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CVE-2026-18022

8.8 · HIGH

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.

Published Jul 29, 2026pgvector_projectCWE-190EPSS 0.60%

Overview

CVE-2026-18022 is a high-severity vulnerability affecting pgvector_project pgvector. It was published on July 29, 2026 and has a CVSS 3.1 base score of 8.8 (HIGH).

This vulnerability has a CVSS 3.1 base score of 8.8, rated HIGH. It can be exploited remotely over the network. Some level of privileges is required for exploitation.

Technical 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.

Remediation

Check the references section for vendor advisories and patches from pgvector_project. Update pgvector to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

Affected products

VendorProductVersionsStatus
pgvector_projectpgvector>= 0, < 0.8.6Affected

References

GitHubgithub.com/pgvector/pgvector/commit/636a92a3395d2e036ffd40d07aeb400a708ae104GitHubgithub.com/pgvector/pgvector/issues/1006

How CyberStrike helps

Frequently asked questions

What is CVE-2026-18022?

CVE-2026-18022 is a high-severity vulnerability affecting pgvector_project pgvector. It was published on July 29, 2026 and has a CVSS 3.1 base score of 8.8 (HIGH).

How severe is CVE-2026-18022?

This vulnerability has a CVSS 3.1 base score of 8.8, rated HIGH. It can be exploited remotely over the network. Some level of privileges is required for exploitation.

How do I fix or remediate CVE-2026-18022?

Check the references section for vendor advisories and patches from pgvector_project. Update pgvector to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2026-18022?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2026-18022 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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