{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-32128", "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "state": "PUBLISHED", "assignerShortName": "GitHub_M", "dateReserved": "2026-03-10T22:19:36.545Z", "datePublished": "2026-03-11T21:30:26.336Z", "dateUpdated": "2026-03-11T21:30:26.336Z"}, "containers": {"cna": {"title": "FastGPT Python Sandbox Bypass of File-Write Restriction", "problemTypes": [{"descriptions": [{"cweId": "CWE-184", "lang": "en", "description": "CWE-184: Incomplete List of Disallowed Inputs", "type": "CWE"}]}], "metrics": [{"cvssV3_1": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "LOW", "baseScore": 6.3, "baseSeverity": "MEDIUM", "confidentialityImpact": "LOW", "integrityImpact": "LOW", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L", "version": "3.1"}}], "references": [{"name": "https://github.com/labring/FastGPT/security/advisories/GHSA-6hw6-mxrm-v6wj", "tags": ["x_refsource_CONFIRM"], "url": "https://github.com/labring/FastGPT/security/advisories/GHSA-6hw6-mxrm-v6wj"}], "affected": [{"vendor": "labring", "product": "FastGPT", "versions": [{"version": "<= 4.14.7", "status": "affected"}]}], "providerMetadata": {"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "shortName": "GitHub_M", "dateUpdated": "2026-03-11T21:30:26.336Z"}, "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."}], "source": {"advisory": "GHSA-6hw6-mxrm-v6wj", "discovery": "UNKNOWN"}}}}

{}

{"cveTags": [], "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."}], "id": "CVE-2026-32128", "lastModified": "2026-03-11T22:16:32.633", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "LOW", "baseScore": 6.3, "baseSeverity": "MEDIUM", "confidentialityImpact": "LOW", "integrityImpact": "LOW", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L", "version": "3.1"}, "exploitabilityScore": 2.8, "impactScore": 3.4, "source": "security-advisories@github.com", "type": "Secondary"}]}, "published": "2026-03-11T22:16:32.633", "references": [{"source": "security-advisories@github.com", "url": "https://github.com/labring/FastGPT/security/advisories/GHSA-6hw6-mxrm-v6wj"}], "sourceIdentifier": "security-advisories@github.com", "vulnStatus": "Received", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-184"}], "source": "security-advisories@github.com", "type": "Primary"}]}

{}

{}