GHSA-wvhq-wp8g-c7vq: Flowise has Authorization Bypass via Spoofed x-request-from Header
- Identifiers
- CVE-2026-30820GHSA-wvhq-wp8g-c7vq
- Published
- Record updated
- Affected
- flowise <= 3.0.12
- Fixed in
- 3.0.13
- released February 3, 2026, 31 days before disclosure
- Known exploitation
- Not listed in the CISA Known Exploited Vulnerabilities catalog at the last check.
- EPSS
- 0.5%
Summary
Flowise trusts any HTTP client that sends the header `x-request-from: internal`, so an authenticated tenant session with only a browser cookie can bypass the authorization checks on `/api/v1/**`. The flaw sits in the global middleware at `external/Flowise/packages/server/src/index.ts:214`, which calls `verifyToken` for that header and runs no further permission checks. The source says the bypass grants access to internal administration endpoints such as `/api/v1/apikey`, `/api/v1/credentials`, `/api/v1/tools` and `/api/v1/node-custom-function`, and that all self-hosted Flowise 3.0.8 deployments using the default middleware are affected.
Mitigation
The source does not state a fix yet. Check the original advisory for updates.
Affected packages in the Exposure Registry
Matched by package name and ecosystem. Each entry shows whether the package delegates to a language model and how many tracked packages depend on it.
- flowisenpmLLM dependency since 2024-03-12
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