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Status published
Low
CVE-2023-39418
Postgresql: merge fails to enforce update or select row security policies
Vulnerability 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.
Impact Analysis
Refer to official advisory for detailed impact metrics.
Remediation
Ensure systems are updated to the latest vendor-supplied patch levels.
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Credits & Attribution
No credits recorded in the NVD database.
References
- https://access.redhat.com/errata/RHSA-2023:7785
- https://access.redhat.com/errata/RHSA-2023:7883
- https://access.redhat.com/errata/RHSA-2023:7884
- https://access.redhat.com/errata/RHSA-2023:7885
- https://access.redhat.com/security/cve/CVE-2023-39418
- https://bugzilla.redhat.com/show_bug.cgi?id=2228112
- https://git.postgresql.org/gitweb/?p=postgresql.git;a=commitdiff;h=cb2ae5741f2458a474ed3c31458d242e678ff229
- https://www.postgresql.org/support/security/CVE-2023-39418/
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Affected Vendor
Red Hat
View all reports →Affected Software
Red Hat Enterprise Linux 8, Red Hat Enterprise Linux 8.8 Extended Update Support, Red Hat Enterprise Linux 9, Red Hat Enterprise Linux 9.2 Extended Update Support, Red Hat Enterprise Linux 6, Red Hat Enterprise Linux 7, Red Hat Software Collections
Vulnerable Versions:
8090020231114113548.a75119d5, 8080020231113134015.63b34585, 9030020231120082734.rhel9, 9020020231115020618.rhel9
Timeline
Official Publish:
August 11th, 2023
Last Modified:
November 21st, 2025
Added to House:
July 22nd, 2026
CVSS Vectors
V3:
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:L/A:N
Weaknesses (CWE)
MITRE ATT&CK TTPs
No associated TTPs found for this vulnerability.