What is GHSA-m6g7-vvh9-445r?

GHSA-m6g7-vvh9-445r is a security advisory published by GitHub Security Advisories with High severity. Type confusion in PostgreSQL "portal"/cursor lifecycle allows a user to execute arbitrary code as...

Which CVE IDs does GHSA-m6g7-vvh9-445r cover?

GHSA-m6g7-vvh9-445r covers the following CVE IDs: CVE-2026-16239. Each CVE has its own detail page on EchelonGraph Pulse with the synthesized EG score.

What is the CVSS v3 score of GHSA-m6g7-vvh9-445r?

GHSA-m6g7-vvh9-445r has a CVSS v3 base score of 8.8, published by GitHub Security Advisories.

GHSA-m6g7-vvh9-445rHighCVSS 8.8

Type confusion in PostgreSQL "portal"/cursor lifecycle allows a user to execute arbitrary code as...

Vendor

GitHub Security Advisories

Published

August 13, 2026

Last Modified

August 13, 2026

🔗 CVE IDs covered (1)

CVE-2026-16239 →

📋 Description

Type confusion in PostgreSQL "portal"/cursor lifecycle allows a user to execute arbitrary code as the operating system user running the database, via re-creation of a cursor or other portal with different types. Versions before PostgreSQL 18.5, 17.11, 16.15, 15.19, and 14.24 are affected.

🔗 References (3)

https://nvd.nist.gov/vuln/detail/CVE-2026-16239
https://www.postgresql.org/support/security/CVE-2026-16239
https://github.com/advisories/GHSA-m6g7-vvh9-445r