pgAdmin 4 EUVD-2026-29084

Upgrade to pgAdmin 4 version 9.15 or later immediately, which implements comprehensive input validation including parens-balance parsing, field allow-listing, null-byte rejection, and enhanced type/authorization checks per the fix description. Download the patched release from pgadmin.org official channels and follow standard pgAdmin upgrade procedures for your deployment method (standalone, Docker, or package manager). If immediate patching is infeasible, implement the following compensating controls with noted limitations: (1) Restrict pgAdmin access to trusted users only via application-layer authentication/authorization and network segmentation (firewall rules limiting access to admin jump hosts or VPN-only), understanding this reduces but does not eliminate insider threat risk. (2) Disable or restrict the Import/Export feature entirely via pgAdmin configuration or role-based permissions if your operational workflow permits, noting this breaks legitimate data export functionality. (3) Deploy pgAdmin in an isolated container or VM with minimal privileges and no network/filesystem access to sensitive resources, using AppArmor/SELinux policies to restrict child process execution, though this adds operational complexity and may still allow container escape or data exfiltration. (4) Monitor pgAdmin server logs and system process execution (auditd, Sysmon) for unexpected psql child processes or anomalous TO PROGRAM/TO FILE patterns, accepting that skilled attackers may evade logging. All compensating controls are inferior to patching and should be considered temporary risk reduction only. Vendor advisory and patch details: https://github.com/pgadmin-org/pgadmin4/issues/9899.