Advisory details:
github_osv / GHSA-w47f-j8rh-wx87
| Advisory ID | github_osv/GHSA-w47f-j8rh-wx87 |
| Aliases |
CVE-2026-41278
|
| Summary | 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 |
| Status | Published |
| Exploitability | 0.5 |
| Weighted Severity | 7.8 |
| Risk | 3.9 |
| Affected and Fixed Packages | Package Details |
| Introduced and Fixed Package Commit Patches | Package Commit Patches Details |
| System | Score | Found at |
|---|---|---|
| cvssv3.1 | 7.5 | https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/04/GHSA-w47f-j8rh-wx87/GHSA-w47f-j8rh-wx87.json |
| cvssv4 | 8.7 | https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/04/GHSA-w47f-j8rh-wx87/GHSA-w47f-j8rh-wx87.json |
| generic_textual | HIGH |
| Reference id | Reference type | URL |
|---|---|---|
| https://github.com/FlowiseAI/Flowise | ||
| https://github.com/FlowiseAI/Flowise/security/advisories/GHSA-w47f-j8rh-wx87 | ||
| CVE-2026-41278 | https://nvd.nist.gov/vuln/detail/CVE-2026-41278 |
No EPSS data available for this advisory.
| Patch URL | |
|---|---|
| There are no known patches. | |
| Attack Vector (AV) | Attack Complexity (AC) | Privileges Required (PR) | User Interaction (UI) | Scope (S) | Confidentiality Impact (C) | Integrity Impact (I) | Availability Impact (A) |
|---|---|---|---|---|---|---|---|
network adjacent_network local physical |
low high |
none low high |
none required |
unchanged changed |
high low none |
high low none |
high low none |
| Attack Vector (AV) | Attack Complexity (AC) | Attack Requirements (AT) | Privileges Required (PR) | User Interaction (UI) | Vulnerable System Impact Confidentiality (VC) | Vulnerable System Impact Integrity (VI) | Vulnerable System Impact Availability (VA) | Subsequent System Impact Confidentiality (SC) | Subsequent System Impact Integrity (SI) | Subsequent System Impact Availability (SA) |
|---|---|---|---|---|---|---|---|---|---|---|
network adjacent local physical |
low high |
none present |
none low high |
none passive active |
high low none |
high low none |
high low none |
high low none |
high low none |
high low none |
Vector: SSVCv2/E:N/A:Y/T:P/P:M/B:A/M:M/D:T/2026-04-24T13:39:44Z/
Decision: Track
Source URL: https://github.com/cisagov/vulnrichment/blob/develop/2026/41xxx/CVE-2026-41278.json
Source Advisory: vulnrichment/CVE-2026-41278
[{'Exploitation': 'none'},
{'Automatable': 'yes'},
{'Technical Impact': 'partial'},
{'Mission Prevalence': 'minimal'},
{'Public Well-being Impact': 'material'},
{'Mission & Well-being': 'medium'}]