CVE-2026-67621 — Security Box Score

CVE · referencelatest edition

Reference page — cumulative record through Wednesday, August 19, 2026 UTC. Reference pages update as the archive grows; only dated daily editions are immutable pages of record.

CVE-2026-67621HIGH

FlowiseAI Flowise — Flowise 3.1.4 Missing Authorization on Document Store Mutation Endpoints

  AV  AC  AT  PR  UI  VC  VI  VA   CVSS    EPSS   %ile   KEV
   N   L   N   L   N   L   H   L    7.2   .0027   19.9     —

AFFECTED
  Product  Versions     Fixed
  Flowise  unspecified  —

TIMELINE
  Jul 29  Reserved by VulnCheck
  Aug 6   Published (CNA: VulnCheck)
  Aug 7   EXPLOIT PUBLISHED — CVE-2026-67621 (FlowiseAI Flowise). Public exploit reference added.
  Aug 13  EXPLOIT PUBLISHED — CVE-2026-67621 (FlowiseAI Flowise). Public exploit reference added.

CWE-862 · CNA: VulnCheck · CVSS v4.0 · 3 references · NVD status: Received

Description

Flowise through 3.1.4 contains a missing authorization vulnerability that allows authenticated workspace members to perform unauthorized document store operations by accessing unprotected mutation endpoints. Attackers holding only view-level permissions can send direct HTTP requests to the upsert and refresh document store routes to trigger document ingestion, refresh vector database contents, consume embedding API credits, and modify knowledge bases used by downstream chatflows.

Lifecycle

Complete event history — 4 events, chronological
Date	Event	Detail
July 29, 2026	Reserved	Reserved by VulnCheck
August 6, 2026	Published	Published (CNA: VulnCheck)
August 7, 2026	EXPLOIT PUBLISHED	EXPLOIT PUBLISHED — CVE-2026-67621 (FlowiseAI Flowise). Public exploit reference added.
August 13, 2026	EXPLOIT PUBLISHED	EXPLOIT PUBLISHED — CVE-2026-67621 (FlowiseAI Flowise). Public exploit reference added.

Affected

Affected products and packages — 1 row
Vendor	Product / Package	Ecosystem	Version introduced	Fixed
FlowiseAI	Flowise	—	—	—

Weaknesses

CWE-862

References (3)

https://flowiseai.com/sunset [vendor-advisory]
https://github.com/Caycon/cve-advisories/blob/main/2026/Flowise/CVE-2026-67621.md [technical-description, exploit]
https://www.vulncheck.com/advisories/flowise-missing-authorization-on-document-store-mutation-endpoints [third-party-advisory]

Authoritative record: CVE-2026-67621 at cve.org

Vendors: flowiseai

Weaknesses: CWE-862

About this page

This is a reference page, not a dated page of record. It assembles the complete lifecycle of CVE-2026-67621 from the CVE Program record, NVD enrichment, the CISA KEV catalog, EPSS, and OSV advisories. The box score's numbers (CVSS, EPSS, KEV status) are current as of Wednesday, August 19, 2026 UTC and are re-derived as the archive grows; only dated daily editions are immutable pages of record. The authoritative source for this identifier is cve.org.