CVE-2026-16503 VPS.org one-click Supabase template deployment instance contains multiple vulnerabilities
Attackers can access the database due to default credentials and exposed ports, requiring administrators to secure the deployment configuration.
- 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-2026-16503?
CVE-2026-16503 is a critical vulnerability in VPS.org Supabase template, published on 31 Jul 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
Deployment of the VPS.org one-click Supabase template deploys a PostgreSQL instance that is published on all interfaces (0.0.0.0:5432) with a default database password set to "postgres". Because Docker installs its own iptables rules, this exposure bypasses a standard host UFW configuration.
Which versions are affected by CVE-2026-16503?
How do I fix CVE-2026-16503?
No fix has been published for CVE-2026-16503 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-16503 being exploited?
There is no known exploitation of CVE-2026-16503 in the wild and no public exploit code.
Sources
Also known as GHSA-j3fc-fx73-7qv7.