pgAdmin 4 Issues Critical Security Update Addressing Seven Vulnerabilities Including Prior Patch Failures
The development team behind the widely used database management tool pgAdmin 4 has published a security update that resolves multiple vulnerabilities, including incomplete fixes from the prior release.
On 30 July 2026 the team released version 9.17, which addresses a total of seven vulnerabilities. This includes three issues that were supposed to have been fixed in version 9.16 but remained unresolved, plus two newly identified flaws. Three of the vulnerabilities carry the highest severity rating of Critical.
One newly discovered Critical vulnerability, tracked as CVE-2026-17566, resides in the query-based data export functionality. Insufficient validation of SQL input allows an attacker to perform OS command injection, potentially executing arbitrary commands on the underlying operating system.
A second Critical issue, CVE-2026-17349, affects the server duplication feature. When a shared server is copied, the operation can inadvertently transfer stored database credentials that belong to other users, leading to unauthorized access.
The update also corrects an incomplete remediation of CVE-2026-12045. Because of differences in how the SQL parsing library and PostgreSQL interpret string literals, the read-only restrictions of the AI Assistant can be bypassed, resulting in the new Critical vulnerability CVE-2026-17351.
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