CVE-2026-41187

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Source
https://cve.org/CVERecord?id=CVE-2026-41187
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-41187.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-41187
Downstream
Related
Published
2026-07-30T14:45:04.247Z
Modified
2026-08-12T03:51:12.050553963Z
Severity
  • 6.2 (Medium) CVSS_V4 - 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 CVSS Calculator
Summary
Calico Tier Authorization Bypass via DeleteCollection
Details

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.

Database specific 
{
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/41xxx/CVE-2026-41187.json",
    "unresolved_ranges": [
        {
            "source": "AFFECTED_FIELD",
            "extracted_events": [
                {
                    "fixed": "3.21.7"
                },
                {
                    "fixed": "22.4.0"
                }
            ]
        }
    ],
    "cwe_ids": [
        "CWE-285",
        "CWE-863"
    ],
    "cna_assigner": "Tigera"
}
References

Affected packages

Git / github.com/projectcalico/calico

Affected ranges

Type
GIT
Repo
https://github.com/projectcalico/calico
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Fixed
cc4364f81fbb6dc6fe6e140456c98169dac99f1c
Introduced
a86e41d021c4c60e1f73d8dce396fe249d708cc7
Fixed
a0e92905ed405c469494cf818821373e0c44d64c
Introduced
eb1cf57823a1dd8d25c48b82fd023ea9e3e17996
Fixed
0ca9d1b93644778cafdf1812f3dda02ac0c361e8
Database specific
Show details 
{
    "cpe": [
        "cpe:2.3:a:tigera:calico:*:*:*:*:open_source:*:*:*",
        "cpe:2.3:a:tigera:calico:*:*:*:*:enterprise:*:*:*"
    ],
    "source": "CPE_RANGE",
    "extracted_events": [
        {
            "introduced": "0"
        },
        {
            "fixed": "3.31.6"
        },
        {
            "introduced": "3.22.0"
        },
        {
            "fixed": "3.22.4"
        },
        {
            "introduced": "3.32.0"
        },
        {
            "fixed": "3.32.1"
        }
    ]
}

Affected versions

v2.*
v2.5.0
v2.5.0-calico
v2.5.0-rc2
v2.5.0-rc2-calico
v2.6.0
v2.6.0-calico
v2.6.0-rc1
v2.6.0-rc1-calico
v2.6.0-rc2
v2.6.0-rc2-calico
v2.6.2
v2.6.2-calico
v3.*
v3.0.0
v3.0.0-alpha1-rc1
v3.0.0-alpha1-rc1-calico
v3.0.0-calico
v3.0.1
v3.0.1-calico
v3.0.12
v3.0.12-calico
v3.1.7
v3.1.7-calico
v3.10.0
v3.10.0-calico
v3.10.2
v3.10.2-calico
v3.11.1
v3.11.1-calico
v3.16.0
v3.16.0-calico
v3.16.5
v3.16.5-calico
v3.17.5
v3.17.5-calico
v3.18.1
v3.18.1-calico
v3.18.5
v3.18.5-calico
v3.2.0
v3.2.0-calico
v3.2.8
v3.2.8-calico
v3.22.3-0.dev
v3.24.0-0.dev
v3.25.0-0.dev
v3.27.0-0.dev
v3.28.0-0.dev
v3.29.0-0.dev
v3.3.7
v3.3.7-calico
v3.30.0-0.dev
v3.31.0-0.dev
v3.31.1
v3.32.0
v3.8.5
v3.8.5-calico
v3.9.0
v3.9.0-calico
v3.9.4
v3.9.4-calico

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-41187.json"