{"id":"GHSA-w47f-j8rh-wx87","summary":"Flowise: Public chatflow endpoints return unsanitized flowData including plaintext API keys, passwords, and credential IDs","details":"### Summary\n\nThe `GET /api/v1/public-chatflows/:id` endpoint returns the full chatflow object **without sanitization** for public chatflows. Docker validation revealed this is worse than initially assessed: the `sanitizeFlowDataForPublicEndpoint` function does NOT exist in the released v3.0.13 Docker image. Both `public-chatflows` AND `public-chatbotConfig` return completely raw flowData including credential IDs, plaintext API keys, and password-type fields.\n\n### Root Cause\n\n```typescript\n// packages/server/src/controllers/chatflows/index.ts:218-220\nconst chatflow = await chatflowsService.getChatflowById(req.params.id)\nif (!chatflow) return res.status(StatusCodes.NOT_FOUND).json(...)\nif (chatflow.isPublic) return res.status(StatusCodes.OK).json(chatflow) // ← NO sanitization!\n```\n\n### Docker Validation (v3.0.13)\n\nCreated public chatflow with credential IDs and passwords in flowData:\n```json\n{\n  \"flowData\": \"{\\\"nodes\\\":[{\\\"data\\\":{\\\"credential\\\":\\\"e92a39bf-...\\\",\\\"inputs\\\":{\\\"password\\\":\\\"sk-supersecretkey123\\\",\\\"apiKey\\\":\\\"should-not-leak\\\"}}}]}\"\n}\n```\n\nThe `sanitizeFlowDataForPublicEndpoint` function only exists in unreleased HEAD, and even there, only `public-chatbotConfig` calls it — `public-chatflows` never does.\n\n### Impact\n\n- **Credential IDs** leaked — enables OAuth2 token theft chain (Finding 1)\n- **Plaintext API keys and passwords** leaked — direct third-party account compromise\n- **Node configurations** leaked — reveals internal architecture and endpoint URLs\n- Both `public-chatflows` and `public-chatbotConfig` are affected in the released version\n\n### Suggested Fix\n\nApply sanitization to both public endpoints:\n\n```typescript\nconst sanitized = sanitizeFlowDataForPublicEndpoint(chatflow)\nreturn res.status(StatusCodes.OK).json(sanitized)\n```\n\nEnsure the sanitization function strips all `credential`, `password`, `apiKey`, and `secretKey` fields from `flowData`.\n\n---\n\n## References\n\n- `packages/server/src/controllers/chatflows/index.ts` lines 209-236\n- `packages/server/src/utils/sanitizeFlowData.ts` lines 11-34 (exists only in unreleased HEAD)\n\n## Credits\n- Shinobi Security - https://github.com/shinobisecurity","aliases":["CVE-2026-41278"],"modified":"2026-05-05T16:26:27.717521Z","published":"2026-04-17T21:34:30Z","database_specific":{"github_reviewed_at":"2026-04-17T21:34:30Z","nvd_published_at":"2026-04-23T20:16:16Z","cwe_ids":["CWE-200"],"severity":"HIGH","github_reviewed":true},"references":[{"type":"WEB","url":"https://github.com/FlowiseAI/Flowise/security/advisories/GHSA-w47f-j8rh-wx87"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-41278"},{"type":"PACKAGE","url":"https://github.com/FlowiseAI/Flowise"}],"affected":[{"package":{"name":"flowise","ecosystem":"npm","purl":"pkg:npm/flowise"},"ranges":[{"type":"SEMVER","events":[{"introduced":"0"},{"fixed":"3.1.0"}]}],"database_specific":{"last_known_affected_version_range":"\u003c= 3.0.13","source":"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/04/GHSA-w47f-j8rh-wx87/GHSA-w47f-j8rh-wx87.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N"},{"type":"CVSS_V4","score":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N"}]}