CVE-2026-50262

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

• Advisories
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Details

Source: Mitre, NVD

Risk Information

CVSS v2

CVSS v3

EPSS