CVE-2019-1000007

aioxmpp version 0.10.2 and earlier contains a Improper Handling of
Structural Elements vulnerability in Stanza Parser, rollback during error
processing, aioxmpp.xso.model.guard function that can result in Denial of
Service, Other. This attack appears to be exploitable via Remote. A crafted
stanza can be sent to an application which uses the vulnerable components
to either inject data in a different context or cause the application to
reconnect (potentially losing data). This vulnerability appears to have
been fixed in 0.10.3.