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.
{
"cna_assigner": "PostgreSQL",
"cwe_ids": [
"CWE-190",
"CWE-787"
],
"osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/18xxx/CVE-2026-18022.json"
}{
"extracted_events": [
{
"cpe": "cpe:2.3:a:pgvector_project:pgvector:*:*:*:*:*:postgresql:*:*",
"range": [
{
"introduced": "0"
},
{
"fixed": "0.8.6"
}
],
"source": "CPE_RANGE"
},
{
"range": [
{
"fixed": "636a92a3395d2e036ffd40d07aeb400a708ae104"
}
],
"source": "REFERENCES_COMMIT"
}
]
}