CVE-2025-30163
March 24, 2025
Cilium is a networking, observability, and security solution with an eBPF-based dataplane. Node based network policies ("fromNodes" and "toNodes") will incorrectly permit traffic to/from non-node endpoints that share the labels specified in "fromNodes" and "toNodes" sections of network policies. Node based network policy is disabled by default in Cilium. This issue affects: Cilium v1.16 between v1.16.0 and v1.16.7 inclusive and v1.17 between v1.17.0 and v1.17.1 inclusive. This issue is fixed in Cilium v1.16.8 and v1.17.2. Users can work around this issue by ensuring that the labels used in "fromNodes" and "toNodes" fields are used exclusively by nodes and not by other endpoints.
Affected Packages
https://github.com/cilium/cilium.git (GITHUB):
Affected version(s) >=v1.17.0 <v1.17.2Fix Suggestion:
Update to version v1.17.2https://github.com/cilium/cilium.git (GITHUB):
Affected version(s) >=v1.16.0 <v1.16.8Fix Suggestion:
Update to version v1.16.8github.com/cilium/cilium (GO):
Affected version(s) >=v1.16.0 <v1.16.8Fix Suggestion:
Update to version v1.16.8Related Resources (5)
Do you need more information?
Contact UsCVSS v4
Base Score:
2.3
Attack Vector
ADJACENT
Attack Complexity
HIGH
Attack Requirements
NONE
Privileges Required
NONE
User Interaction
NONE
Vulnerable System Confidentiality
LOW
Vulnerable System Integrity
NONE
Vulnerable System Availability
NONE
Subsequent System Confidentiality
LOW
Subsequent System Integrity
NONE
Subsequent System Availability
NONE
CVSS v3
Base Score:
3.4
Attack Vector
ADJACENT
Attack Complexity
HIGH
Privileges Required
NONE
User Interaction
NONE
Scope
CHANGED
Confidentiality
LOW
Integrity
NONE
Availability
NONE
Weakness Type (CWE)
Incorrect Authorization
EPSS
Base Score:
0.05
