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[GH-ISSUE #1753] change maximum file size #1050

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opened 2026-03-03 02:05:49 +03:00 by kerem · 4 comments

kerem commented

2026-03-03 02:05:49 +03:00

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Originally created by @vista-narvas on GitHub (Jun 6, 2021).
Original GitHub issue: https://github.com/dani-garcia/vaultwarden/issues/1753

Subject of the issue

when uploading a file for send, i get the error
"Maximum file size is 100 MB."
i cant find any config for changing the maximum file size

Deployment environment

vaultwarden version:
vaultwarden/server:latest
just pulled again

Install method:
docker
Clients used:
web vault and browser addon
Reverse proxy and version:
traefik
MySQL/MariaDB or PostgreSQL version:
nope
Other relevant details:

Steps to reproduce

Expected behaviour

a way to set the maximum file size

Actual behaviour

Troubleshooting data

Originally created by @vista-narvas on GitHub (Jun 6, 2021). Original GitHub issue: https://github.com/dani-garcia/vaultwarden/issues/1753   ### Subject of the issue  when uploading a file for send, i get the error "Maximum file size is 100 MB." i cant find any config for changing the maximum file size ### Deployment environment     * vaultwarden version: vaultwarden/server:latest just pulled again  * Install method: docker * Clients used:  web vault and browser addon * Reverse proxy and version:  traefik * MySQL/MariaDB or PostgreSQL version:  nope * Other relevant details: ### Steps to reproduce  ### Expected behaviour  a way to set the maximum file size ### Actual behaviour  ### Troubleshooting data

kerem closed this issue

2026-03-03 02:05:50 +03:00

kerem commented

2026-03-03 02:05:50 +03:00

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@RealOrangeOne commented on GitHub (Jun 7, 2021):

Looking at the code, the default is 110MB, but it can be overriden with the $USER_ATTACHMENT_LIMIT environment variable

@RealOrangeOne commented on GitHub (Jun 7, 2021): Looking at the code, the [default is 110MB](https://github.com/dani-garcia/vaultwarden/blob/main/src/api/core/sends.rs#L171), but it can be overriden with the [`$USER_ATTACHMENT_LIMIT`](https://github.com/dani-garcia/vaultwarden/blob/main/.env.template#L202) environment variable

kerem commented

2026-03-03 02:05:50 +03:00

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@vista-narvas commented on GitHub (Jun 7, 2021):

i tried using USER_ATTACHMENT_LIMIT: 8388608 in my docker-compose.yml
and im still not able to upload bigger files

i think USER_ATTACHMENT_LIMIT is only for the global limit
in the error it says "Attachment size limit reached! Delete some files to open space"
if i change USER_ATTACHMENT_LIMIT to 1 when i try to upload a small file i get that error

@vista-narvas commented on GitHub (Jun 7, 2021): i tried using USER_ATTACHMENT_LIMIT: 8388608 in my docker-compose.yml and im still not able to upload bigger files i think USER_ATTACHMENT_LIMIT is only for the global limit in the [error](https://github.com/dani-garcia/vaultwarden/blob/main/src/api/core/sends.rs#L167) it says "Attachment size limit reached! Delete some files to open space" if i change USER_ATTACHMENT_LIMIT to 1 when i try to upload a small file i get that error

kerem commented

2026-03-03 02:05:50 +03:00

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@jjlin commented on GitHub (Jun 7, 2021):

Max attachment size is primarily limited by what the clients are designed to handle, and you can't change that without building your own version of the client. See https://bitwarden.com/help/article/attachments/ for details.

In principle, the server could handle arbitrarily large attachments, but it also has some checks to mirror the client limits.

@jjlin commented on GitHub (Jun 7, 2021): Max attachment size is primarily limited by what the clients are designed to handle, and you can't change that without building your own version of the client. See https://bitwarden.com/help/article/attachments/ for details. In principle, the server could handle arbitrarily large attachments, but it also has some checks to mirror the client limits.

kerem commented

2026-03-03 02:05:51 +03:00

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@vista-narvas commented on GitHub (Jun 7, 2021):

ok so the limiting factor is the client
i guess there is nothing to do about that
thank you for your time

@vista-narvas commented on GitHub (Jun 7, 2021): ok so the limiting factor is the client i guess there is nothing to do about that thank you for your time

kerem referenced this issue

2026-03-03 09:08:51 +03:00

[PR #1150] [MERGED] Fixed foreign-key (mariadb) errors. #2902