What is GHSA-mpm7-fx5w-5w53?

GHSA-mpm7-fx5w-5w53 is a security advisory published by GitHub Security Advisories with Medium severity. Buffer over-read in PostgreSQL ascii() SQL function allows a user to disclose up to 3 bytes after...

Which CVE IDs does GHSA-mpm7-fx5w-5w53 cover?

GHSA-mpm7-fx5w-5w53 covers the following CVE IDs: CVE-2026-18024. Each CVE has its own detail page on EchelonGraph Pulse with the synthesized EG score.

What is the CVSS v3 score of GHSA-mpm7-fx5w-5w53?

GHSA-mpm7-fx5w-5w53 has a CVSS v3 base score of 4.3, published by GitHub Security Advisories.

GHSA-mpm7-fx5w-5w53MediumCVSS 4.3

Buffer over-read in PostgreSQL ascii() SQL function allows a user to disclose up to 3 bytes after...

Vendor

GitHub Security Advisories

Published

August 13, 2026

Last Modified

August 13, 2026

🔗 CVE IDs covered (1)

CVE-2026-18024 →

📋 Description

Buffer over-read in PostgreSQL ascii() SQL function allows a user to disclose up to 3 bytes after the end of a specific allocation, via a crafted text value. This is the same class of defect that CVE-2026-2006 fixed, though this instance has less impact. 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-2026-18024
https://www.postgresql.org/support/security/CVE-2026-18024
https://github.com/advisories/GHSA-mpm7-fx5w-5w53