Improperly Controlled Modification of Dynamically-Determined Object Attributes Affecting flowise package, versions <3.1.2
Threat Intelligence
Snyk has a proof-of-concept or detailed explanation of how to exploit this vulnerability.
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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- published18 May 2026
- disclosed14 May 2026
- creditBerk Dedekargınoğlu
Introduced: 14 May 2026
CVE-2026-42861 (opens in a new tab)How to fix?
Upgrade flowise to version 3.1.2 or higher.
Overview
flowise is a Flowiseai Server
Affected versions of this package are vulnerable to Improperly Controlled Modification of Dynamically-Determined Object Attributes via the /api/v1/variables endpoint. A user can modify internal attributes such as workspaceId, createdDate, and updatedDate by including them in the request body, resulting in unauthorized reassignment of resources across workspaces and potential bypass of tenant isolation in multi-workspace environments.