CVE-2026-56000 — xorg-x11-server / xwayland GLX contextTags Use-After-Free in CommonMakeCurrent()
Local attackers with a X connection able to provide GLX commit to the X server xorg-server before 21.2.24 and xwayland before 24.1.13 could cause a Heap Use After Free, due to C…
Published: 2026-07-08 · CVSS: 9.0 · CVSS 4.0
Local attackers with a X connection able to provide GLX commit to the X server xorg-server before 21.2.24 and xwayland before 24.1.13 could cause a Heap Use After Free, due to CommonMakeCurrent() pointing into potentially reallocated memory.
Source: CVE Program · Revision 8b16575c39f1e1810c5e863010da073d2d3285e7