PostgreSQL Anonymizer: statistics can expose some of the original data after statistic masking

MITRE NVD CVE.ORG JSON API

Summary

CVECVE-2026-110183
StatePUBLISHED
AssignerPostgreSQL
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-10-28 18:17:05 UTC
Updated2026-10-28 18:17:05 UTC
DescriptionPostgreSQL Anonymizer contains a vulnerability related to static masking and statistics persistence. Statistics pertaining to the original data remain visible in pg_stats until an ANALYZE operation is performed on the table, either manually or by autovacuum. This issue is fixed in PostgreSQL Anonymizer 3.3.0 and later versions.

Risk And Classification

Primary CVSS: v3.1 4.3 MEDIUM from f86ef6dc-4d3a-42ad-8f28-e6d5547a5007

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N

Problem Types: CWE-202 | CWE-202 Exposure of Sensitive Information Through Data Queries

VersionSourceTypeScoreSeverityVector
3.1f86ef6dc-4d3a-42ad-8f28-e6d5547a5007Secondary4.3MEDIUMCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
3.1CNACVSS4.3MEDIUMCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N

CVSS v3.1 Breakdown

Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
Low
Integrity
None
Availability
None

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA DALIBO PostgreSQL Anonymizer affected 1 3.3.0 semver Not specified

References

ReferenceSourceLinkTags
gitlab.com/dalibo/postgresql_anonymizer/-/issues/722 f86ef6dc-4d3a-42ad-8f28-e6d5547a5007 gitlab.com
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

Vendor Comments And Credit

Discovery Credit

CNA: The PostgreSQL Anonymizer project thanks user Ilya Staroverov for reporting this problem. (en)

Additional Advisory Data

Workarounds

CNA: Run the ANALYZE command after static masking.

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