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National Vulnerability Database

National Vulnerability Database

NVD

National Vulnerability Database
  1. Vulnerabilities

CVE-2026-41187 Detail

Description

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.


Metrics

 
NVD enrichment efforts reference publicly available information to associate vector strings. CVSS information contributed by other sources is also displayed.
CVSS 4.0 Severity and Vector Strings:

NIST CVSS score
NIST: NVD
N/A
NVD assessment not yet provided.

Nist CVSS score does not match with CNA score
CNA:  Tigera, Inc.
CVSS-B 6.2 MEDIUM
Vector:  CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:L/VI:L/VA:L/SC:N/SI:L/SA:H

References to Advisories, Solutions, and Tools

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URL Source(s) Tag(s)
https://github.com/projectcalico/calico/pull/12731 Tigera, Inc.
https://github.com/projectcalico/calico/pull/12735 Tigera, Inc.
https://github.com/projectcalico/calico/pull/12736 Tigera, Inc.
https://github.com/projectcalico/calico/pull/12737 Tigera, Inc.
https://www.tigera.io/security-bulletins/tta-2026-006/ Tigera, Inc.

Weakness Enumeration

CWE-ID CWE Name Source
CWE-285 Improper Authorization Tigera, Inc.  
CWE-863 Incorrect Authorization Tigera, Inc.  

Change History

2 change records found show changes

Quick Info

CVE Dictionary Entry:
CVE-2026-41187
NVD Published Date:
07/30/2026
NVD Last Modified:
07/30/2026
Source:
Tigera, Inc.