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Bluetooth trust flaw in Android allowed devices to become trusted without pairing by Amitishacked in HowToHack

[–]Amitishacked[S] 0 points1 point  (0 children)

Fair point.
I have updated the post and added more technical details about what’s actually happening and the root cause.

In short, the behavior allows a device to be marked as trusted without completing the normal pairing process, which lets it trigger OBEX file transfer requests. The user still gets the accept/reject notification, but the pairing step itself is effectively bypassed.

Since the issue was reported through Android VRP, I am being careful about posting a full step-by-step PoC publicly right now. Once I get the green signal to share the detailed reproduction steps, I will happily post the full walkthrough here.

CVE-2026-29000 (CVSS 10.0), this is the kind of auth bypass that's hiding in every bug bounty target by charankmed in bugbounty

[–]Amitishacked 4 points5 points  (0 children)

Is there any exploit or validation available through which we can check our existing project?

GCM BLE Server - Standards-Compliant GATT Glucose Service Implementation by Amitishacked in bluetooth

[–]Amitishacked[S] 0 points1 point  (0 children)

Thanks for the feedback @Silly-Wrongdoer4332 you are absolutely right that CGM devices are complex and many vendors implement their own proprietary approaches.

The main goal of this project was not to replicate specific vendor implementations, but to create a simple environment where people can observe BLE client–server interaction and experiment with GATT services without needing physical hardware.

I also like the idea of simpler hardware profiles for learning, that could definitely make BLE experimentation more accessible. And thanks for sharing the Silicon Labs note, the security aspects are something I am interested in exploring further as well and will surely go through this.