open-webui/backend/open_webui/utils
Classic298 83890f18b9
feat: cap profile image data URI size to bound model/avatar bloat (#25476)
* feat: cap profile image data URI size to bound model/avatar bloat

validate_profile_image_url() validated data-URI format (MIME allowlist,
SVG rejection, scheme checks) but never its length, so a valid
data:image/...;base64,<huge> passed for both custom-model icons and user
avatars. Large inline images bloat Postgres and the Redis MODELS hash and
degrade model-list latency.

Add PROFILE_IMAGE_MAX_DATA_URI_SIZE (default 256 KiB, 0 disables) and
reject oversized data URIs in the shared validator, so both model meta
(ModelMeta.profile_image_url) and user avatars (UpdateProfileForm) are
bounded at one chokepoint. ModelMeta already clears invalid values to
None on read, so existing oversized icons stop propagating into the
MODELS hash on the next refresh.

Fixes #25468

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

* fix: default PROFILE_IMAGE_MAX_DATA_URI_SIZE to None (no cap)

Per review: opt-in rather than a 256 KiB default. Unset leaves data URIs
uncapped; the validator already skips the check on a falsy value.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

---------

Co-authored-by: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
2026-06-01 09:57:06 -07:00
..
access_control fix: respect access_type in shared-chat file authorization branch (#24755) 2026-05-19 22:09:56 +04:00
images refac: modernize type annotations (PEP 604 / PEP 585) 2026-05-12 17:10:15 +09:00
mcp refac: modernize type annotations (PEP 604 / PEP 585) 2026-05-12 17:10:15 +09:00
telemetry refac: modernize type annotations (PEP 604 / PEP 585) 2026-05-12 17:10:15 +09:00
actions.py refac: modernize type annotations (PEP 604 / PEP 585) 2026-05-12 17:10:15 +09:00
anthropic.py refac: modernize type annotations (PEP 604 / PEP 585) 2026-05-12 17:10:15 +09:00
asgi_middleware.py refac: modernize type annotations (PEP 604 / PEP 585) 2026-05-12 17:10:15 +09:00
audit.py refac: modernize type annotations (PEP 604 / PEP 585) 2026-05-12 17:10:15 +09:00
auth.py fix(auth): use request.scope["path"] to prevent CVE-2026-48710 (BadHost) (#25123) 2026-05-28 16:41:56 -05:00
automations.py refac: modernize type annotations (PEP 604 / PEP 585) 2026-05-12 17:10:15 +09:00
calendar.py feat: calendar 2026-04-19 19:15:05 +09:00
channels.py refac 2026-03-17 17:58:01 -05:00
chat.py fix: move bypass_system_prompt off query parameter onto request.state (#25156) 2026-05-31 14:53:53 -07:00
code_interpreter.py refac: modernize type annotations (PEP 604 / PEP 585) 2026-05-12 17:10:15 +09:00
embeddings.py refac: modernize type annotations (PEP 604 / PEP 585) 2026-05-12 17:10:15 +09:00
files.py fix: get_image_base64_from_file_id 2026-05-19 20:33:46 +04:00
filter.py refac: modernize type annotations (PEP 604 / PEP 585) 2026-05-12 17:10:15 +09:00
groups.py refac: modernize type annotations (PEP 604 / PEP 585) 2026-05-12 17:10:15 +09:00
headers.py refac 2026-05-19 21:35:04 +04:00
logger.py refac 2026-05-28 16:33:48 -05:00
middleware.py refac 2026-06-01 09:30:15 -07:00
misc.py refac 2026-05-19 22:25:39 +04:00
models.py refac: modernize type annotations (PEP 604 / PEP 585) 2026-05-12 17:10:15 +09:00
oauth.py fix: disable redirect following in OAuth picture fetch (SSRF) (#24809) 2026-05-19 23:57:38 +04:00
payload.py refac: modernize type annotations (PEP 604 / PEP 585) 2026-05-12 17:10:15 +09:00
pdf_generator.py refac: modernize type annotations (PEP 604 / PEP 585) 2026-05-12 17:10:15 +09:00
plugin.py refac: modernize type annotations (PEP 604 / PEP 585) 2026-05-12 17:10:15 +09:00
rate_limit.py refac: modernize type annotations (PEP 604 / PEP 585) 2026-05-12 17:10:15 +09:00
redis.py refac: clean up Redis sentinel utilities and import grouping 2026-05-21 11:47:25 +04:00
response.py refac: modernize type annotations (PEP 604 / PEP 585) 2026-05-12 17:10:15 +09:00
sanitize.py refac 2026-03-17 17:58:01 -05:00
security_headers.py refac: modernize type annotations (PEP 604 / PEP 585) 2026-05-12 17:10:15 +09:00
session_pool.py refac: modernize type annotations (PEP 604 / PEP 585) 2026-05-12 17:10:15 +09:00
task.py refac: modernize type annotations (PEP 604 / PEP 585) 2026-05-12 17:10:15 +09:00
tools.py fix: log expected fetch/transcript/tool-server failures as warnings (#24903) 2026-05-19 21:55:40 +04:00
validate.py feat: cap profile image data URI size to bound model/avatar bloat (#25476) 2026-06-01 09:57:06 -07:00
webhook.py refac: modernize type annotations (PEP 604 / PEP 585) 2026-05-12 17:10:15 +09:00