CVE-2026-93543

An out-of-bounds read vulnerability in the XI2 class parser of libXi prior to version 1.8.4 allows malicious X servers to exploit this flaw, potentially leading to crashes of connected X client applications. This issue poses a high risk, particularly for environments utilizing X server architectures, and should be prioritized by organizations relying on libXi for graphical interface management. Immediate updates to the latest version are recommended to mitigate the risk of exploitation.