RHSA-2026:79027HighCVSS 8.4

Red Hat Security Advisory: postgresql:12 security update

Published
October 8, 2026
Last Modified
October 9, 2026

🔗 CVE IDs covered (1)

CVE-2026-18408 →

📋 Description

CVE-2026-18408 — postgresql: PostgreSQL: Arbitrary code execution via untrusted data inclusion in pg_dump

🎯 Affected products78

  • Red Hat Enterprise Linux AppStream AUS (v.8.6)
  • Red Hat Enterprise Linux AppStream EUS EXTENSION (v.8.6)
  • pg_repack-0:1.4.6-3.module+el8.5.0+11354+78b3c9c5.src (postgresql:12) as a component of Red Hat Enterprise Linux AppStream AUS (v.8.6)
  • pg_repack-0:1.4.6-3.module+el8.5.0+11354+78b3c9c5.src (postgresql:12) as a component of Red Hat Enterprise Linux AppStream EUS EXTENSION (v.8.6)
  • pg_repack-0:1.4.6-3.module+el8.5.0+11354+78b3c9c5.x86_64 (postgresql:12) as a component of Red Hat Enterprise Linux AppStream AUS (v.8.6)
  • pg_repack-0:1.4.6-3.module+el8.5.0+11354+78b3c9c5.x86_64 (postgresql:12) as a component of Red Hat Enterprise Linux AppStream EUS EXTENSION (v.8.6)
  • pg_repack-debuginfo-0:1.4.6-3.module+el8.5.0+11354+78b3c9c5.x86_64 (postgresql:12) as a component of Red Hat Enterprise Linux AppStream AUS (v.8.6)
  • pg_repack-debuginfo-0:1.4.6-3.module+el8.5.0+11354+78b3c9c5.x86_64 (postgresql:12) as a component of Red Hat Enterprise Linux AppStream EUS EXTENSION (v.8.6)
  • pg_repack-debugsource-0:1.4.6-3.module+el8.5.0+11354+78b3c9c5.x86_64 (postgresql:12) as a component of Red Hat Enterprise Linux AppStream AUS (v.8.6)
  • pg_repack-debugsource-0:1.4.6-3.module+el8.5.0+11354+78b3c9c5.x86_64 (postgresql:12) as a component of Red Hat Enterprise Linux AppStream EUS EXTENSION (v.8.6)
  • pgaudit-0:1.4.0-5.module+el8.5.0+11354+78b3c9c5.src (postgresql:12) as a component of Red Hat Enterprise Linux AppStream AUS (v.8.6)
  • pgaudit-0:1.4.0-5.module+el8.5.0+11354+78b3c9c5.src (postgresql:12) as a component of Red Hat Enterprise Linux AppStream EUS EXTENSION (v.8.6)
  • pgaudit-0:1.4.0-5.module+el8.5.0+11354+78b3c9c5.x86_64 (postgresql:12) as a component of Red Hat Enterprise Linux AppStream AUS (v.8.6)
  • pgaudit-0:1.4.0-5.module+el8.5.0+11354+78b3c9c5.x86_64 (postgresql:12) as a component of Red Hat Enterprise Linux AppStream EUS EXTENSION (v.8.6)
  • pgaudit-debuginfo-0:1.4.0-5.module+el8.5.0+11354+78b3c9c5.x86_64 (postgresql:12) as a component of Red Hat Enterprise Linux AppStream AUS (v.8.6)
  • pgaudit-debuginfo-0:1.4.0-5.module+el8.5.0+11354+78b3c9c5.x86_64 (postgresql:12) as a component of Red Hat Enterprise Linux AppStream EUS EXTENSION (v.8.6)
  • pgaudit-debugsource-0:1.4.0-5.module+el8.5.0+11354+78b3c9c5.x86_64 (postgresql:12) as a component of Red Hat Enterprise Linux AppStream AUS (v.8.6)
  • pgaudit-debugsource-0:1.4.0-5.module+el8.5.0+11354+78b3c9c5.x86_64 (postgresql:12) as a component of Red Hat Enterprise Linux AppStream EUS EXTENSION (v.8.6)
  • postgres-decoderbufs-0:0.10.0-2.module+el8.5.0+11354+78b3c9c5.src (postgresql:12) as a component of Red Hat Enterprise Linux AppStream AUS (v.8.6)
  • postgres-decoderbufs-0:0.10.0-2.module+el8.5.0+11354+78b3c9c5.src (postgresql:12) as a component of Red Hat Enterprise Linux AppStream EUS EXTENSION (v.8.6)
  • postgres-decoderbufs-0:0.10.0-2.module+el8.5.0+11354+78b3c9c5.x86_64 (postgresql:12) as a component of Red Hat Enterprise Linux AppStream AUS (v.8.6)
  • postgres-decoderbufs-0:0.10.0-2.module+el8.5.0+11354+78b3c9c5.x86_64 (postgresql:12) as a component of Red Hat Enterprise Linux AppStream EUS EXTENSION (v.8.6)
  • postgres-decoderbufs-debuginfo-0:0.10.0-2.module+el8.5.0+11354+78b3c9c5.x86_64 (postgresql:12) as a component of Red Hat Enterprise Linux AppStream AUS (v.8.6)
  • postgres-decoderbufs-debuginfo-0:0.10.0-2.module+el8.5.0+11354+78b3c9c5.x86_64 (postgresql:12) as a component of Red Hat Enterprise Linux AppStream EUS EXTENSION (v.8.6)
  • postgres-decoderbufs-debugsource-0:0.10.0-2.module+el8.5.0+11354+78b3c9c5.x86_64 (postgresql:12) as a component of Red Hat Enterprise Linux AppStream AUS (v.8.6)
  • postgres-decoderbufs-debugsource-0:0.10.0-2.module+el8.5.0+11354+78b3c9c5.x86_64 (postgresql:12) as a component of Red Hat Enterprise Linux AppStream EUS EXTENSION (v.8.6)
  • postgresql-0:12.22-1.module+el8.6.0+25015+eae30833.7.src (postgresql:12) as a component of Red Hat Enterprise Linux AppStream AUS (v.8.6)
  • postgresql-0:12.22-1.module+el8.6.0+25015+eae30833.7.src (postgresql:12) as a component of Red Hat Enterprise Linux AppStream EUS EXTENSION (v.8.6)
  • postgresql-0:12.22-1.module+el8.6.0+25015+eae30833.7.x86_64 (postgresql:12) as a component of Red Hat Enterprise Linux AppStream AUS (v.8.6)
  • postgresql-0:12.22-1.module+el8.6.0+25015+eae30833.7.x86_64 (postgresql:12) as a component of Red Hat Enterprise Linux AppStream EUS EXTENSION (v.8.6)
  • +48 more not shown

✅ Remediation

For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258 Workaround: To mitigate this vulnerability, administrators should avoid generating or restoring pg_dump files from untrusted or public origin servers using the psql client. If restoring a plain-format dump from an unverified source is strictly necessary, manually inspect the file for unauthorized \restrict or \unrestrict meta-commands before execution, or isolate the restore process in a sandboxed environment

🔗 References (4)