Unrated severityNVD Advisory· Published Aug 11, 2023· Updated Nov 21, 2025
Postgresql: merge fails to enforce update or select row security policies
CVE-2023-39418
Description
A vulnerability was found in PostgreSQL with the use of the MERGE command, which fails to test new rows against row security policies defined for UPDATE and SELECT. If UPDATE and SELECT policies forbid some rows that INSERT policies do not forbid, a user could store such rows.
Affected products
41- Red Hat/Red Hat Enterprise Linux 8v52 versions
cpe:/a:redhat:enterprise_linux:8::appstream+ 1 more
- cpe:/a:redhat:enterprise_linux:8::appstreamrange: 8090020231114113548.a75119d5
- cpe:/o:redhat:enterprise_linux:8
- Red Hat/Red Hat Enterprise Linux 9v52 versions
cpe:/a:redhat:enterprise_linux:9::appstream+ 1 more
- cpe:/a:redhat:enterprise_linux:9::appstreamrange: 9030020231120082734.rhel9
- cpe:/o:redhat:enterprise_linux:9
- Red Hat/Red Hat Enterprise Linux 8.8 Extended Update Supportv5cpe:/a:redhat:rhel_eus:8.8::appstreamRange: 8080020231113134015.63b34585
- Red Hat/Red Hat Enterprise Linux 9.2 Extended Update Supportv5cpe:/a:redhat:rhel_eus:9.2::appstreamRange: 9020020231115020618.rhel9
- Red Hat/Red Hat Software Collectionsv5cpe:/a:redhat:rhel_software_collections:3
- Red Hat/Red Hat Enterprise Linux 6v5cpe:/o:redhat:enterprise_linux:6
- Red Hat/Red Hat Enterprise Linux 7v5cpe:/o:redhat:enterprise_linux:7
- osv-coords32 versionspkg:bitnami/postgresqlpkg:rpm/almalinux/pgauditpkg:rpm/almalinux/pg_repackpkg:rpm/almalinux/postgres-decoderbufspkg:rpm/almalinux/postgresqlpkg:rpm/almalinux/postgresql-contribpkg:rpm/almalinux/postgresql-docspkg:rpm/almalinux/postgresql-plperlpkg:rpm/almalinux/postgresql-plpython3pkg:rpm/almalinux/postgresql-pltclpkg:rpm/almalinux/postgresql-private-develpkg:rpm/almalinux/postgresql-private-libspkg:rpm/almalinux/postgresql-serverpkg:rpm/almalinux/postgresql-server-develpkg:rpm/almalinux/postgresql-staticpkg:rpm/almalinux/postgresql-testpkg:rpm/almalinux/postgresql-test-rpm-macrospkg:rpm/almalinux/postgresql-upgradepkg:rpm/almalinux/postgresql-upgrade-develpkg:rpm/opensuse/postgresql15&distro=openSUSE%20Leap%2015.4pkg:rpm/opensuse/postgresql15&distro=openSUSE%20Leap%2015.5pkg:rpm/opensuse/postgresql15&distro=openSUSE%20Tumbleweedpkg:rpm/suse/postgresql15&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Basesystem%2015%20SP4pkg:rpm/suse/postgresql15&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Basesystem%2015%20SP5pkg:rpm/suse/postgresql15&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Package%20Hub%2015%20SP4pkg:rpm/suse/postgresql15&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Server%20Applications%2015%20SP4pkg:rpm/suse/postgresql15&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Server%20Applications%2015%20SP5pkg:rpm/suse/postgresql15&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP5pkg:rpm/suse/postgresql15&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2012%20SP5pkg:rpm/suse/postgresql15&distro=SUSE%20Linux%20Enterprise%20Software%20Development%20Kit%2012%20SP5pkg:rpm/suse/postgresql15&distro=SUSE%20Manager%20Proxy%204.2pkg:rpm/suse/postgresql15&distro=SUSE%20Manager%20Server%204.2
>= 15.0.0, < 15.4.0+ 31 more
- (no CPE)range: >= 15.0.0, < 15.4.0
- (no CPE)range: < 1.7.0-1.module_el9.2.0+22+09653793
- (no CPE)range: < 1.4.8-1.module_el9.2.0+22+09653793
- (no CPE)range: < 1.9.7-1.Final.module_el9.2.0+22+09653793
- (no CPE)range: < 15.5-1.module_el9.3.0+52+21733919
- (no CPE)range: < 15.5-1.module_el9.3.0+52+21733919
- (no CPE)range: < 15.5-1.module_el9.3.0+52+21733919
- (no CPE)range: < 15.5-1.module_el9.3.0+52+21733919
- (no CPE)range: < 15.5-1.module_el9.3.0+52+21733919
- (no CPE)range: < 15.5-1.module_el9.3.0+52+21733919
- (no CPE)range: < 15.5-1.module_el9.3.0+52+21733919
- (no CPE)range: < 15.5-1.module_el9.3.0+52+21733919
- (no CPE)range: < 15.5-1.module_el9.3.0+52+21733919
- (no CPE)range: < 15.5-1.module_el9.3.0+52+21733919
- (no CPE)range: < 15.5-1.module_el9.3.0+52+21733919
- (no CPE)range: < 15.5-1.module_el9.3.0+52+21733919
- (no CPE)range: < 15.5-1.module_el9.3.0+52+21733919
- (no CPE)range: < 15.5-1.module_el9.3.0+52+21733919
- (no CPE)range: < 15.5-1.module_el9.3.0+52+21733919
- (no CPE)range: < 15.4-150200.5.12.1
- (no CPE)range: < 15.4-150200.5.12.1
- (no CPE)range: < 15.4-1.1
- (no CPE)range: < 15.4-150200.5.12.1
- (no CPE)range: < 15.4-150200.5.12.1
- (no CPE)range: < 15.4-150200.5.12.1
- (no CPE)range: < 15.4-150200.5.12.1
- (no CPE)range: < 15.4-150200.5.12.1
- (no CPE)range: < 15.4-3.12.1
- (no CPE)range: < 15.4-3.12.1
- (no CPE)range: < 15.4-3.12.1
- (no CPE)range: < 15.4-150200.5.12.1
- (no CPE)range: < 15.4-150200.5.12.1
Patches
0No patches discovered yet.
Vulnerability mechanics
AI mechanics synthesis has not run for this CVE yet.
References
8- access.redhat.com/errata/RHSA-2023:7785mitrevendor-advisoryx_refsource_REDHAT
- access.redhat.com/errata/RHSA-2023:7883mitrevendor-advisoryx_refsource_REDHAT
- access.redhat.com/errata/RHSA-2023:7884mitrevendor-advisoryx_refsource_REDHAT
- access.redhat.com/errata/RHSA-2023:7885mitrevendor-advisoryx_refsource_REDHAT
- access.redhat.com/security/cve/CVE-2023-39418mitrevdb-entryx_refsource_REDHAT
- bugzilla.redhat.com/show_bug.cgimitreissue-trackingx_refsource_REDHAT
- git.postgresql.org/gitweb/mitre
- www.postgresql.org/support/security/CVE-2023-39418/mitre
News mentions
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