It looks like they recently added scanning QR codes as a way to import tunnel definitions: https://git.zx2c4.com/wireguard-android/commit/?id=2087a10f5533e4b61811a3cb4e5019dcf2560d81

That permission should probably only be requested as-needed but I suspect that wg is targeting an older Android API that doesn't expose that capability.

From: WireGuard <wireguard-bounces@lists.zx2c4.com> on behalf of John Huttley <john@mib-infotech.co.nz>
Sent: Thursday, July 26, 2018 4:02 PM
To: wireguard@lists.zx2c4.com
Subject: Android Update wants Camera Permissions

I just updated. It wanted Camera Access.

Odd..

--John

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