CVE-2026-19633: PostgreSQL Anonymizer: unprivileged masked users can execute code via operators, domain casts and view subqueries
PostgreSQL Anonymizer contains a vulnerability that allows unprivileged masked users to execute arbitrary code by abusing operators, domain casts, or view subqueries that carry untrusted expressions. When these objects are evaluated in the context of the extension’s masking mechanisms, the malicious code can run with elevated privileges. The issue is fixed in PostgreSQL Anonymizer 3.1.4 and later versions
Affected Software
Remediation
Recommended actions to resolve this vulnerability, in priority order.
- Upgrade
Upgrade
PostgreSQL Anonymizerto a version that resolves this vulnerability.Fixed in 3.1.4
Event History
Frequently Asked Questions
Who is exposed to this vulnerability?
Deployments of PostgreSQL Anonymizer before version 3.1.4 are exposed when unprivileged masked users can supply or cause evaluation of untrusted expressions through operators, domain casts, or view subqueries.
What level of access does an attacker need?
An attacker needs low-level privileges as an unprivileged masked user. No user interaction is required, and exploitation can be performed over the network.
What is the impact of successful exploitation?
A successful attacker can execute arbitrary code with elevated privileges in the context of the extension's masking mechanisms. The stated impact includes high confidentiality, integrity, and availability impact.
What remediation is available?
Upgrade PostgreSQL Anonymizer to version 3.1.4 or a later version, which contains the fix.