CVE-2026-50263

MediumCVSS 5.5/10Last modified Aug 5, 2026

Description

A use-after-free flaw was found in the X.Org X server and Xwayland in CreateSaverWindow(). A client can trigger a use-after-free read after changing window attributes and forcing the screen saver, leading to information disclosure.

Metrics

CVSS 3.1 5.5/10CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

Weakness enumeration

CWE-416

Affected software

No affected versions have been published.

Timeline

Published: Jun 5, 2026
Last modified: Aug 5, 2026
NVD status: Modified

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