PostgreSQL "vacuumdb --missing-stats-only" lets a database owner execute code as the vacuumdb user

MITRE NVD CVE.ORG JSON API

Summary

CVECVE-2026-116313
StatePUBLISHED
AssignerPostgreSQL
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-11-12 15:17:39 UTC
Updated2026-11-12 22:18:26 UTC
DescriptionUntrusted search path in PostgreSQL vacuumdb allows a database owner to execute arbitrary SQL as the database user running vacuumdb, via shadowing operators used in the --missing-stats-only catalog query. The pg_upgrade documentation recommends an affected vacuumdb invocation. Within major version 18, minor versions before PostgreSQL 18.7 are affected. Versions before PostgreSQL 18 are unaffected.

Risk And Classification

Primary CVSS: v3.1 7.2 HIGH from f86ef6dc-4d3a-42ad-8f28-e6d5547a5007

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

Problem Types: CWE-426 | CWE-426 Untrusted Search Path

VersionSourceTypeScoreSeverityVector
3.1f86ef6dc-4d3a-42ad-8f28-e6d5547a5007Secondary7.2HIGHCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
3.1CNACVSS7.2HIGHCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

CVSS v3.1 Breakdown

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

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

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Na PostgreSQL affected 18 18.7 rpm Not specified

References

ReferenceSourceLinkTags
www.postgresql.org/support/security/CVE-2026-116313 f86ef6dc-4d3a-42ad-8f28-e6d5547a5007 www.postgresql.org
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 project thanks Anthropic OSS program for reporting this problem. (en)

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