CVE-2026-26742 Security feature bypass in n/a

High 8.1 Published 10 Mar 2026 Updated 11 Mar 2026

Attackers can bypass pre-flight safety checks in PX4 Autopilot by re-arming immediately after landing, causing uncontrolled high-thrust takeoffs.

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-2026-26742?

CVE-2026-26742 is a high-severity vulnerability in n/a, published on 10 Mar 2026. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

PX4 Autopilot versions 1.12.x through 1.15.x contain a protection mechanism failure in the "Re-arm Grace Period" logic. The system incorrectly applies the in-air emergency re-arm logic to ground scenarios. If a pilot switches to Manual mode and re-arms within 5 seconds (default configuration) of an automatic landing, the system bypasses all pre-flight safety checks, including the throttle threshold check. This allows for an immediate high-thrust takeoff if the throttle stick is raised, leading to loss of control.

Weakness: CWE-862

Which versions are affected by CVE-2026-26742?

It affects 1 product.

Products include Dronecode Px4 Drone Autopilot.

How do I fix CVE-2026-26742?

No fix has been published for CVE-2026-26742 yet. Limit exposure of the affected software until one is available.

Is CVE-2026-26742 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-26742 exists.

Sources

Also known as GHSA-r53q-gcfw-q36c.