CVE-2026-5027

{"id": "CVE-2026-5027", "cveTags": [], "metrics": {"ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-5027", "role": "CISA Coordinator", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "total"}], "version": "2.0.3", "timestamp": "2026-03-27T15:11:19.967941Z"}}], "cvssMetricV31": [{"type": "Secondary", "source": "vulnreport@tenable.com", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 8.8, "attackVector": "NETWORK", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "integrityImpact": "HIGH", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "LOW", "confidentialityImpact": "HIGH"}, "impactScore": 5.9, "exploitabilityScore": 2.8}]}, "affected": [{"source": "vulnreport@tenable.com", "affectedData": [{"repo": "https://github.com/langflow-ai/langflow", "vendor": "langflow-ai", "product": "langflow", "versions": [{"status": "affected", "version": "0", "versionType": "custom"}], "defaultStatus": "unaffected"}]}], "published": "2026-03-27T15:17:04.743", "references": [{"url": "https://www.tenable.com/security/research/tra-2026-26", "tags": ["Vendor Advisory", "Third Party Advisory"], "source": "vulnreport@tenable.com"}], "vulnStatus": "Analyzed", "weaknesses": [{"type": "Secondary", "source": "vulnreport@tenable.com", "description": [{"lang": "en", "value": "CWE-22"}]}], "descriptions": [{"lang": "en", "value": "The 'POST /api/v2/files' endpoint does not sanitize the 'filename' parameter from the multipart form data, allowing an attacker to write files to arbitrary locations on the filesystem using path traversal sequences ('../')."}], "lastModified": "2026-08-18T18:00:03.020", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:langflow:langflow:*:-:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "668511F2-358C-4160-8855-2DA84013DA2C", "versionEndExcluding": "1.9.0"}], "operator": "OR"}]}], "sourceIdentifier": "vulnreport@tenable.com"}