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OpenAdvisories
High RLSA-2026:88359 1 CVE

Important: postgresql16-pgvector security update

Published Oct 23, 2026 · Updated Oct 23, 2026

Summary

Open-source vector similarity search for Postgres. Supports L2 distance, inner product, and cosine distance

Security Fix(es):

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

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.

Fixed packages 1

ReleasePackageFixed in
Rocky Linux · 10 postgresql16-pgvector 0:0.8.7-1.el10_2

Vulnerabilities 1

  • High 8.8

    pgvector buffer overflow in IVFFlat index build

    IVFFlat index build in pgvector before 0.8.7 allows a database user to write data out-of-bounds, which can lead to arbitrary code execution.

References

  • report
    https://bugzilla.redhat.com/show_bug.cgi?id=2544842
  • advisory
    https://access.redhat.com/errata/RHSA-2026:88359