CVE-2026-18022 (GCVE-0-2026-18022)

Vulnerability from cvelistv5 – Published: 2026-07-29 18:55 – Updated: 2026-10-07 02:15
VLAI
Title
pgvector buffer overflow via integer wraparound in IVFFlat index build on 32-bit systems
Summary
Integer wraparound in IVFFlat index build in pgvector before 0.8.6 allows a database user to write data out-of-bounds, which could lead to arbitrary code execution. Only 32-bit systems are affected.
Severity
8.8 (High)
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
SSVC
Exploitation: none Automatable: no Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-07-30 00:00 UTC
CWE
  • CWE-190 - Integer Overflow or Wraparound
  • CWE-787 - Out-of-bounds Write
Assigner
PostgreSQL CNA under the redhat root
CNA scorecard C 67/100 over 88 records in the last 180 days details
References
Impacted products
Vendor Product Version CPE status
n/a pgvector Affected: 0 , < 0.8.6 (semver)
Credits
Thanks to 0xJi3F for reporting this, as well as Thai Son Dinh from VinSOC Labs.
Show details on NVD website
To clipboard 

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