A AegiFlow
CRITICALCVSS 9.3

GHSA-w5r9-j49j-2m55

Duplicate Advisory : Flowise has arbitrary file access due to missing chat flow id validation

Published
2026-06-26
Modified
2026-11-03
Sources
github-advisory

Summary

### Duplicate Advisory This advisory has been withdrawn because it is a duplicate of GHSA-q67q-549q-p849. This link is maintained to preserve external references. ### Original Description Flowise before 3.0.6 (affected versions 2.2.8 and earlier) contains an arbitrary file access vulnerability due to missing validation that the chatflowId and chatId parameters are UUIDs or numbers in file handling operations. By supplying a path-traversal value (e.g., '../../../../../tmp') as the chatflow id, an unauthenticated attacker can use the /api/v1/chatflows endpoint (via addBase64FilesToStorage) to write arbitrary files, and the /api/v1/get-upload-file and /api/v1/openai-assistants-file/download endpoints (via streamStorageFile) to read arbitrary files. Arbitrary file write may lead to remote code execution.

Affected packages

EcosystemPackageAffected versionsFixed versions
npmflowise—3.0.6

Remediation: Upgrade to 3.0.6 or later.

References

Includes data from the GitHub Advisory Database, licensed under CC-BY 4.0.