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        "cveId": "CVE-2026-86543",
        "assignerOrgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10",
        "state": "PUBLISHED",
        "assignerShortName": "VulnCheck",
        "dateReserved": "2026-09-07T22:18:53.235Z",
        "datePublished": "2026-09-07T23:03:20.773Z",
        "dateUpdated": "2026-09-24T14:21:26.978Z"
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            "datePublic": "2026-08-16T00:00:00.000Z",
            "title": "knowns before 0.30.0 Unauthenticated Management API Exposure",
            "descriptions": [
                {
                    "lang": "en",
                    "value": "knowns versions before 0.30.0 serve the management API without authentication on all network interfaces by default, with no password required on fresh installations. Attackers can access the unauthenticated /api/tunnel/start endpoint to provision a public tunnel and republish the API at a publicly accessible address."
                }
            ],
            "problemTypes": [
                {
                    "descriptions": [
                        {
                            "lang": "en",
                            "description": "Missing Authentication for Critical Function",
                            "cweId": "CWE-306",
                            "type": "CWE"
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            "affected": [
                {
                    "vendor": "knowns-dev",
                    "product": "knowns",
                    "defaultStatus": "unaffected",
                    "packageURL": "pkg:npm/knowns",
                    "versions": [
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                            "version": "0",
                            "status": "affected",
                            "versionType": "semver",
                            "lessThan": "0.30.0"
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                        "attackVector": "NETWORK",
                        "attackComplexity": "LOW",
                        "attackRequirements": "NONE",
                        "privilegesRequired": "NONE",
                        "userInteraction": "NONE",
                        "vulnConfidentialityImpact": "HIGH",
                        "vulnIntegrityImpact": "HIGH",
                        "vulnAvailabilityImpact": "HIGH",
                        "subConfidentialityImpact": "NONE",
                        "subIntegrityImpact": "NONE",
                        "subAvailabilityImpact": "NONE",
                        "baseScore": 9.3,
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                        "userInteraction": "NONE",
                        "scope": "UNCHANGED",
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                        "integrityImpact": "HIGH",
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            ],
            "references": [
                {
                    "url": "https://github.com/knowns-dev/knowns/security/advisories/GHSA-fc85-99vc-9c75",
                    "tags": [
                        "vendor-advisory"
                    ],
                    "name": "GitHub Security Advisory (GHSA-fc85-99vc-9c75)"
                },
                {
                    "url": "https://github.com/knowns-dev/knowns/blob/v0.29.1/internal/server/auth.go#L80-L86",
                    "tags": [
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                    "name": "AuthManager.Middleware is a no-op when no password is configured (v0.29.1)"
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                    "url": "https://github.com/knowns-dev/knowns/blob/v0.29.1/internal/cli/browser.go#L193-L200",
                    "tags": [
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                    "name": "Browser listener binds 0.0.0.0 (v0.29.1)"
                },
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                    "url": "https://github.com/knowns-dev/knowns/blob/v0.29.1/internal/server/routes/tunnel.go#L26-L38",
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                    "name": "POST /api/tunnel/start has no authorization check of its own (v0.29.1)"
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                {
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                    "tags": [
                        "patch"
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                    "name": "knowns fix commit 878a02cb7cc1"
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                {
                    "url": "https://github.com/knowns-dev/knowns/releases/tag/v0.30.0",
                    "tags": [
                        "release-notes"
                    ],
                    "name": "knowns v0.30.0 Release Notes"
                },
                {
                    "name": "VulnCheck Advisory: knowns before 0.30.0 Unauthenticated Management API Exposure",
                    "tags": [
                        "third-party-advisory"
                    ],
                    "url": "https://www.vulncheck.com/advisories/knowns-before-0.30.0-unauthenticated-management-api-exposure"
                }
            ],
            "credits": [
                {
                    "lang": "en",
                    "value": "Tong Hoang Gia (uziii2208)",
                    "type": "finder"
                },
                {
                    "lang": "en",
                    "value": "Nguyen Huy Hoang (hoanggxyuuki)",
                    "type": "finder"
                }
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            "x_generator": {
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        "adp": [
            {
                "metrics": [
                    {
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                            "type": "ssvc",
                            "content": {
                                "id": "CVE-2026-86543",
                                "role": "CISA Coordinator",
                                "options": [
                                    {
                                        "Exploitation": "none"
                                    },
                                    {
                                        "Automatable": "yes"
                                    },
                                    {
                                        "Technical Impact": "total"
                                    }
                                ],
                                "version": "2.0.3",
                                "timestamp": "2026-09-14T19:22:17.717841Z"
                            }
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                    }
                ],
                "title": "CISA ADP Vulnrichment",
                "providerMetadata": {
                    "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
                    "shortName": "CISA-ADP",
                    "dateUpdated": "2026-09-14T19:33:06.522Z"
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}