VDB-385082 · CVE-2026-16503 · GCVE-0-2026-16503

VPS.org Supabase template binding to an unrestricted ip address

CVSS Meta Temp Score CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.	Current Exploit Price (≈) Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.	CTI Interest Score Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
10.0	$0-$5k	1.06+

Summaryinfo

A vulnerability described as very critical has been identified in VPS.org Supabase template. Impacted is an unknown function. Such manipulation leads to binding to an unrestricted ip address. This vulnerability is uniquely identified as CVE-2026-16503. The attack can be launched remotely. No exploit exists.

Detailsinfo

A vulnerability was found in VPS.org Supabase template (unknown version). It has been rated as very critical. Affected by this issue is an unknown code block. The manipulation with an unknown input leads to a binding to an unrestricted ip address vulnerability. Using CWE to declare the problem leads to CWE-1327. The product assigns the address 0.0.0.0 for a database server, a cloud service/instance, or any computing resource that communicates remotely. Impacted is confidentiality, integrity, and availability. CVE summarizes:

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.

The advisory is available at kb.cert.org. This vulnerability is handled as CVE-2026-16503 since 07/21/2026. The exploitation is known to be easy. The attack may be launched remotely. No form of authentication is required for exploitation. The technical details are unknown and an exploit is not available. The structure of the vulnerability defines a possible price range of USD $0-$5k at the moment (estimation calculated on 07/31/2026).

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

If you want to get best quality of vulnerability data, you may have to visit VulDB.

Productinfo

Vendor

VPS.org

Name

Supabase template

CPE 2.3info

🔒

CPE 2.2info

🔒

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 10.0
VulDB Meta Temp Score: 10.0

VulDB Base Score: 10.0
VulDB Temp Score: 10.0
VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv2info

AV	AC	Au	C	I	A
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳

Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock

VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Binding to an unrestricted ip address
CWE: CWE-1327 / CWE-284 / CWE-266
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Yes

Availability: 🔒
Status: Not defined
Price Prediction: 🔍
Current Price Estimation: 🔒

0-Day	Unlock	Unlock	Unlock	Unlock
Today	Unlock	Unlock	Unlock	Unlock

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔒

Timelineinfo

07/21/2026 CVE reserved
07/31/2026 +10 days Advisory disclosed
07/31/2026 +0 days VulDB entry created
07/31/2026 +0 days VulDB entry last update

Sourcesinfo

Advisory: kb.cert.org
Status: Not defined

CVE: CVE-2026-16503 (🔒)
GCVE (CVE): GCVE-0-2026-16503
GCVE (VulDB): GCVE-100-385082

Entryinfo

Created: 07/31/2026 17:55
Changes: 07/31/2026 17:55 (50)
Complete: 🔍
Cache ID: 216::103