Integer Underflow (Wrap or Wraparound) Affecting pgvector/pgvector package, versions [,0.8.2)
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applications- Snyk IDSNYK-UNMANAGED-PGVECTORPGVECTOR-15364893
- published28 Feb 2026
- disclosed26 Feb 2026
- creditchungkn
Introduced: 26 Feb 2026
CVE-2026-3172 (opens in a new tab)How to fix?
Upgrade pgvector/pgvector to version 0.8.2 or higher.
Overview
Affected versions of this package are vulnerable to Integer Underflow (Wrap or Wraparound) in the parallel HNSW index build process. An attacker can access sensitive data from other database relations or cause a server crash by executing crafted database queries.