VulnerabilityAnalyzed
CVE-2026-18022
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.
HIGH 8.8EPSS 0.33%
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (0.33%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
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.
- CVSS 3.1
- 8.8 HIGHCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 0.33% probability · 27th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-190, CWE-787
- Affected
- pgvector project/pgvector
- Source
- f86ef6dc-4d3a-42ad-8f28-e6d5547a5007
References
- https://github.com/pgvector/pgvector/commit/636a92a3395d2e036ffd40d07aeb400a708ae104Patch
- https://github.com/pgvector/pgvector/issues/1006Issue Tracking, Vendor Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.