# Which Problems Are Solved - Token exchange rejects `urn:zitadel:iam:org:roles🆔{orgID}` when that scope is not already present on the subject or actor token (`invalid_scope`). - A documented least-privilege pattern — exchanging a broad access token for one whose roles claims are limited to a single organization — has been broken since the v4.15.3 token-exchange hardening and was not restored by #12312. - A naive allow-any-`roles:id` exception would let a previously narrowed token widen again (switch org filter, or drop the filter and get all role orgs), including via an actor token's filter on actor-path exchanges. - A client-requested bare `urn:zitadel:iam:org:roles🆔` (empty org id) is not a meaningful filter and should be rejected on exchange. # How the Problems Are Solved - Treats `OrgRoleIDScope` as a restriction filter with downscope-only semantics via `applyOrgRoleIDScopeDownscoping(requested, ceilingScopes)`: - union / standard exchange passes the **subject** token scopes as the ceiling (actor filters ignored) - impersonation (scopeless `user_id` / `id_token` subject) passes the **actor** token scopes as the ceiling - ceiling unfiltered → any requested `roles:id` is allowed (broad → narrow) - ceiling filtered → requested filters must be ⊆ that set - ceiling filtered but request omits them → inherit the ceiling (omit must not re-widen) - Rejects a **client-requested** bare `urn:zitadel:iam:org:roles🆔` in `validateTokenExchangeScopes` after normalize (before empty-request fallback). Input tokens may still carry the bare prefix as a degenerate ceiling; empty-request / omit inherit does not re-trigger the rejection. - Keeps non-restriction scopes on the existing subject ∪ actor presence checks. - Adds unit coverage for downscope, further downscope, widen rejection, omit-inherit, mixed subject/actor filters, empty-scope access/JWT subjects, and bare-prefix request/ceiling cases. - Adds an integration test for broad → `roles:id` filtered roles, plus a second exchange that rejects widening to another org. - Documents downscope-only and omit-inherit behavior in the reserved scopes table and the token exchange guide. # Additional Changes - Updates the token-exchange guide Scope section to reflect that authorization-related reserved scopes must already be present on input tokens (aligned with the v4.15.3 hardening), rather than suggesting scope can be freely extended. # Additional Context - Closes #12413 - Follow-up for PR #12312 - Related discussion in #11869 (recommended `roles:id` workaround; this restores that path for token exchange without allowing filter widening) - Behavior note for release notes: during token exchange, an existing `urn:zitadel:iam:org:roles🆔*` filter on the subject is inherited when omitted from the request, so role claims cannot re-widen. --------- Co-authored-by: Cursor Agent <[email protected]> Co-authored-by: Livio Spring <[email protected]>
@zitadel/docs
Documentation for Zitadel, built with Fumadocs and Next.js.
Getting Started
Ensure you have followed the root quick start to set up dependencies.
Local Development
Ensure all dependencies are installed:
pnpm install
Start the development server:
pnpm nx run @zitadel/docs:dev
The site will be available at http://localhost:3000.
Scripts
Key scripts for documentation workflows:
| Script | Description |
|---|---|
dev |
Starts the development server. |
build |
Builds the production application. |
fetch:remote-content |
Fetches remote tags and referenced content. |
generate |
Runs all generation steps (fetch:remote-content, generate:proto-docs, generate:api-reference, generate:index-pages). |
check:links |
Validates content integrity (broken links, missing frontmatter, schema errors). |
check-types |
Validates typescript types. |
test |
Runs all validation steps (check-types, check:links). |
lint |
checks for code style and syntax errors (ESLint). |
clean |
Cleans the build output and generated files. |
Validation
- Code Quality: Run
pnpm nx run @zitadel/docs:lintto check for syntax and style issues in JS/TS/MDX files. - Content Integrity: Run
pnpm nx run @zitadel/docs:check-linksto validate content structure, including:- Broken internal links
- Missing required front-matter (e.g.,
title) - Image references
Troubleshooting
Issue: Nx configuration not found or "nx" command not found
If you see errors like:
NX Cannot find configuration for task @zitadel/zitadel:@zitadel/docs:generate
Pass --verbose to see the stacktrace.
or
pnpm nx run @zitadel/docs:dev
ERR_PNPM_RECURSIVE_EXEC_FIRST_FAIL Command "nx" not found
Did you mean "pnpm nx"?
Root cause: Your dependency cache or node_modules is out of sync.
Solution: Run these commands from the repository root in order:
- Clear node_modules:
rm -rf node_modules— removes the installed dependency folder - Clear pnpm cache:
pnpm cache delete— clears pnpm's internal package cache - Reinstall dependencies:
pnpm install— reinstalls all dependencies fresh - Test the setup:
pnpm nx run @zitadel/docs:generate— verifies everything works
This resolves 99% of setup-related issues.
Contributing
Build Process
The docs build process automatically handles the following steps via generate:
- Downloads required protoc plugins.
- Generates gRPC documentation from proto files.
- Generates API documentation from OpenAPI specs.
- Generates index files for directory structures.
Style Guide
- Variables: Use environment variables in code snippets where possible.
- Embedded Content: Use
_filename.mdxfor content embedded in other pages (not indexed individually). - Code Embedding: Use the
fileproperty in code blocks to embed code from the repo. - Voice: Use active voice and sentence case for titles.
Refer to the Google Developer Style Guide for general guidelines.
Adding Content
All documentation content is located in the content directory. Note that the system strictly accepts only .mdx files.
To add a new page:
- Create a
.mdxfile in the appropriate subdirectory ofcontent. - Register the new page in the sidebar settings at
lib/sidebar-data.tsto make it accessible in the navigation.
Pull Requests
Use docs(<scope>): <short summary> for PR titles.
Pass quality checks before submitting:
pnpm nx run @zitadel/docs:build