CVE-2025-22870
March 12, 2025
In Go net/http, x/net/proxy, x/net/http/httpproxy there is a proxy bypass vulnerability using IPv6 zone IDs. Matching of hosts against proxy patterns could improperly treat an IPv6 zone ID
as a hostname component. For example, when the NO_PROXY environment variable was
set to "*.example.com", a request to "[::1%25.example.com]:80` would incorrectly
match and not be proxied. This affects versions before 1.23.7 and 1.24.x before 1.24.1.
Affected Packages
https://github.com/golang/net.git (GITHUB):
Affected version(s) >=v0.1.0 <v0.36.0Fix Suggestion:
Update to version v0.36.0https://github.com/golang/go.git (GITHUB):
Affected version(s) >=go1 <go1.23.6Fix Suggestion:
Update to version go1.23.6https://github.com/golang/go.git (GITHUB):
Affected version(s) =go1.24.0 <go1.24.1Fix Suggestion:
Update to version go1.24.1Related Resources (9)
Do you need more information?
Contact UsCVSS v4
Base Score:
4.8
Attack Vector
LOCAL
Attack Complexity
LOW
Attack Requirements
NONE
Privileges Required
LOW
User Interaction
NONE
Vulnerable System Confidentiality
LOW
Vulnerable System Integrity
NONE
Vulnerable System Availability
LOW
Subsequent System Confidentiality
NONE
Subsequent System Integrity
NONE
Subsequent System Availability
NONE
CVSS v3
Base Score:
4.4
Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
LOW
Integrity
NONE
Availability
LOW
EPSS
Base Score:
0.02
