CVE-2026-116248: pgAdmin 4 unauthorized server sharing to all users

CVE-2026-116248 · Severity: medium · CVSS 6.8 · Published 2026-10-30

pgAdmin 4 is a management interface for PostgreSQL databases. A flaw in access controls allowed non-administrator users to share database server connections with all other users on the system, despite this being restricted to administrators. An attacker could plant a malicious server in other users' server lists to harvest their database credentials when they connect.

Technologies: Pgadmin 4. Vendors: pgAdmin.

Quick answers

Is CVE-2026-116248 exploited in the wild?
No. Junglewise Threat Intelligence has no report of CVE-2026-116248 being exploited in the wild.
How severe is CVE-2026-116248?
Medium severity, with a CVSS score of 6.8, published 30 October 2026.
Which products and versions are affected?
Pgadmin 4 before 9.19.
Is there a fix for CVE-2026-116248?
Yes: fixed in pgAdmin 4 9.19 and later. Until then: Restrict user registration to trusted administrators only, or disable the server sharing feature until upgraded to a patched version. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
How is CVE-2026-116248 attacked?
It is attacked over the network, in a web application.
Am I affected by CVE-2026-116248?
Check whether you run Pgadmin 4 at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

How to fix

  • Fixed in: pgAdmin 4 9.19 and later

Restrict user registration to trusted administrators only, or disable the server sharing feature until upgraded to a patched version.

Technical details

The vulnerability exists in pgAdmin 4's server API create and update endpoints, which failed to validate whether the requesting user was an administrator before processing a "shared" flag that makes a server visible to all users. Additionally, the servers.json import removed non-administrator shared entries only after validation, allowing a file with an invalid entry to bypass this check. An attacker with user registration capability could share a server with all users, directing them to an attacker-controlled host to intercept database credentials.

Affected products

  • pgAdmin pgAdmin 4 before 9.19

Timeline

  • 2026-10-30: disclosed

References

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