HighVulnerabilityLLM-specific

CVE-2026-46476: Flowise mass-assignment flaw enables cross-workspace template takeover

Source: NVD(opens in a new tab)
Identifier: CVE-2026-46476
Published: June 8, 2026
Record updated: October 9, 2026

Affected: flowise <= 3.1.1
Fixed in: 3.1.2
released April 14, 2026, 55 days before disclosure
Known exploitation: Not listed in the CISA Known Exploited Vulnerabilities catalog at the last check.
EPSS: 0.3%

Summary

CVE-2026-46476 affects Flowise, a drag and drop user interface for building customized large language model flows, prior to version 3.1.2. The CustomTemplate create and update operations suffer from mass-assignment (CWE-915), which allows cross-workspace template takeover. The CNA, GitHub, Inc., rates it CVSS 4.0 7.7 HIGH, with network attack vector and low privileges required.

Mitigation

This issue has been patched in version 3.1.2.

Details

Scores and exploitation

Patch available: Yes
EPSS: 0.3%Estimated probability that this CVE is exploited in the next 30 days, from the FIRST Exploit Prediction Scoring System. Read on November 4, 2026.
Disclosure date: June 8, 2026

Weaknesses and techniques

Weakness (CWE): CWE-915

Affected

Packages: flowise@<= 3.1.1 (fixed: 3.1.2)

Classification

Attack type: Other
Attack sophistication: Moderate
AI component targeted: Framework
Impact: Confidentiality,
Integrity,
Availability
Labels: security,
industry

How this record was produced

Summaries, mitigations and labels on this page are generated automatically from the source. The linked source is authoritative. The source gives this advisory a description and no title, so the title above is a headline generated from the source text.

Original source: https://nvd.nist.gov/vuln/detail/CVE-2026-46476

First tracked: June 9, 2026 at 08:09 AM ET, from NVD/CVE Database

Classifier: claude-haiku-5-5, prompt v4

Classifier confidence: 90% (self-assessed)

Affected packages in the Exposure Registry

Matched by package name and ecosystem. Each entry shows whether the package delegates to a language model and how many tracked packages depend on it.

flowisenpmLLM dependency since 2024-03-12

Summary

Mitigation

Affected packages in the Exposure Registry

Related items