PT-2026-51263 · Flowiseai · Flowise

St4R · Published 2026-06-21 · Updated 2026-06-22 · CVE-2026-12821

NVD

CVSS v2.0

6.5

Medium

Base vector

AV:N/AC:L/Au:S/C:P/I:P/A:P

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.

Fix

Path traversal

Weakness Enumeration

CWE-22

Related Identifiers

CVE-2026-12821

Affected Products

Flowise

References · 6

• https://nvd.nist.gov/vuln/detail/CVE-2026-12821 · Security Note
• https://vuldb.com/vuln/372611/cti · Note
• https://github.com/dxz0069/softwareoverflow/blob/main/flowise_s3_loader_object_key_path_traversal_vulndb.md · Note
• https://vuldb.com/vuln/372611 · Note
• https://vuldb.com/cve/CVE-2026-12821 · Note
• https://vuldb.com/submit/837578 · Note