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RLSA-2026:26204

RLSA-2026:26204 · Important: postgresql:18 security update

This page contains facts from public vulnerability sources. Check the original advisory before updating.

PostgreSQL is an advanced object-relational database management system (DBMS). Security Fix(es): * postgresql: PostgreSQL: Operating system account hijack via symlink following in pg_basebackup and pg_rewind (CVE-2026-6475) * postgresql: PostgreSQL libpq: Buffer overflow allows server superuser to overwrite client stack memory (CVE-2026-6477) * postgresql: PostgreSQL: Credential recovery via covert timing channel in MD5 password comparison (CVE-2026-6478) * postgresql: integer overflow can cause an undersized allocation and an out-of-bounds write (CVE-2026-6473) For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

CVSS 8.8 · High · Fix available

Published
Updated

Stack: system

Affected products and versions

  • pgaudit Rocky Linux:9

    Affected ranges
    • ECOSYSTEM: < 0:18.0-1.module+el9.8.0+40158+490b3c67

    Update to 0:18.0-1.module+el9.8.0+40158+490b3c67

  • pg_repack Rocky Linux:9

    Affected ranges
    • ECOSYSTEM: < 0:1.5.3-1.module+el9.8.0+40158+490b3c67

    Update to 0:1.5.3-1.module+el9.8.0+40158+490b3c67

  • pgvector Rocky Linux:9

    Affected ranges
    • ECOSYSTEM: < 0:0.8.1-1.module+el9.8.0+40158+490b3c67

    Update to 0:0.8.1-1.module+el9.8.0+40158+490b3c67

  • postgis Rocky Linux:9

    Affected ranges
    • ECOSYSTEM: < 0:3.6.1-2.module+el9.8.0+40158+490b3c67

    Update to 0:3.6.1-2.module+el9.8.0+40158+490b3c67

  • postgres-decoderbufs Rocky Linux:9

    Affected ranges
    • ECOSYSTEM: < 0:3.3.1-1.Final.module+el9.8.0+40158+490b3c67

    Update to 0:3.3.1-1.Final.module+el9.8.0+40158+490b3c67

Original sources

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