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    "cveMetadata": {
        "cveId": "CVE-2026-86539",
        "assignerOrgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10",
        "state": "PUBLISHED",
        "assignerShortName": "VulnCheck",
        "dateReserved": "2026-09-07T22:18:47.365Z",
        "datePublished": "2026-09-07T23:03:17.906Z",
        "dateUpdated": "2026-09-24T14:21:23.058Z"
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                "dateUpdated": "2026-09-24T14:21:23.058Z"
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            "datePublic": "2026-08-16T00:00:00.000Z",
            "title": "knowns through 0.33.0 Server-Side Request Forgery via embedding-models endpoint",
            "descriptions": [
                {
                    "lang": "en",
                    "value": "knowns through 0.33.0 contains a server-side request forgery vulnerability in the POST /api/embedding-models/test endpoint that issues outbound requests to caller-supplied destinations without validation. Attackers can enumerate internal hosts and cloud metadata endpoints by observing transport error messages that reveal network reachability information."
                }
            ],
            "problemTypes": [
                {
                    "descriptions": [
                        {
                            "lang": "en",
                            "description": "Server-Side Request Forgery (SSRF)",
                            "cweId": "CWE-918",
                            "type": "CWE"
                        }
                    ]
                }
            ],
            "affected": [
                {
                    "vendor": "knowns-dev",
                    "product": "knowns",
                    "defaultStatus": "unaffected",
                    "packageURL": "pkg:npm/knowns",
                    "versions": [
                        {
                            "version": "0",
                            "status": "affected",
                            "versionType": "semver",
                            "lessThanOrEqual": "0.33.0"
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                        "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:N/SC:L/SI:L/SA:N",
                        "attackVector": "NETWORK",
                        "attackComplexity": "LOW",
                        "attackRequirements": "NONE",
                        "privilegesRequired": "NONE",
                        "userInteraction": "NONE",
                        "vulnConfidentialityImpact": "LOW",
                        "vulnIntegrityImpact": "LOW",
                        "vulnAvailabilityImpact": "NONE",
                        "subConfidentialityImpact": "LOW",
                        "subIntegrityImpact": "LOW",
                        "subAvailabilityImpact": "NONE",
                        "baseScore": 6.9,
                        "baseSeverity": "MEDIUM"
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                        "privilegesRequired": "NONE",
                        "userInteraction": "NONE",
                        "scope": "CHANGED",
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                        "integrityImpact": "LOW",
                        "availabilityImpact": "NONE",
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            ],
            "references": [
                {
                    "url": "https://github.com/knowns-dev/knowns/security/advisories/GHSA-qx9v-m9gg-p5jg",
                    "tags": [
                        "vendor-advisory"
                    ],
                    "name": "GitHub Security Advisory (GHSA-qx9v-m9gg-p5jg)"
                },
                {
                    "url": "https://github.com/knowns-dev/knowns/blob/v0.33.0/internal/server/routes/embedding_models.go#L64-L110",
                    "tags": [
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                    ],
                    "name": "Embedding-model test issues request to caller-supplied apiBase and returns the transport error (v0.33.0, unfixed)"
                },
                {
                    "url": "https://github.com/knowns-dev/knowns/blob/v0.33.0/internal/server/routes/imports.go#L317-L330",
                    "tags": [
                        "technical-description"
                    ],
                    "name": "gitLsRemoteHead runs git ls-remote against a caller-supplied URL (v0.33.0, unfixed)"
                },
                {
                    "name": "VulnCheck Advisory: knowns through 0.33.0 Server-Side Request Forgery via embedding-models endpoint",
                    "tags": [
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                    "url": "https://www.vulncheck.com/advisories/knowns-through-0.33.0-server-side-request-forgery-via-embedding-models-endpoint"
                }
            ],
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                {
                    "lang": "en",
                    "value": "Tong Hoang Gia (uziii2208)",
                    "type": "finder"
                },
                {
                    "lang": "en",
                    "value": "Nguyen Huy Hoang (hoanggxyuuki)",
                    "type": "finder"
                }
            ],
            "x_generator": {
                "engine": "vulncheck-endgame"
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        },
        "adp": [
            {
                "metrics": [
                    {
                        "other": {
                            "type": "ssvc",
                            "content": {
                                "timestamp": "2026-09-09T14:52:03.550890Z",
                                "id": "CVE-2026-86539",
                                "options": [
                                    {
                                        "Exploitation": "none"
                                    },
                                    {
                                        "Automatable": "yes"
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                                        "Technical Impact": "partial"
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                                "role": "CISA Coordinator",
                                "version": "2.0.3"
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                "title": "CISA ADP Vulnrichment",
                "providerMetadata": {
                    "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
                    "shortName": "CISA-ADP",
                    "dateUpdated": "2026-09-09T14:52:17.450Z"
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}