CVE-2026-9617

Summary

PostgreSQL Anonymizer contains a vulnerability that allows a user to gain superuser privileges by creating a table and placing malicious code inside a column identifier. If a superuser calls the k-anonymity function, the malicious code is executed with superuser privileges. The risk is higher with PostgreSQL 14 or with instances upgraded from PostgreSQL 14 or a prior version. With PostgreSQL 15 and later, the creation permission on the public schema is revoked by default and this exploit can only be achieved by a user who was explicitly granted the CREATE TABLE privilege. The problem is resolved in PostgreSQL Anonymizer 3.1.0 and further versions

Affected Software

VendorProductVersion RangeStatus
DALIBOPostgreSQL Anonymizer1 < 3.1.0affected

Weaknesses

  • CWE-89: Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection')

Workarounds

Remove the k_anonymity feature with 'DROP FUNCTION anon.k_anonymity();'. This is a user-facing function with no internal dependencies.

ADP Enrichment

CISA ADP Vulnrichment

  • SSVC:
  • Exploitation: none
    • Automatable: no
    • Technical Impact: total

References