"Unable to hash data" error occurs when trying to register a password that exceeds 72 characters.

[nexryai]

Before you start please confirm the following.

• Yes, I've searched similar issues on GitHub.
• Yes, I've checked whether this issue is covered in the Portainer documentation or knowledge base.

Problem Description

"Unable to hash data" error occurs when trying to register a password that exceeds 72 characters on the initial setup page.
This error may be related to the limitation that bcrypt can only hash strings up to 72 bytes.

Expected Behavior

Password will be registered successfully

Actual Behavior

Unable to hash data error and cannot set password for admin account

Steps to Reproduce

1. When Portainer is launched for the first time, the initial setup page will be displayed
2. Enter a password of at least 73 characters

Portainer logs or screenshots

No response

Portainer version

2.19.1

Portainer Edition

Community Edition (CE)

Platform and Version

Docker version 24.0.6, build ed223bc

OS and Architecture

Debian12 amd64

Browser

Firefox 118.0.1

What command did you use to deploy Portainer?

docker-compose.yml

version: '3'
services:
  portainer:
    image: portainer/portainer-ce:latest
    container_name: portainer
    ports:
      - 127.0.0.1:9000:9000
    restart: unless-stopped
    volumes:
      - /etc/localtime:/etc/localtime:ro
      - /var/run/docker.sock:/var/run/docker.sock:ro
      - ./data:/data

Additional Information

No response

[t3dium]

Just encountered the same issue, took me a great while to boil it down to the long password being the cause. A more specific error such as "password too long" or some sort of warning would be convenient.

[Cfrolich13]

I just ran into this. Is there a technical reason for the length limit?

[urda]

I also just encountered this. If there is a limit why does the UI not prevent it?

[urda]

It seems, to me, we should have warnings at these locations:

• portainer/app/portainer/views/init/admin/initAdmin.html

  Line 70 in 560a1a0

  <span>The password must be at least {{ requiredPasswordLength }} characters long.</span>

• portainer/app/react/components/PasswordCheckHint.tsx

  Line 25 in 560a1a0

  The password must be at least {minPasswordLength} characters long.