CVE-2026-89034 TCH QRing R20_B006 Unauthenticated BLE Access
Unauthenticated BLE access allows nearby attackers to bypass authentication and read sensitive health data from the smart ring.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-89034?
CVE-2026-89034 is a high-severity authentication bypass vulnerability in TCH QRing, published on 16 Sep 2026. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
TCH QRing smart ring model R20_B006 running firmware RT09R20_1.00.00_250318 contains an unauthenticated Bluetooth Low Energy access vulnerability that allows any nearby attacker to connect to the device without pairing, authentication, or user approval by exploiting the exposed Nordic UART Service which enforces no client authentication or command authorization. Attackers within Bluetooth Low Energy range can connect directly to the ring, bypassing the official application and cloud authentication, to read battery levels, activate live heart rate monitoring, and retrieve stored historical heart rate and blood oxygen records.
Weakness: CWE-306
Which versions are affected by CVE-2026-89034?
How do I fix CVE-2026-89034?
No fix has been published for CVE-2026-89034 yet. Limit exposure of the affected software until one is available.
Upgrade, and rotate credentials and sessions that may have been exposed. More about Authentication bypass.
Is CVE-2026-89034 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-89034 exists.
Sources
Also known as GHSA-2xqr-38g6-4hhr.