Seven security issues from an audit, plus album pages and the map coming up empty against Immich 3.x. Verified against a real Immich 3.0.3 instance in a production build. Security: - Admin session forgery via a hardcoded 'dev-fallback-secret' signing key that bypassed the production AUTH_SECRET guard - /api/map ignored album passwords and returned working asset tokens; rewriting ?size=thumbnail to ?size=original downloaded full-resolution originals from protected albums - Admin login had no rate limit, and the client IP came from a spoofable header, so rotating it bypassed every limit in the app - Raw Immich asset UUIDs were serialized into the RSC payload - Album tokens never expired server-side; a captured token replayed forever - Path traversal into the Immich API via an unvalidated album id - /admin ran with no enforced CSP (only Report-Only reached it) TRUSTED_PROXIES is replaced by TRUSTED_PROXY_HOPS. The old variable matched proxy IPs against the socket peer address, which self-hosted Next.js never exposes, so the check could never pass: unset, the limiter read a spoofable header; set, every request shared one bucket and a single client could rate-limit the whole site. Migrates automatically. Immich 3.x: GET /albums/:id no longer embeds assets. Assets now come from POST /search/metadata with withExif: true — without that flag EXIF is omitted and grid aspect ratios, the lightbox panel and map markers stay empty. Drops support for Immich below 3.0, which now logs a warning. Upgrade: requires Immich 3.0+; set TRUSTED_PROXY_HOPS (nginx = 1); visitors of protected areas and admin sessions must log in once more. 91 unit tests (25 new); the new admin-auth and rate-limit cases were confirmed to fail against the pre-fix code. Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
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Gallery Configuration
All gallery structure is defined in content/gallery.yaml. Copy the example to get started:
cp content/gallery.yaml.example content/gallery.yaml
Tip
Prefer a visual interface? Enable the Admin Panel by setting
ADMIN_PASSWORDin your environment. It provides a drag-and-drop page builder that writes to these same YAML files automatically.
Contents:
- Hero Images
- Standalone Albums
- Subpages & Categories
- Grid Layout
- EXIF on Hover
- Footer
- About Page
- Finding UUIDs
Hero Images
Single image or crossfade carousel on the homepage:
# Single hero image
hero: 00000000-0000-0000-0000-000000000000
# Carousel (crossfade between multiple images)
hero:
- 00000000-0000-0000-0000-000000000000
- 11111111-1111-1111-1111-111111111111
- 22222222-2222-2222-2222-222222222222
Standalone Albums
Albums shown directly on the homepage as cards.
Note
The thumbnail image for each album grid card is automatically synced with the explicit "Cover Image" you select for that album inside the Immich Web UI.
albums:
- 11111111-1111-1111-1111-111111111111
- 22222222-2222-2222-2222-222222222222
Subpages
Group multiple albums into named collections. URLs are auto-generated from the name. The overall Subpage Cover Image shown on the homepage is automatically inherited from the Cover Image of the first album inside its list.
subpages:
- name: Japan # → /japan
title: 'Trip to Japan' # Optional: overrides the page heading
subtitle: '2024 adventures' # Optional: adds a subline under the heading
albums:
- 33333333-3333-3333-3333-333333333333 # Tokyo
- 44444444-4444-4444-4444-444444444444 # Kyoto
- name: Wedding – Smith # → /wedding-smith
password: clientpass123 # Optional: subpage-level protection
albums:
- 55555555-5555-5555-5555-555555555555
- 66666666-6666-6666-6666-666666666666:
title: 'Private Highlights'
password: 'album-secret-123' # Optional: album-level protection
Alternatively, you can use the object notation (recommended):
subpages:
'Japan':
title: 'Trip to Japan'
subtitle: '2024 adventures'
albums:
- 33333333-3333-3333-3333-333333333333
Sections
When a subpage contains many albums you can split them into named sections. A typographic table of contents with anchor links is automatically rendered above the albums. Sections are fully optional — omit them and you get the standard flat grid.
