HighVulnerabilityLLM-specific

CVE-2026-46477: Flowise dataset mass-assignment allows cross-workspace takeover

Source: NVD(opens in a new tab)
Identifier: CVE-2026-46477
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-2026-46477 affects Flowise, a drag and drop user interface for building customized large language model flows. Prior to version 3.1.2, dataset create and update mass-assignment allows cross-workspace dataset takeover. The issue is classified as CWE-915, Improperly Controlled Modification of Dynamically-Determined Object Attributes, with a GitHub CVSS 4.0 base score of 7.7 (HIGH) and vector CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N.

Mitigation

Fixed 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
Labels: security

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-2026-46477

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