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    CVE-2023-39418

    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.

    Published:Aug 10, 2023
    Last Modified:Nov 21, 2025
    EPS:Aug 11, 2023
    EPSS Score:0.01354
    CVSS Score:3.1

    Affected Products

    Vendor
    Debian
    Product
    Debian Linux
    Vendor
    Postgresql
    Product
    Postgresql
    Vendor
    Redhat
    Product
    Enterprise Linux
    Vendor
    Redhat
    Product
    Rhel Eus
    Vendor
    Redhat
    Product
    Rhel Software Collections

    Exploits

    No exploit reference

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    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/
    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://security.netapp.com/advisory/ntap-20230915-0002/
    https://www.debian.org/security/2023/dsa-5553
    https://www.postgresql.org/support/security/CVE-2023-39418/

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High