Each section can have:
| Field | Type | Required | Description |
|---|---|---|---|
title |
string | ✅ | Section heading + anchor name |
description |
string | ➖ | Optional subline under the heading |
albums |
list | ✅ | Album UUIDs (same format as regular albums) |
Within the albums list you can use a plain UUID, a simple title override, or an object with title and password:
albums:
- 'album-uuid' # → uses the Immich album name
- 'album-uuid': My Title # → displays "My Title" instead
- 'album-uuid':
title: My Private Title
password: 'secure-password' # → adds a password gate to this specific album
Full example:
subpages:
- name: Japan
title: Japan
subtitle: 'Travel through a land full of contrasts.'
sections:
- title: Tokyo
description: 'Megacity, neon lights, silence in the noise.'
albums:
- '33333333-3333-3333-3333-333333333333'
- '44444444-4444-4444-4444-444444444444': Shinjuku at night
- title: Kyoto
description: 'Temples and bamboo forests.'
albums:
- '55555555-5555-5555-5555-555555555555': Fushimi Inari
- '66666666-6666-6666-6666-666666666666'
- title: Osaka
albums: # description is optional
- '77777777-7777-7777-7777-777777777777'
Note
Each section title is automatically converted to a URL-safe anchor (
#tokyo,#kyoto, …). The TOC appearance (separator character, numbering style, section rule) is fully controlled by the active theme.
Grid Layout
Configure the photo grid globally or per-subpage:
# Global defaults
grid:
columns: 3 # number of columns (default: 3)
gap: 12 # gap in pixels (default: 12)
aspectRatio: '1' # "1", "3/2", "auto", etc. (default: "1")
layout: masonry # "masonry" | "uniform" | "showcase" | "filmstrip" | "editorial-flow"
subpages:
- name: Japan
grid: # per-subpage override
columns: 4
layout: uniform
aspectRatio: '3/2'
albums:
- ...
EXIF on Hover
Show camera/lens/settings when hovering over photos (enabled by default):
exifOnHover: false # set to false to disable
Footer
Optional minimal footer with social links:
footer:
name: John Doe
instagram: johndoe
email: hello@example.com
website: https://example.com
About Page
Create content/about.md with YAML frontmatter:
---
portrait: asset-uuid-for-your-portrait
name: Your Name
location: City, Country
gear:
- Camera Body
- Favorite Lens
---
Your bio text here. Supports full Markdown.
Finding UUIDs
- Album UUIDs: In Immich, go to Albums → click an album → the UUID is in the URL bar
- Asset UUIDs: Click any photo → the UUID is in the URL bar
System & Security
Advanced system settings are configured via environment variables in your .env or .env.local file.
Rate Limiting
To protect against brute-force attacks and resource exhaustion, Immich Folio includes an in-memory rate limiter.
RATE_LIMIT_RPM: Maximum requests per minute per IP (default:1500for general API,120for map data).
Trusted Proxies
If you run Immich Folio behind a reverse proxy (nginx, Traefik, Caddy, Cloudflare), tell it how many proxies sit in front. Without this, the rate limiter reads a client-supplied header and an attacker can pick their own bucket — defeating brute-force protection on the password endpoints.
TRUSTED_PROXY_HOPS: Number of reverse proxies in front of the app (default:0).
# nginx / Traefik / Caddy directly in front of the app
TRUSTED_PROXY_HOPS=1
# Cloudflare in front of nginx
TRUSTED_PROXY_HOPS=2
The client IP is taken that many entries from the right of X-Forwarded-For. Proxies append the address they actually observed, so everything to the left is client-supplied and ignored — a visitor sending X-Forwarded-For: 1.1.1.1 cannot influence which bucket they land in.
⚠️ The app must be reachable only through the proxy. Bind it to localhost (
127.0.0.1:3000) or keep it on an internal Docker network. If clients can connect directly they control the entire header, and no setting can recover the real IP.
Matching nginx config:
location / {
proxy_pass http://127.0.0.1:3000;
proxy_set_header Host $host;
proxy_set_header X-Real-IP $remote_addr;
proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
proxy_set_header X-Forwarded-Proto $scheme;
}
$proxy_add_x_forwarded_for is the important one: it appends the real peer address rather than overwriting the header.
Migrating from TRUSTED_PROXIES
TRUSTED_PROXIES has been removed. It matched proxy IPs against the socket peer address, which a self-hosted Next.js server never exposes — so the check never passed. Setting it silently put every visitor into one shared rate-limit bucket, letting a single client trip the limit for the entire site. If it is still set, the app assumes TRUSTED_PROXY_HOPS=1 and logs a warning; replace it with an explicit value.