High severity8.1NVD Advisory· Published Apr 23, 2026· Updated Apr 24, 2026
CVE-2026-41267
CVE-2026-41267
Description
Flowise is a drag & drop user interface to build a customized large language model flow. Prior to 3.1.0, an improper mass assignment (JSON injection) vulnerability in the account registration endpoint of Flowise Cloud allows unauthenticated attackers to inject server-managed fields and nested objects during account creation. This enables client-controlled manipulation of ownership metadata, timestamps, organization association, and role mappings, breaking trust boundaries in a multi-tenant environment. This vulnerability is fixed in 3.1.0.
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Affected packages
Versions sourced from the GitHub Security Advisory.
| Package | Affected versions | Patched versions |
|---|---|---|
flowisenpm | < 3.1.0 | 3.1.0 |
Affected products
2Patches
Vulnerability mechanics
References
3- github.com/FlowiseAI/Flowise/security/advisories/GHSA-48m6-ch88-55mjnvdExploitVendor AdvisoryWEB
- github.com/advisories/GHSA-48m6-ch88-55mjghsaADVISORY
- nvd.nist.gov/vuln/detail/CVE-2026-41267ghsaADVISORY
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