PostgreSQL Anonymizer: Unbounded image-decode memory allocation (DoS) in anon.image_blur()

MITRE NVD CVE.ORG JSON API

Summary

CVECVE-2026-105614
StatePUBLISHED
AssignerPostgreSQL
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-10-28 18:17:03 UTC
Updated2026-10-28 18:17:03 UTC
DescriptionPostgreSQL Anonymizer's `anon.image_blur()` function doesn't check the declared dimension of the provided image, allowing an attacker to provide a small image with enormous declared dimensions. This vulnerability can be exploited to exhaust the memory of a backend and OOM-kill it (when ovecommit is on), which results in a cluster-wide crash recovery. The problem is resolved in PostgreSQL Anonymizer 3.3.0 and later versions.

Risk And Classification

Primary CVSS: v3.1 4.7 MEDIUM from f86ef6dc-4d3a-42ad-8f28-e6d5547a5007

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

Problem Types: CWE-789 | CWE-789 Memory Allocation with Excessive Size Value

VersionSourceTypeScoreSeverityVector
3.1f86ef6dc-4d3a-42ad-8f28-e6d5547a5007Secondary4.7MEDIUMCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:N/I:N/A:L
3.1CNACVSS4.7MEDIUMCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:N/I:N/A:L

CVSS v3.1 Breakdown

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

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

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/691 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 Alexander Kukushkin for reporting this problem. (en)

Additional Advisory Data

Workarounds

CNA: Revoke execution rights on the range-based dummy functions or drop them.

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