CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
LOW
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:H
AI Score
Confidence
Low
EPSS
Percentile
15.5%
amphp/http-client is vulnerable to Denial Of Service. The vulnerability is due to unbounded buffering of HTTP/2 CONTINUATION frames until the END_HEADERS flag is received, which results in a memory exhaustion crash.