Add recursion depth guard during decode in encoding/xml
Previously, DecodeElement would reset the depth counter causing it to never fire; this could lead to stack exhaustion.
Exploitability
AV:N
AC:L
PR:N
UI:N
Scope
S:U
Impact
C:N
I:N
A:H
7.5/CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H