# Seventeen security vulnerabilities disclosed for X.Org client libraries

> **Key takeaway:** Multiple X.Org client libraries are affected by out-of-bounds reads/writes and heap buffer overflows.

**Published:** 2026-10-16T19:20:39+00:00 
**Source:** Phoronix Linux Gaming & Graphics Drivers 
**Category:** open-gaming 
**Canonical URL:** https://fosswire.org/news/seventeen-security-vulnerabilities-disclosed-for-xorg-client.html 

## Summary
Following recent disclosures for X.Org Server and XWayland, seventeen new vulnerabilities have been made public affecting several X.Org client libraries. The flaws, discovered by various researchers, include out-of-bounds memory access and potential denial of service. Users should update to the patched versions of libX11, libXi, libXpm, libXrender, and libXtst.

## Affected libraries and fixes
- **libX11**: Updated to 1.8.14
- **libXi**: Updated to 1.8.4
- **libXpm**: Updated to 3.5.20
- **libXrender**: Updated to 0.9.13
- **libXtst**: Updated to 1.2.6
- Vulnerability types include **out-of-bounds reads/writes**, **heap buffer overflows**, and **denial of service**.

## Why it matters
These vulnerabilities affect the fundamental client-side libraries used by many X11-based applications and desktop environments.