Certification error with the SSL cert isssued by ZeroSSL

[zen010101]

Steps To Reproduce

self-host using docker and issed a new ssl cert for it using the acme.sh with the ZeroSSL server:
acme.sh --server ZeroSSL --issue -d dns_dp -d *.example.com

then login on the android with the Bitwarden app which version is 22023.12.0(8588). it will display an error message after click the Next button which will let me input the self-host server address:

java.security.cert.CertPathValidatiorException: Trust anchor for certification path not found.

then I change a new cert issued by Let's encrypt , all things work well.

Expected Result

let me input the self-host server address

Actual Result

java.security.cert.CertPathValidatiorException: Trust anchor for certification path not found.

Screenshots or Videos

No response

Additional Context

No response

Operating System

Android

Operating System Version

No response

Device

Xiaomi 10 Ultra

Build Version

2023.12.0(8588)

Beta

• Using a pre-release version of the application.

[Krychaz]

This indicates that your device is missing some certificate files. Please follow the steps here: https://community.bitwarden.com/t/android-client-login-bitwarden-https-cert-problem/12132 to download the missing certificate files, and then follow the instructions here: https://support.google.com/pixelphone/answer/2844832?hl=en to upload those files to your device.

Please note that if you're self-hosting your own Bitwarden server, you'll need to supply the certificates you're using and not use the ones for our web vault. Also note that the procedure to upload the certificate files to your device may be slightly different from the guide above and will depend on the make and model of your Android device.

More information here: https://bitwarden.com/help/certificates/#trust-a-self-signed-certificate

[zen010101]

but, when I browse my self-host web site with the same cert, the Edge and other browsers are all no problem. why only bitwarden client meets errors.

[Krychaz]

As explained in the links above, the web vault has the SSL certificate when you access it via the web. However the apps do not have this ability, they need a certificate file in order to work properly.

[zen010101]

It doesn't work following the steps gived by the site you mentioned. Finally, I downloaded the cert from official site: https://letsencrypt.org/certs/lets-encrypt-r4.pem and installed to my phone successfully. Krystian Kan ***@***.***> 于2023年12月22日周五 17:55写道：

…

As explained in the links above, the web vault has the SSL certificate when you access it via the web. However the apps do not have this ability, they need a certificate file in order to work properly. — Reply to this email directly, view it on GitHub <bitwarden/mobile#2911 (comment)>, or unsubscribe <https://github.com/notifications/unsubscribe-auth/AOOETFF4EPWHTJDHMEKASH3YKVKHTAVCNFSM6AAAAABA6OWYZ6VHI2DSMVQWIX3LMV43OSLTON2WKQ3PNVWWK3TUHMYTQNRXGQ3TSMBTGA> . You are receiving this because you authored the thread.Message ID: ***@***.***>