CVE-2026-17348: pgAdmin 4 missing authentication in multiple server-mode routes

CVE-2026-17348 · Severity: medium · CVSS 6.5 · Published 2026-07-31

pgAdmin 4 is a popular management tool for PostgreSQL databases. In certain configurations, several internal functions were accidentally left accessible to anyone on the network without requiring a password. An unauthorized person could use this to delete database table constraints, view system preferences, or disrupt active debugging sessions, potentially leading to data loss or operational disruption.

Quick answers

Is CVE-2026-17348 exploited in the wild?
No. Junglewise Threat Intelligence has no report of CVE-2026-17348 being exploited in the wild.
How severe is CVE-2026-17348?
Medium severity, with a CVSS score of 6.5, published 31 July 2026.
Which products and versions are affected?
pgadmin.org pgAdmin 4 < 9.17.
Is there a fix for CVE-2026-17348?
No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.
How is CVE-2026-17348 attacked?
It is attacked over the network, in a network appliance.
Am I affected by CVE-2026-17348?
Check whether anything you run is named in the advisory. 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.

Technical details

A missing authentication check (CWE-306) exists in pgAdmin 4 when running in SERVER mode. The application relies on the '@pga_login_required' decorator to enforce authentication on a per-route basis, but several routes were identified as missing this decorator. Specifically, the Constraints blueprint (nodes, proplist, and delete routes), preferences.get_all_cli, debugger.close, and schema_diff.close are affected. An unauthenticated network attacker can exploit these endpoints to enumerate metadata, delete table constraints via state-mutating DELETE requests, or terminate sessions belonging to other users. This issue was addressed in version 9.17 by applying the missing decorators.

Affected products

  • pgadmin.org pgAdmin 4 < 9.17

Timeline

  • 2026-07-31: advisory: CVE-2026-17348 published
  • 2026-07-31: disclosed

References

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