7.8 High
CVSS2
Access Vector
NETWORK
Access Complexity
LOW
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
COMPLETE
AV:N/AC:L/Au:N/C:N/I:N/A:C
0.032 Low
EPSS
Percentile
91.0%
plugins/mod_compression.lua in (1) Prosody before 0.9.4 and (2) Lightwitch
Metronome through 3.4 negotiates stream compression while a session is
unauthenticated, which allows remote attackers to cause a denial of service
(resource consumption) via compressed XML elements in an XMPP stream, aka
an “xmppbomb” attack.