Flowise: Public chatflow endpoints return unsanitized flowData including plaintext API keys, passwords, and credential IDs
### Summary
The `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.
### Root Cause
```typescript
// packages/server/src/controllers/chatflows/index.ts:218-220
const chatflow = await chatflowsService.getChatflowById(req.params.id)
if (!chatflow) return res.status(StatusCodes.NOT_FOUND).json(...)
if (chatflow.isPublic) return res.status(StatusCodes.OK).json(chatflow) // ← NO sanitization!
```
### Docker Validation (v3.0.13)
Created public chatflow with credential IDs and passwords in flowData:
```json
{
"flowData": "{\"nodes\":[{\"data\":{\"credential\":\"e92a39bf-...\",\"inputs\":{\"password\":\"sk-supersecretkey123\",\"apiKey\":\"should-not-leak\"}}}]}"
}
```
The `sanitizeFlowDataForPublicEndpoint` function only exists in unreleased HEAD, and even there, only `public-chatbotConfig` calls it — `public-chatflows` never does.
### Impact
- **Credential IDs** leaked — enables OAuth2 token theft chain (Finding 1)
- **Plaintext API keys and passwords** leaked — direct third-party account compromise
- **Node configurations** leaked — reveals internal architecture and endpoint URLs
- Both `public-chatflows` and `public-chatbotConfig` are affected in the released version
### Suggested Fix
Apply sanitization to both public endpoints:
```typescript
const sanitized = sanitizeFlowDataForPublicEndpoint(chatflow)
return res.status(StatusCodes.OK).json(sanitized)
```
Ensure the sanitization function strips all `credential`, `password`, `apiKey`, and `secretKey` fields from `flowData`.
---
## References
- `packages/server/src/controllers/chatflows/index.ts` lines 209-236
- `packages/server/src/utils/sanitizeFlowData.ts` lines 11-34 (exists only in unreleased HEAD)
## Credits
- Shinobi Security -
https://github.com/shinobisecurity