UBUNTU-CVE-2026-18022

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Source
https://ubuntu.com/security/CVE-2026-18022
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-18022.json
JSON Data
https://api.osv.dev/v1/vulns/UBUNTU-CVE-2026-18022
Upstream
Published
2026-07-31T00:00:00Z
Modified
2026-07-31T14:38:07.476851197Z
Severity
  • 8.8 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H CVSS Calculator
  • Ubuntu - medium
Summary
[none]
Details

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

Affected packages

Ubuntu:24.04:LTS / pgvector

Package

Name
pgvector
Purl
pkg:deb/ubuntu/pgvector?arch=source&distro=noble

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected

Affected versions

0.*
0.4.4-1
0.5.1-1
0.6.0-1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "postgresql-16-pgvector",
            "binary_version": "0.6.0-1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-18022.json"

Ubuntu:26.04:LTS / pgvector

Package

Name
pgvector
Purl
pkg:deb/ubuntu/pgvector?arch=source&distro=resolute

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected

Affected versions

0.*
0.8.0-1
0.8.1-2

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "postgresql-18-pgvector",
            "binary_version": "0.8.1-2"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-18022.json"