What is GHSA-87hg-xjfg-qh5r?

GHSA-87hg-xjfg-qh5r is a security advisory published by GitHub Security Advisories with High severity. Integer wraparound in IVFFlat index build in pgvector before 0.8.6 allows a database user to...

Which CVE IDs does GHSA-87hg-xjfg-qh5r cover?

GHSA-87hg-xjfg-qh5r covers the following CVE IDs: CVE-2026-18022. Each CVE has its own detail page on EchelonGraph Pulse with the synthesized EG score.

What is the CVSS v3 score of GHSA-87hg-xjfg-qh5r?

GHSA-87hg-xjfg-qh5r has a CVSS v3 base score of 8.8, published by GitHub Security Advisories.

GHSA-87hg-xjfg-qh5rHighCVSS 8.8

Integer wraparound in IVFFlat index build in pgvector before 0.8.6 allows a database user to...

Vendor

GitHub Security Advisories

Published

July 29, 2026

Last Modified

July 29, 2026

🔗 CVE IDs covered (1)

CVE-2026-18022 →

📋 Description

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.

🔗 References (4)

https://nvd.nist.gov/vuln/detail/CVE-2026-18022
https://github.com/pgvector/pgvector/issues/1006
https://github.com/pgvector/pgvector/commit/636a92a3395d2e036ffd40d07aeb400a708ae104
https://github.com/advisories/GHSA-87hg-xjfg-qh5r