CVE-2026-19633 PostgreSQL Anonymizer: unprivileged masked users can execute code via operators, domain casts and view subqueries
Unprivileged users can execute arbitrary code with elevated privileges via malicious operators, casts, or subqueries in PostgreSQL Anonymizer.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-19633?
CVE-2026-19633 is a high-severity code injection vulnerability in DALIBO PostgreSQL Anonymizer, published on 6 Sep 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
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
Weakness: CWE-89
Which versions are affected by CVE-2026-19633?
How do I fix CVE-2026-19633?
No fix has been published for CVE-2026-19633 yet. Limit exposure of the affected software until one is available.
Upgrade, and never evaluate templates, expressions or code built from user input. More about Code injection.
Is CVE-2026-19633 being exploited?
There is no known exploitation of CVE-2026-19633 in the wild and no public exploit code.
Sources
Also known as GHSA-m3j4-9g8h-24qh.