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CVE-2026-6473

PostgreSQL server undersizes allocations, via integer wraparound

Published: May 14, 2026Updated: Aug 3, 2026 Sources: CVE List NVD BDUCWE-190
8.8HIGH
NVD MITRE
EPSS Score
1.0%
Top 40.3%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available
Self-Check
OpenVAS

Description

Integer wraparound in multiple PostgreSQL server features allows an unprivileged database user to cause the server to undersize an allocation and write out-of-bounds. This may execute arbitrary code as the operating system user running the database. In applications that pass gigabyte-scale user inputs to the relevant database functions, the application input provider may achieve a segmentation fault. Versions before PostgreSQL 18.4, 17.10, 16.14, 15.18, and 14.23 are affected.

No summary for this CVE yet.

CVSS Vector Breakdown

AV:NAC:LPR:LUI:NS:UC:HI:HA:H
Exploitability
AV:NAttack Vector
Network
AC:LAttack Complexity
Low
PR:LPrivileges Required
Low
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:HConfidentiality
High
I:HIntegrity
High
A:HAvailability
High
Open in CVSS calculator →

Weaknesses

CWE-190

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
Сообщество свободного программного обеспечения
oss-projectaka fsf
Debian GNU/LinuxOn-premOS
Operating Systems / linux-distro
АО «ИВК»
commercial·RUaka ivk
АЛЬТ СП 10On-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
Is your org exposed to CVE-2026-6473?We can run the check for you — a free external exposure review, no install. Check my exposure

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-2026-6473/
postgresql.org
https://www.postgresql.org/support/security/CVE-2026-6473/
postgresql.org
https://postgrespro.ru/products/postgrespro/certified
postgrespro.ru
and 45 more references View all →

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