Fission router exposes /fission-function// on its public listener, allowing invocation of any function without an HTTPTrigger_CVE-2026-46614

{
    "lastseen": "",
    "description": "Fission is an open-source, Kubernetes-native serverless framework that simplifies the deployment of functions and applications on Kubernetes. Prior to version 1.23.0, the Fission router registers an internal-style route \u2014 /fission-function/<name> and /fission-function/<ns>/<name> \u2014 for every Function object, independent of whether any HTTPTrigger exists for that function. The route was mounted on the same listener as user-defined HTTPTriggers (svc/router, port 8888), so any caller who could reach the router could invoke any function by guessing its metadata.name (and namespace), bypassing the host / path / method / method-allow-list restrictions encoded in HTTPTrigger objects. This issue has been patched in version 1.23.0.",
    "published": "2026-06-10T17:19:21.691Z",
    "modified": "2026-06-10T18:44:54.697Z",
    "type": "cve",
    "title": "Fission router exposes /fission-function/<ns>/<name> on its public listener, allowing invocation of any function without an HTTPTrigger",
    "source": "GitHub_M",
    "references": "https://github.com/fission/fission/security/advisories/GHSA-3g33-6vg6-27m8\nhttps://github.com/fission/fission/pull/3365\nhttps://github.com/fission/fission/pull/3369\nhttps://github.com/fission/fission/releases/tag/v1.23.0",
    "id": "CVE-2026-46614",
    "bulletinFamily": "",
    "cwe": [
        "CWE-284",
        "CWE-862"
    ],
    "cvelist": null,
    "sourceData": "fission fission < 1.23.0",
    "sourceHref": "",
    "cvss": {
        "score": 9.8,
        "severity": "CRITICAL",
        "vector": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
        "version": "3.1"
    },
    "cvss2": [],
    "cvss3": {
        "version": "",
        "vectorString": "",
        "baseScore": 0,
        "baseSeverity": "",
        "attackVector": "",
        "attackComplexity": "",
        "privilegesRequired": "",
        "userInteraction": "",
        "scope": "",
        "confidentialityImpact": "",
        "integrityImpact": "",
        "availabilityImpact": "",
        "cvssV3": {
            "version": "",
            "vectorString": "",
            "baseScore": 0,
            "baseSeverity": "",
            "attackVector": "",
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            "privilegesRequired": "",
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            "confidentialityImpact": "",
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            "availabilityImpact": ""
        }
    },
    "href": "",
    "category_name": "CVE",
    "post_link": "",
    "product": "fission",
    "version": "< 1.23.0",
    "vendor": "fission",
    "ai_description": "Unauthenticated invocation of any function by guessing its metadata.name and namespace, bypassing HTTPTrigger restrictions",
    "ai_severity": "Critical",
    "ai_vendor": "Fission",
    "ai_product": "Fission",
    "ai_version": "< 1.23.0",
    "ai_score": 9.8
}