CVE-2026-32128

{"id": "CVE-2026-32128", "cveTags": [], "metrics": {"cvssMetricV31": [{"type": "Secondary", "source": "security-advisories@github.com", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 6.3, "attackVector": "NETWORK", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L", "integrityImpact": "LOW", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "LOW", "privilegesRequired": "LOW", "confidentialityImpact": "LOW"}, "impactScore": 3.4, "exploitabilityScore": 2.8}]}, "published": "2026-03-11T22:16:32.633", "references": [{"url": "https://github.com/labring/FastGPT/security/advisories/GHSA-6hw6-mxrm-v6wj", "tags": ["Vendor Advisory", "Exploit", "Mitigation"], "source": "security-advisories@github.com"}], "vulnStatus": "Analyzed", "weaknesses": [{"type": "Primary", "source": "security-advisories@github.com", "description": [{"lang": "en", "value": "CWE-184"}]}], "descriptions": [{"lang": "en", "value": "FastGPT is an AI Agent building platform. In 4.14.7 and earlier, FastGPT's Python Sandbox (fastgpt-sandbox) includes guardrails intended to prevent file writes (static detection + seccomp). These guardrails are bypassable by remapping stdout (fd 1) to an arbitrary writable file descriptor using fcntl. After remapping, writing via sys.stdout.write() still satisfies the seccomp rule write(fd==1), enabling arbitrary file creation/overwrite inside the sandbox container despite the intended no file writes restriction."}, {"lang": "es", "value": "FastGPT es una plataforma de creaci\u00f3n de agentes de IA. En 4.14.7 y versiones anteriores, el sandbox de Python de FastGPT (fastgpt-sandbox) incluye barreras de seguridad destinadas a prevenir escrituras de archivos (detecci\u00f3n est\u00e1tica + seccomp). Estas barreras de seguridad son eludibles reasignando stdout (fd 1) a un descriptor de archivo arbitrario con permisos de escritura usando fcntl. Despu\u00e9s de la reasignaci\u00f3n, la escritura a trav\u00e9s de sys.stdout.write() a\u00fan satisface la regla de seccomp write(fd==1), lo que permite la creaci\u00f3n/sobrescritura arbitraria de archivos dentro del contenedor del sandbox a pesar de la restricci\u00f3n intencionada de no escritura de archivos."}], "lastModified": "2026-03-19T17:38:40.920", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:fastgpt:fastgpt:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "EE37BFC6-6051-4C66-AED8-9F7F80DC3EE6", "versionEndIncluding": "4.14.7"}], "operator": "OR"}]}], "sourceIdentifier": "security-advisories@github.com"}