Debian/xwayland: high 7.8
A stack-based buffer overflow flaw was found in the X.Org X server and Xwayland. The X server has multiple stack buffers sized XkbMaxShiftLevel * XkbNumKbdGroups but CheckKeyTypes() does not verify or
Action: No fix published. Pin and monitor.
Affected
| introduced | fixed | last affected |
|---|---|---|
| 0 | - | - |
Fixed versions
No fixed version in the source.
Sources
- osv: DEBIAN-CVE-2026-50258#Debian:13/xwayland
- https://security-tracker.debian.org/tracker/CVE-2026-50258
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