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    CVE-2026-6471

    Missing authorization in PostgreSQL logical decoding allows a non-superuser holding REPLICATION privilege to dlopen any file visible to the operating system account running the server, via the choice of logical decoding plugin. This in turn runs arbitrary code as that account. Versions before PostgreSQL 18.6, 17.11, 16.15, 15.19, and 14.24 are affected.

    Published:Aug 13, 2026
    Last Modified:Aug 29, 2026
    EPS:Aug 13, 2026
    EPSS Score:0.00285
    CVSS Score:7.2

    Affected Products

    Vendor
    Postgresql
    Product
    Postgresql

    Exploits

    https://github.com/0xBlackash/CVE-2026-6471https://github.com/goldendivider/cve-2026-6471-postgres-logical-decoding-dlopenhttps://github.com/HORKimhab/CVE-2026-6471

    Common Weakness Enumeration

    CWE-862 Missing Authorization

    Common Attack Pattern Enumeration and Classification (CAPEC)

    CAPEC-665 Exploitation of Thunderbolt Protection Flaws

    Related CVEs

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    CVE-2026-6469 (CVSS 3.8) — Incorrect ownership assignment in PostgreSQL ALTER TABLE ALTER TYPE command reassigns ownership of dependent s…
    CVE-2026-6464 (CVSS 8.1) — Untrusted data inclusion in PostgreSQL psql COPY may allow a server administrator to elicit execution of data …
    CVE-2026-19385 (CVSS 8.8) — Heap buffer overflow in PostgreSQL pg_dump of long function transform lists allows an object creator to execut…
    CVE-2026-18408 (CVSS 8.8) — Untrusted data inclusion in pg_dump in PostgreSQL allows a malicious superuser of the origin server to inject …
    CVE-2026-18024 (CVSS 4.3) — Buffer over-read in PostgreSQL ascii() SQL function allows a user to disclose up to 3 bytes after the end of a…
    CVE-2026-16241 (CVSS 3.8) — Integer underflow in PostgreSQL ECPG allows a database server administrator to achieve temporary denial of ser…
    CVE-2026-16239 (CVSS 8.8) — Type confusion in PostgreSQL "portal"/cursor lifecycle allows a user to execute arbitrary code as the operatin…
    CVE-2026-16238 (CVSS 8.8) — Type confusion in PostgreSQL pg_restore_attribute_stats() allows an object creator to execute arbitrary code a…

    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