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CVE-2026-50262

MEDIUM NVD
CVSS Score 5.5
Severity MEDIUM
Published Jun 05, 2026
Vendor unknown

Description

An out-of-bounds read flaw was found in the X.Org X server and Xwayland in __glXDisp_ChangeDrawableAttributes(). A wrong size validation check can read a client-controlled number of bytes, exceeding the request buffer, leading to information disclosure. A write path also exists but requires byte-swapped clients which is disabled by default.

References