Path Traversal in FlowiseAI Flowise S3 Doc Loader before 3.1.2
CVE-2026-12821 Published on June 21, 2026
FlowiseAI Flowise S3 Document Loader S3.ts path traversal
A vulnerability was determined in FlowiseAI Flowise up to 3.1.2. The impacted element is an unknown function of the file packages/components/nodes/documentloaders/S3/S3.ts of the component S3 Document Loader. Executing a manipulation can lead to path traversal. It is possible to launch the attack remotely. The vendor was contacted early about this disclosure but did not respond in any way.
Timeline
Advisory disclosed
VulDB entry created
VulDB entry last update
Weakness Type
What is a Directory traversal Vulnerability?
The software uses external input to construct a pathname that is intended to identify a file or directory that is located underneath a restricted parent directory, but the software does not properly neutralize special elements within the pathname that can cause the pathname to resolve to a location that is outside of the restricted directory.
CVE-2026-12821 has been classified to as a Directory traversal vulnerability or weakness.
Products Associated with CVE-2026-12821
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Affected Versions
FlowiseAI Flowise:- Version 3.1.0 is affected.
- Version 3.1.1 is affected.
- Version 3.1.2 is affected.