What is GHSA-w99c-x9xf-3prr?

GHSA-w99c-x9xf-3prr is a security advisory published by GitHub Security Advisories with High severity. A vulnerability has been identified in LineInst.exe (LINE for Windows) prior to version 26.4.0,...

Which CVE IDs does GHSA-w99c-x9xf-3prr cover?

GHSA-w99c-x9xf-3prr covers the following CVE IDs: CVE-2026-13133. Each CVE has its own detail page on EchelonGraph Pulse with the synthesized EG score.

GHSA-w99c-x9xf-3prrHigh

A vulnerability has been identified in LineInst.exe (LINE for Windows) prior to version 26.4.0,...

Vendor

GitHub Security Advisories

Published

August 10, 2026

Last Modified

August 10, 2026

🔗 CVE IDs covered (1)

CVE-2026-13133 →

📋 Description

A vulnerability has been identified in LineInst.exe (LINE for Windows) prior to version 26.4.0, where Msftedit.dll is loaded via a relative path without a secure DLL search path, allowing a malicious DLL placed in the installer's directory to be loaded ahead of the legitimate System32 copy.

🔗 References (3)

https://nvd.nist.gov/vuln/detail/CVE-2026-13133
https://line.github.io/security-advisory-blog/CVE-2026-13133
https://github.com/advisories/GHSA-w99c-x9xf-3prr