CVE-2026-83534 PUBLISHED

PostgreSQL Anonymizer: Privilege escalation to superuser via anon.anonymize_database_parallel()

Assigner: PostgreSQL
Reserved: 31.08.2026 Published: 06.09.2026 Updated: 06.09.2026

PostgreSQL Anonymizer contains a vulnerability in the anon.anonymize_database_parallel() function that allows the owner of a table to run arbitrary code with superuser privilege. The issue is fixed in PostgreSQL Anonymizer 3.2.0 and later versions

Metrics

CVSS 3.1

CVSS Vector: CVSS:3.1/AV:N/AC:H/PR:H/UI:R/S:U/C:H/I:H/A:H
CVSS Score: 6.4

Attack Vector	Network	Scope	Unchanged
Attack Complexity	High	Confidentiality Impact	High
Privileges Required	High	Integrity Impact	High
User Interaction	Required	Availability Impact	High

CVSS 3.1

Product Status

Vendor	DALIBO
Product	PostgreSQL Anonymizer
Versions	Default: unaffected affected from 1 to 3.2.0 (excl.)

Workarounds

Set anon.static_masking to FALSE to disable the feature

Credits

The PostgreSQL Anonymizer project thanks Alexander Kukushkin for reporting this problem.

References

https://gitlab.com/dalibo/postgresql_anonymizer/-/issues/666

Problem Types

Execution with Unnecessary Privileges CWE