CVE-2026-78669
Published:October 08, 2026
Updated:October 09, 2026
A malicious HTTP/2 peer can cause excessive CPU consumption in the client or server by opening a large number of streams and then sending many small SETTINGS frames containing SETTINGS_INITIAL_WINDOW_SIZE values.
Affected Packages
https://github.com/golang/net.git (GITHUB):
Affected version(s) >=v0.1.0 <v0.60.0Fix Suggestion:
Update to version v0.60.0https://github.com/golang/go.git (GITHUB):
Affected version(s) >=go1.6 <go1.26.9Fix Suggestion:
Update to version go1.26.9https://github.com/golang/go.git (GITHUB):
Affected version(s) >=go1.27.0 <go1.27.2Fix Suggestion:
Update to version go1.27.2github.com/golang/go (GO):
Affected version(s) >=go1.6 <go1.26.9Fix Suggestion:
Update to version go1.26.9github.com/golang/go (GO):
Affected version(s) >=go1.27.0 <go1.27.2Fix Suggestion:
Update to version go1.27.2golang.org/x/net (GO):
Affected version(s) >=v0.0.0-20150924072440-17e723d0226c <v0.60.0Fix Suggestion:
Update to version v0.60.0Related Resources (6)
Do you need more information?
Contact UsCVSS v4
Base Score:
8.7
Attack Vector
NETWORK
Attack Complexity
LOW
Attack Requirements
NONE
Privileges Required
NONE
User Interaction
NONE
Vulnerable System Confidentiality
NONE
Vulnerable System Integrity
NONE
Vulnerable System Availability
HIGH
Subsequent System Confidentiality
NONE
Subsequent System Integrity
NONE
Subsequent System Availability
NONE
CVSS v3
Base Score:
7.5
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
NONE
Availability
HIGH
Weakness Type (CWE)
Asymmetric Resource Consumption (Amplification)