RHSA-2026:85814HighCVSS 8.8

Red Hat Security Advisory: postgresql:18 security update

Published
October 20, 2026
Last Modified
October 20, 2026

🔗 CVE IDs covered (1)

CVE-2026-103484 →

📋 Description

CVE-2026-103484 — pgvector: pgvector: Arbitrary code execution via out-of-bounds write during IVFFlat index build

🎯 Affected products200

  • Red Hat Enterprise Linux AppStream (v. 9)
  • pg_repack-0:1.5.3-1.module+el9.8.0+23739+1c42644c.aarch64 (postgresql:18) as a component of Red Hat Enterprise Linux AppStream (v. 9)
  • pg_repack-0:1.5.3-1.module+el9.8.0+23739+1c42644c.ppc64le (postgresql:18) as a component of Red Hat Enterprise Linux AppStream (v. 9)
  • pg_repack-0:1.5.3-1.module+el9.8.0+23739+1c42644c.s390x (postgresql:18) as a component of Red Hat Enterprise Linux AppStream (v. 9)
  • pg_repack-0:1.5.3-1.module+el9.8.0+23739+1c42644c.src (postgresql:18) as a component of Red Hat Enterprise Linux AppStream (v. 9)
  • pg_repack-0:1.5.3-1.module+el9.8.0+23739+1c42644c.x86_64 (postgresql:18) as a component of Red Hat Enterprise Linux AppStream (v. 9)
  • pg_repack-debuginfo-0:1.5.3-1.module+el9.8.0+23739+1c42644c.aarch64 (postgresql:18) as a component of Red Hat Enterprise Linux AppStream (v. 9)
  • pg_repack-debuginfo-0:1.5.3-1.module+el9.8.0+23739+1c42644c.ppc64le (postgresql:18) as a component of Red Hat Enterprise Linux AppStream (v. 9)
  • pg_repack-debuginfo-0:1.5.3-1.module+el9.8.0+23739+1c42644c.s390x (postgresql:18) as a component of Red Hat Enterprise Linux AppStream (v. 9)
  • pg_repack-debuginfo-0:1.5.3-1.module+el9.8.0+23739+1c42644c.x86_64 (postgresql:18) as a component of Red Hat Enterprise Linux AppStream (v. 9)
  • pg_repack-debugsource-0:1.5.3-1.module+el9.8.0+23739+1c42644c.aarch64 (postgresql:18) as a component of Red Hat Enterprise Linux AppStream (v. 9)
  • pg_repack-debugsource-0:1.5.3-1.module+el9.8.0+23739+1c42644c.ppc64le (postgresql:18) as a component of Red Hat Enterprise Linux AppStream (v. 9)
  • pg_repack-debugsource-0:1.5.3-1.module+el9.8.0+23739+1c42644c.s390x (postgresql:18) as a component of Red Hat Enterprise Linux AppStream (v. 9)
  • pg_repack-debugsource-0:1.5.3-1.module+el9.8.0+23739+1c42644c.x86_64 (postgresql:18) as a component of Red Hat Enterprise Linux AppStream (v. 9)
  • pgaudit-0:18.0-1.module+el9.8.0+23739+1c42644c.aarch64 (postgresql:18) as a component of Red Hat Enterprise Linux AppStream (v. 9)
  • pgaudit-0:18.0-1.module+el9.8.0+23739+1c42644c.ppc64le (postgresql:18) as a component of Red Hat Enterprise Linux AppStream (v. 9)
  • pgaudit-0:18.0-1.module+el9.8.0+23739+1c42644c.s390x (postgresql:18) as a component of Red Hat Enterprise Linux AppStream (v. 9)
  • pgaudit-0:18.0-1.module+el9.8.0+23739+1c42644c.src (postgresql:18) as a component of Red Hat Enterprise Linux AppStream (v. 9)
  • pgaudit-0:18.0-1.module+el9.8.0+23739+1c42644c.x86_64 (postgresql:18) as a component of Red Hat Enterprise Linux AppStream (v. 9)
  • pgaudit-debuginfo-0:18.0-1.module+el9.8.0+23739+1c42644c.aarch64 (postgresql:18) as a component of Red Hat Enterprise Linux AppStream (v. 9)
  • pgaudit-debuginfo-0:18.0-1.module+el9.8.0+23739+1c42644c.ppc64le (postgresql:18) as a component of Red Hat Enterprise Linux AppStream (v. 9)
  • pgaudit-debuginfo-0:18.0-1.module+el9.8.0+23739+1c42644c.s390x (postgresql:18) as a component of Red Hat Enterprise Linux AppStream (v. 9)
  • pgaudit-debuginfo-0:18.0-1.module+el9.8.0+23739+1c42644c.x86_64 (postgresql:18) as a component of Red Hat Enterprise Linux AppStream (v. 9)
  • pgaudit-debugsource-0:18.0-1.module+el9.8.0+23739+1c42644c.aarch64 (postgresql:18) as a component of Red Hat Enterprise Linux AppStream (v. 9)
  • pgaudit-debugsource-0:18.0-1.module+el9.8.0+23739+1c42644c.ppc64le (postgresql:18) as a component of Red Hat Enterprise Linux AppStream (v. 9)
  • pgaudit-debugsource-0:18.0-1.module+el9.8.0+23739+1c42644c.s390x (postgresql:18) as a component of Red Hat Enterprise Linux AppStream (v. 9)
  • pgaudit-debugsource-0:18.0-1.module+el9.8.0+23739+1c42644c.x86_64 (postgresql:18) as a component of Red Hat Enterprise Linux AppStream (v. 9)
  • pgvector-0:0.8.7-1.module+el9.8.0+25065+515b563e.aarch64 (postgresql:18) as a component of Red Hat Enterprise Linux AppStream (v. 9)
  • pgvector-0:0.8.7-1.module+el9.8.0+25065+515b563e.ppc64le (postgresql:18) as a component of Red Hat Enterprise Linux AppStream (v. 9)
  • pgvector-0:0.8.7-1.module+el9.8.0+25065+515b563e.s390x (postgresql:18) as a component of Red Hat Enterprise Linux AppStream (v. 9)
  • +170 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: Restrict schema creation permissions to prevent untrusted database accounts from building indexes, or remove the optional pgvector package if vector indexing is not needed.

🔗 References (4)