CVE-2026-7042 666ghj MiroFish REST API Endpoint __init__.py create_app missing authentication

Medium 6.9 Published Updated

Attackers can bypass authentication on the MiroFish REST API endpoint to access protected resources without credentials.

Exploited in the wild
Not known
Login needed
Not needed
Attackable
Over the internet
Victim action needed
Not needed
Fix
None listed

What is CVE-2026-7042?

CVE-2026-7042 is a medium-severity missing authorization vulnerability in 666ghj MiroFish, published on 26 Apr 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

A flaw has been found in 666ghj MiroFish up to 0.1.2. This affects the function create_app of the file backend/app/__init__.py of the component REST API Endpoint. Executing a manipulation can lead to missing authentication. It is possible to launch the attack remotely. The exploit has been published and may be used. The project was informed of the problem early through an issue report but has not responded yet.

Weakness: CWE-306, CWE-287

Which versions are affected by CVE-2026-7042?

How do I fix CVE-2026-7042?

No fix has been published for CVE-2026-7042 yet. Limit exposure of the affected software until one is available.

Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.

Is CVE-2026-7042 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-7042 exists.

Sources

Also known as GHSA-wr9f-cr47-6784.

Is CVE-2026-7042 in your software?

Upload an SBOM and sbomify checks it against every vulnerability here, every day.

Check your SBOMs for free