RHSA-2026:88359HighCVSS 8.8

Red Hat Security Advisory: postgresql16-pgvector security update

Published
October 22, 2026
Last Modified
October 23, 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 products14

  • Red Hat Enterprise Linux AppStream (v. 10)
  • pgvector-0:0.8.7-1.el10_2.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 10)
  • pgvector-0:0.8.7-1.el10_2.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 10)
  • pgvector-0:0.8.7-1.el10_2.s390x as a component of Red Hat Enterprise Linux AppStream (v. 10)
  • pgvector-0:0.8.7-1.el10_2.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 10)
  • pgvector-debuginfo-0:0.8.7-1.el10_2.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 10)
  • pgvector-debuginfo-0:0.8.7-1.el10_2.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 10)
  • pgvector-debuginfo-0:0.8.7-1.el10_2.s390x as a component of Red Hat Enterprise Linux AppStream (v. 10)
  • pgvector-debuginfo-0:0.8.7-1.el10_2.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 10)
  • postgresql16-pgvector-0:0.8.7-1.el10_2.src as a component of Red Hat Enterprise Linux AppStream (v. 10)
  • postgresql16-pgvector-debugsource-0:0.8.7-1.el10_2.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 10)
  • postgresql16-pgvector-debugsource-0:0.8.7-1.el10_2.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 10)
  • postgresql16-pgvector-debugsource-0:0.8.7-1.el10_2.s390x as a component of Red Hat Enterprise Linux AppStream (v. 10)
  • postgresql16-pgvector-debugsource-0:0.8.7-1.el10_2.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 10)

✅ 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)