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CVE-2026-11945 DALIBO CVE debrief

A vulnerability in PostgreSQL Anonymizer allows a user to gain superuser privileges. By creating a JSON document and placing malicious code inside a particular key-value pair, an attacker can exploit this issue. If a superuser calls the import_database_rules() or import_roles_rules() functions, the malicious code is executed with superuser privileges. This vulnerability has a CVSS score of 6.4 and is classified as MEDIUM severity.

Vendor
DALIBO
Product
PostgreSQL Anonymizer
CVSS
MEDIUM 6.4
CISA KEV
Not listed in stored evidence
Original CVE published
2026-06-11
Original CVE updated
2026-06-16
Advisory published
2026-06-11
Advisory updated
2026-06-16

Who should care

Users of PostgreSQL Anonymizer versions prior to 3.1.1 should update to the latest version to mitigate this vulnerability.

Technical summary

The vulnerability is caused by inadequate sanitization of user-supplied JSON input. An attacker can create a JSON document with malicious code and place it in a specific key-value pair. When a superuser calls certain functions, such as import_database_rules() or import_roles_rules(), the malicious code is executed with superuser privileges.

Defensive priority

MEDIUM

Recommended defensive actions

  • Update PostgreSQL Anonymizer to version 3.1.1 or later.
  • Restrict access to the import_database_rules() and import_roles_rules() functions to prevent exploitation.

Evidence notes

This vulnerability is resolved in PostgreSQL Anonymizer 3.1.1 and later versions.

Sources and references

Verified primary and authoritative sources

  • CVE-2026-11945 CVE Program record

    Publisher, destination, and source semantics verified

    URL: https://www.cve.org/CVERecord?id=CVE-2026-11945

    CVE Program - Official CVE Program record with source-provided CVE metadata.

  • CVE-2026-11945 NVD vulnerability detail

    Publisher, destination, and source semantics verified

    URL: https://nvd.nist.gov/vuln/detail/CVE-2026-11945

    NIST National Vulnerability Database - Official NIST NVD detail page and source-specific vulnerability assessment.

Supplemental references

  • Source reference

    Unverified legacy reference

    URL: https://gitlab.com/dalibo/postgresql_anonymizer/-/issues/643

    f86ef6dc-4d3a-42ad-8f28-e6d5547a5007

Methodology and review provenance

AI-assisted synthesis based on stored public vulnerability evidence. System validation, approval state, and publication status do not by themselves establish human review of this revision. PatchSiren helps prioritize defensive review and does not prove exposure or remediation on any system.