{"dataType": "CVE_RECORD", "dataVersion": "5.2", "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": "2026-09-07T23:03:17.906Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10", "shortName": "VulnCheck", "dateUpdated": "2026-09-07T23:03:17.906Z"}, "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"}]}], "metrics": [{"format": "CVSS", "cvssV4_0": {"version": "4.0", "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"}}, {"format": "CVSS", "cvssV3_1": {"version": "3.1", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N", "attackVector": "NETWORK", "attackComplexity": "LOW", "privilegesRequired": "NONE", "userInteraction": "NONE", "scope": "CHANGED", "confidentialityImpact": "LOW", "integrityImpact": "LOW", "availabilityImpact": "NONE", "baseScore": 7.2, "baseSeverity": "HIGH"}}], "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": ["technical-description"], "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": ["third-party-advisory"], "url": "https://www.vulncheck.com/advisories/knowns-through-0.33.0-server-side-request-forgery-via-embedding-models-endpoint"}], "credits": [{"lang": "en", "value": "Tong Hoang Gia", "type": "reporter"}, {"lang": "en", "value": "Nguyen Huy Hoang", "type": "reporter"}], "x_generator": {"engine": "vulncheck-endgame"}}}}

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