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CVE-2026-6638

PostgreSQL REFRESH PUBLICATION allows SQL injection via table name

Published: May 14, 2026Updated: May 18, 2026 Sources: CVE List NVD BDUCWE-89
3.7LOW
NVD MITRE
EPSS Score
0.2%
Top 92.2%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available
Self-Check
OpenVAS

Description

SQL injection in PostgreSQL logical replication ALTER SUBSCRIPTION ... REFRESH PUBLICATION allows a subscriber table creator to execute arbitrary SQL with the subscription's publication-side credentials. The attack takes effect at the next REFRESH PUBLICATION. Within major versions 16, 17, and 18, minor versions before PostgreSQL 18.4, 17.10, and 16.14 are affected. Versions before PostgreSQL 16 are unaffected.

No summary for this CVE yet.

CVSS Vector Breakdown

AV:NAC:HPR:LUI:RS:UC:LI:LA:N
Exploitability
AV:NAttack Vector
Network
AC:HAttack Complexity
High
PR:LPrivileges Required
Low
UI:RUser Interaction
Required
Scope
S:UScope
Unchanged
Impact
C:LConfidentiality
Low
I:LIntegrity
Low
A:NAvailability
None
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Weaknesses

CWE-89

Affected Products

Novell Inc.
commercial·US
SUSE Linux Enterprise Server for SAP ApplicationsOn-premOS
Operating Systems / linux-distro
Suse Linux Enterprise DesktopOn-premOS
Operating Systems / linux-distro
SUSE Manager ProxyOn-prem
Operating Systems / linux-distro
АО «ИВК»
commercial·RUaka ivk
АЛЬТ СП 10On-premOS
Operating Systems / linux-distro
Сообщество свободного программного обеспечения
oss-projectaka fsf
Debian GNU/LinuxOn-premOS
Operating Systems / linux-distro
Postgres Professional
commercialaka postgres pro enterprise, postgres pro certified
Postgres Pro CertifiedOn-premDatabase
Databases / relational
PostgreSQL Global Development Group
oss-project·USaka postgresql
PostgreSQLOn-premDatabase
Databases / relational
ООО «Тантор Лабс»
commercial·RU
СУБД «Tantor»
and 3 more affected products View all →

Exploitability

Official Patch Available
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Attack Graph

Products CVE Techniques Tactics

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MITRE ATT&CK

1 technique
Initial Access
View detailed technique mapping

References

https://www.postgresql.org/support/security/CVE-2026-6638/
postgresql.org
https://www.postgresql.org/about/news/postgresql-184-1710-1614-1518-and-1423-released-3297/
postgresql.org
https://security-tracker.debian.org/tracker/CVE-2026-6638
security-tracker.debian.org
and 4 more references View all →

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