What is GHSA-m27x-8754-w5v9?

GHSA-m27x-8754-w5v9 is a security advisory published by GitHub Security Advisories with High severity. Integer wraparound in PostgreSQL 32-bit builds of pltcl and plperl allows an object creator to...

Which CVE IDs does GHSA-m27x-8754-w5v9 cover?

GHSA-m27x-8754-w5v9 covers the following CVE IDs: CVE-2026-14677. Each CVE has its own detail page on EchelonGraph Pulse with the synthesized EG score.

What is the CVSS v3 score of GHSA-m27x-8754-w5v9?

GHSA-m27x-8754-w5v9 has a CVSS v3 base score of 8.8, published by GitHub Security Advisories.

GHSA-m27x-8754-w5v9HighCVSS 8.8

Integer wraparound in PostgreSQL 32-bit builds of pltcl and plperl allows an object creator to...

Vendor

GitHub Security Advisories

Published

August 13, 2026

Last Modified

August 13, 2026

🔗 CVE IDs covered (1)

CVE-2026-14677 →

📋 Description

Integer wraparound in PostgreSQL 32-bit builds of pltcl and plperl allows an object creator to cause the server to undersize an allocation and write out-of-bounds via crafted function bodies. This may execute arbitrary code as the operating system user running the database. CVE-2026-6473 had fixed similar problems. 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-2026-14677
https://www.postgresql.org/support/security/CVE-2026-14677
https://github.com/advisories/GHSA-m27x-8754-w5v9