CVE-2026-105613: PostgreSQL Anonymizer unconstrained range-based dummy function memory exhaustion

CVE-2026-105613 · Severity: medium · CVSS 4.7 · Published 2026-10-28

PostgreSQL Anonymizer is an extension that masks sensitive data in PostgreSQL databases. A flaw in its range-based dummy data generation functions fails to limit the size of generated ranges, allowing an attacker to consume all available memory on a database server and trigger an out-of-memory crash. This can render an entire PostgreSQL cluster unavailable and force time-consuming recovery.

Technologies: Dalibo PostgreSQL Anonymizer. Vendors: Dalibo.

Quick answers

Is CVE-2026-105613 exploited in the wild?
No. Junglewise Threat Intelligence has no report of CVE-2026-105613 being exploited in the wild.
How severe is CVE-2026-105613?
Medium severity, with a CVSS score of 4.7, published 28 October 2026.
Which products and versions are affected?
Dalibo PostgreSQL Anonymizer before 3.3.0.
Is there a fix for CVE-2026-105613?
Yes: fixed in PostgreSQL Anonymizer 3.3.0 and later. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
How is CVE-2026-105613 attacked?
It is attacked over the network, in a software library.
Am I affected by CVE-2026-105613?
Check whether you run Dalibo PostgreSQL Anonymizer at an affected version. 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.

How to fix

  • Fixed in: PostgreSQL Anonymizer 3.3.0 and later

Technical details

PostgreSQL Anonymizer's range-based dummy functions do not properly constrain the size of generated ranges, allowing unbounded memory allocation. An authenticated attacker can exploit this to exhaust backend memory and trigger OOM-kill, causing cluster-wide crash recovery. The vulnerability is fixed in version 3.3.0 and later.

Affected products

  • Dalibo PostgreSQL Anonymizer before 3.3.0

Timeline

  • 2026-10-28: disclosed

References

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