CVE-2026-46519

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Source
https://cve.org/CVERecord?id=CVE-2026-46519
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-46519.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-46519
Aliases
Downstream
Related
Published
2026-06-11T18:34:15.281Z
Modified
2026-08-12T03:51:31.843827984Z
Severity
  • 8.8 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H CVSS Calculator
Summary
mcp-server-kubernetes Affected By Tool Access Control Bypass: Presentation-Layer Filtering Without Execution-Layer Enforcement
Details

mcp-server-kubernetes is a Model Context Protocol server for Kubernetes cluster management. Prior to version 3.6.0, mcp-server-kubernetes exposes three environment variables (ALLOWONLYREADONLYTOOLS, ALLOWONLYNONDESTRUCTIVETOOLS, ALLOWEDTOOLS) documented as access controls for restricting which Kubernetes operations are available. These controls are enforced at the tool discovery layer (tools/list) but not at the execution layer (tools/call). Any client that knows a tool name can invoke it directly regardless of the configured restriction mode. The access control was effectively cosmetic. This issue has been patched in version 3.6.0.

Database specific 
{
    "cwe_ids": [
        "CWE-863"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/46xxx/CVE-2026-46519.json",
    "cna_assigner": "GitHub_M"
}
References

Affected packages

Git / github.com/flux159/mcp-server-kubernetes

Affected ranges

Type
GIT
Repo
https://github.com/flux159/mcp-server-kubernetes
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Fixed
16579d431157350f03682aabc30d7f6ae708724b
Database specific
Show details 
{
    "extracted_events": [
        {
            "introduced": "0"
        },
        {
            "fixed": "3.6.0"
        }
    ],
    "source": [
        "AFFECTED_FIELD",
        "REFERENCES"
    ]
}

Affected versions

0.*
0.2.4
0.2.5
0.3.0
0.3.1
0.3.2
0.4.0
1.*
1.0.0
1.0.1
1.1.0
1.2.0
1.3.0
1.3.1
1.3.2
1.4.0
1.5.0
1.6.0
1.6.1
1.6.2
2.*
2.0.0
2.1.0
2.1.1
2.2.0
2.2.1
2.3.0
2.3.1
2.4.0
2.4.1
2.4.2
2.4.3
2.4.4
2.4.5
2.4.6
2.4.7
2.4.9
2.5.0
2.5.1
2.6.0
2.7.0
2.8.0
2.9.0
2.9.1
2.9.2
2.9.3
2.9.4
2.9.5
2.9.6
2.9.7
2.9.8
2.9.9
3.*
3.0.0
3.0.1
3.0.2
3.0.3
3.0.4
3.0.5
3.1.0
3.1.1
3.2.0
3.2.1
3.3.0
3.4.0
3.5.0
3.5.1
v0.*
v0.2.0
v0.2.1
v0.2.2
v0.2.3
v0.2.4
v0.2.5
v0.3.0
v0.3.1
v0.3.2
v0.4.0
v1.*
v1.0.0
v1.0.1
v1.1.0
v1.2.0
v1.3.0
v1.3.1
v1.3.2
v1.4.0
v1.5.0
v1.6.0
v1.6.1
v1.6.2
v2.*
v2.0.0
v2.1.0
v2.1.1
v2.2.0
v2.2.1
v2.3.0
v2.3.1
v2.4.0
v2.4.1
v2.4.2
v2.4.3
v2.4.4
v2.4.5
v2.4.6
v2.4.7
v2.4.8
v2.4.9
v2.5.0
v2.5.1
v2.6.0
v2.7.0
v2.8.0
v2.9.0
v2.9.1
v2.9.2
v2.9.3
v2.9.4
v2.9.5
v2.9.6
v2.9.7
v2.9.8
v2.9.9
v3.*
v3.0.0
v3.0.1
v3.0.2
v3.0.3
v3.0.4
v3.0.5
v3.1.0
v3.1.1
v3.2.0
v3.2.1
v3.2.2
v3.3.0
v3.4.0
v3.5.0
v3.5.1

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-46519.json"