CVE-2026-41187
Published:July 30, 2026
Updated:August 06, 2026
Calico's apiserver wraps tier-scoped resources so that every operation runs through AuthorizeTierOperation, but the Delete override on NetworkPolicy, GlobalNetworkPolicy, and their staged variants is not invoked for DeleteCollection requests. A user holding the deletecollection verb or wildcard verbs on tier-scoped policy resources can bulk-delete policies in tiers they otherwise have no rights on, breaking the tier authorization boundary.
Affected Packages
https://github.com/projectcalico/calico.git (GITHUB):
Affected version(s) >=v3.31.0 <v3.31.6Fix Suggestion:
Update to version v3.31.6https://github.com/projectcalico/calico.git (GITHUB):
Affected version(s) =v3.32.0 <v3.32.1Fix Suggestion:
Update to version v3.32.1Related Resources (7)
Do you need more information?
Contact UsCVSS v4
Base Score:
6.2
Attack Vector
NETWORK
Attack Complexity
LOW
Attack Requirements
NONE
Privileges Required
HIGH
User Interaction
NONE
Vulnerable System Confidentiality
LOW
Vulnerable System Integrity
LOW
Vulnerable System Availability
LOW
Subsequent System Confidentiality
NONE
Subsequent System Integrity
LOW
Subsequent System Availability
HIGH
CVSS v3
Base Score:
6.6
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
HIGH
User Interaction
NONE
Scope
CHANGED
Confidentiality
LOW
Integrity
LOW
Availability
LOW
EPSS
Base Score:
0.27