xorg-x11-server: xorg-x11-server-Xwayland: xorg-x11-server: out-of-bounds read/write in GLX ChangeDrawableAttributes

An out-of-bounds read flaw was found in the X.Org X server and Xwayland in glXDispChangeDrawableAttributes. 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-swapp...

xorg-x11-server: xorg-x11-server-Xwayland: xorg-x11-server: out-of-bounds read/write in GLX ChangeDrawableAttributes

An out-of-bounds read flaw was found in the X.Org X server and Xwayland in glXDispChangeDrawableAttributes. 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-swapp...

The vulnerability of the __glXDisp_ChangeDrawableAttributes() function in the Wayland protocol implementation for X.Org XWaylan, as well as in the X.Org Server implementation of the X Window System, allows a malicious actor to gain unauthorized access to protected information.

The vulnerability of the glXDispChangeDrawableAttributes function in the Wayland protocol implementation for X.Org XWaylan, as well as in the X.Org Server implementation of the X Window System, is related to reading data beyond the permitted range of memory. Exploiting this vulnerability could...

Xorg-x11-server: xorg-x11-server-xwayland: xorg-x11-server: out-of-bounds read/write in glx changedrawableattributes

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CVE-2026-50262 Xorg-x11-server: xorg-x11-server-xwayland: xorg-x11-server: out-of-bounds read/write in glx changedrawableattributes

An out-of-bounds read flaw was found in the X.Org X server and Xwayland in glXDispChangeDrawableAttributes. 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-swapp...

CVE-2026-50262 Xorg-x11-server: xorg-x11-server-xwayland: xorg-x11-server: out-of-bounds read/write in glx changedrawableattributes

An out-of-bounds read flaw was found in the X.Org X server and Xwayland in glXDispChangeDrawableAttributes. 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-swapp...

PT-2026-46942

Name of the Vulnerable Software and Affected Versions X.Org X server affected versions not specified Xwayland affected versions not specified Description An out-of-bounds read flaw exists in the glXDisp ChangeDrawableAttributes function. Due to an incorrect size validation check, the system may...