dynamic Client Registration) rather than a new product release, research breakthrough, or significant industry event.

Read on dev.to — MCP tag →

AI-generated summary · Google Gemini · from 1 sources. How we write summaries →

DCR fails to solve redirect URI issues, causing client authentication bugs

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The article discusses technical implementation details and failure modes of a specific software feature (Dynamic Client Registration) rather than a new product release, research breakthrough, or si…
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product, infra
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COVERAGE [1]

  1. dev.to — MCP tag TIER_1 English(EN) · QuietDesk Studio ·

    The MCP Redirect URI Edge Cases Dynamic Client Registration Doesn't Save You From

    <h2> Scope of this post </h2> <p>This is not another "what is redirect_uri_mismatch" explainer. I already wrote the desktop-client version of that bug elsewhere on this blog — localhost vs 127.0.0.1, ephemeral local callback servers, the basics.</p> <p>This post covers a narrower…

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