CVE-2026-42861
Description
Flowise is a drag & drop user interface to build a customized large language model flow. Prior to version 3.1.2, a mass assignment vulnerability exists in the variable update endpoint of FlowiseAI. The endpoint allows authenticated users to modify server-controlled properties such as workspaceId, createdDate, and updatedDate when updating a variable resource. Due to missing server-side validation and authorization checks, an attacker can manipulate the workspaceId field and reassign variables to arbitrary workspaces. This behavior may break tenant isolation in multi-workspace environments. This issue has been patched in version 3.1.2.
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Affected packages
Versions sourced from the GitHub Security Advisory.
| Package | Affected versions | Patched versions |
|---|---|---|
flowisenpm | < 3.1.2 | 3.1.2 |
Affected products
2Patches
Vulnerability mechanics
References
4- github.com/FlowiseAI/Flowise/security/advisories/GHSA-6fw7-3q8r-m5vjnvdExploitVendor AdvisoryWEB
- github.com/advisories/GHSA-6fw7-3q8r-m5vjghsaADVISORY
- nvd.nist.gov/vuln/detail/CVE-2026-42861ghsaADVISORY
- github.com/FlowiseAI/Flowise/releases/tag/flowise%403.1.2nvdProductRelease NotesWEB
News mentions
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