CVE-2026-27966

{"id": "CVE-2026-27966", "cveTags": [], "metrics": {"cvssMetricV31": [{"type": "Secondary", "source": "security-advisories@github.com", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 9.8, "attackVector": "NETWORK", "baseSeverity": "CRITICAL", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H", "integrityImpact": "HIGH", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "NONE", "confidentialityImpact": "HIGH"}, "impactScore": 5.9, "exploitabilityScore": 3.9}]}, "published": "2026-02-26T02:16:23.833", "references": [{"url": "https://github.com/langflow-ai/langflow/commit/d8c6480daa17b2f2af0b5470cdf5c3d28dc9e508", "tags": ["Patch"], "source": "security-advisories@github.com"}, {"url": "https://github.com/langflow-ai/langflow/security/advisories/GHSA-3645-fxcv-hqr4", "tags": ["Exploit", "Vendor Advisory"], "source": "security-advisories@github.com"}], "vulnStatus": "Analyzed", "weaknesses": [{"type": "Secondary", "source": "security-advisories@github.com", "description": [{"lang": "en", "value": "CWE-94"}]}], "descriptions": [{"lang": "en", "value": "Langflow is a tool for building and deploying AI-powered agents and workflows. Prior to version 1.8.0, the CSV Agent node in Langflow hardcodes `allow_dangerous_code=True`, which automatically exposes LangChain\u2019s Python REPL tool (`python_repl_ast`). As a result, an attacker can execute arbitrary Python and OS commands on the server via prompt injection, leading to full Remote Code Execution (RCE). Version 1.8.0 fixes the issue."}, {"lang": "es", "value": "Langflow es una herramienta para construir y desplegar agentes y flujos de trabajo impulsados por IA. Antes de la versi\u00f3n 1.8.0, el nodo CSV Agent en Langflow codifica de forma r\u00edgida 'allow_dangerous_code=True', lo que expone autom\u00e1ticamente la herramienta Python REPL de LangChain ('python_repl_ast'). Como resultado, un atacante puede ejecutar comandos arbitrarios de Python y del sistema operativo en el servidor a trav\u00e9s de inyecci\u00f3n de prompts, lo que lleva a una ejecuci\u00f3n remota de c\u00f3digo (RCE) completa. La versi\u00f3n 1.8.0 soluciona el problema."}], "lastModified": "2026-02-28T00:54:27.840", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:langflow:langflow:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "2F2C3DDC-4ECF-4814-AC58-D3D09E54D9B2", "versionEndExcluding": "1.8.0"}], "operator": "OR"}]}], "sourceIdentifier": "security-advisories@github.com"}