Locked vault contents visible via “Save to Files” when vault should be inaccessible

[beylerburak]

Summary

When the Cryptomator vault is locked, it’s still possible to access both folder structure and file contents through the iOS “Save to Files” dialog. Even though the vault appears locked in the Cryptomator app, when you try to save something via “Save to Files” (for example, a screenshot or screen recording), you can not only browse folders but also open and view the actual files stored inside the locked vault.

Please agree to the following

• I have searched existing issues for duplicates
• I agree to follow this project's Code of Conduct

What software is involved?

Environment:
• Operating System: iOS 26.0 (23A340)
• Device: iPhone 16 Pro Max
• Cryptomator: 2.7.2 (1384)
• File Provider Integration: Enabled

Volume Type

None

Steps to Reproduce

1.	Lock the vault in Cryptomator.
2.	Open any app that supports Save to Files (e.g., Photos, Safari).
3.	Choose Save to Files.
4.	Navigate to the Cryptomator vault location.
5.	You can see folders and even open files inside the locked vault.

Expected Behavior

When the vault is locked, it should be completely inaccessible from all apps and system dialogs.
No folder structure, filenames, or file contents should be visible until the user unlocks the vault through the Cryptomator app.

Actual Behavior

Even when the vault is locked in the Cryptomator app, using the “Save to Files” option from another iOS app (like Photos or Safari) still allows browsing the vault’s folder structure and opening the actual files inside.
This means the vault’s content is accessible even though it appears locked.

Reproducibility

Always

Relevant Log Output

Anything else?

No response

[iammajid]

@beylerburak Thanks for reporting this issue!
We’ve tried to reproduce the described behavior but couldn’t observe any actual access to the vault’s contents once it’s locked. What we’re seeing instead is a short moment where previously visible thumbnails still appear in the Files app or Safari’s file picker this seems to be caused by Safari’s caching behavior.

Once Safari is completely closed and restarted, the cached thumbnails disappear, and no further browsing or opening of files is possible while the vault remains locked.

Unfortunately, this is an upstream caching issue that we can’t fully control. Could you please share your locking settings (e.g., auto-lock timing, background behavior) so we can verify if there’s anything unusual on that side?