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thaJeztah merged 1 commit into from
May 28, 2024
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docs: deprecate daemon's api-cors-header flag #5085

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21 changes: 21 additions & 0 deletions docs/deprecated.md
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Expand Up @@ -50,6 +50,7 @@ The table below provides an overview of the current status of deprecated feature

| Status | Feature | Deprecated | Remove |
|------------|------------------------------------------------------------------------------------------------------------------------------------|------------|--------|
| Deprecated | [API CORS headers](#api-cors-headers) | v27.0 | v28.0 |
| Deprecated | [Unauthenticated TCP connections](#unauthenticated-tcp-connections) | v26.0 | v27.0 |
| Deprecated | [`Container` and `ContainerConfig` fields in Image inspect](#container-and-containerconfig-fields-in-image-inspect) | v25.0 | v26.0 |
| Deprecated | [Deprecate legacy API versions](#deprecate-legacy-api-versions) | v25.0 | v26.0 |
Expand Down Expand Up @@ -112,6 +113,26 @@ The table below provides an overview of the current status of deprecated feature
| Removed | [`--run` flag on `docker commit`](#--run-flag-on-docker-commit) | v0.10 | v1.13 |
| Removed | [Three arguments form in `docker import`](#three-arguments-form-in-docker-import) | v0.6.7 | v1.12 |

### API CORS headers

**Deprecated in Release: v27.0**
**Target For Removal In Release: v28.0**

The `api-cors-header` configuration option for the Docker daemon is insecure,
and is therefore deprecated and scheduled for removal.
Incorrectly setting this option could leave a window of opportunity
for unauthenticated cross-origin requests to be accepted by the daemon.

Starting in Docker Engine v27.0, this flag can still be set,
but it has no effect unless the environment variable
`DOCKERD_DEPRECATED_CORS_HEADER` is also set to a non-empty value.

This flag will be removed altogether in v28.0.

This is a breaking change for authorization plugins and other programs
that depend on this option for accessing the Docker API from a browser.
If you need to access the API through a browser, use a reverse proxy.

### Unauthenticated TCP connections

**Deprecated in Release: v26.0**
Expand Down