Reference page — cumulative record through Sunday, October 4, 2026 UTC. Reference pages update as the archive grows; only dated daily editions are immutable pages of record.

CVE-2026-73483

CVE-2026-73483CRITICAL

FlowiseAI Flowise — Flowise before 3.1.3 Sandbox Escape via Puppeteer

  AV  AC  AT  PR  UI  VC  VI  VA   CVSS    EPSS   %ile   KEV
   N   L   N   L   N   H   H   H    9.4   .0074   53.0     —

AFFECTED
  Product  Versions     Fixed
  Flowise  unspecified  3.1.3
  Flowise  unspecified  3.1.3

TIMELINE
  Aug 12  Reserved by VulnCheck
  Aug 13  Published (CNA: VulnCheck)
  Sep 3   EXPLOIT PUBLISHED — CVE-2026-73483 (FlowiseAI Flowise). Public exploit reference added.

CWE-78 · CNA: VulnCheck · CVSS v4.0 · 2 references · NVD status: Analyzed

Description

Flowise (packages flowise and flowise-components) in versions <= 3.1.2 contain a sandbox escape in the vm2/@flowiseai/nodevm JavaScript sandbox. An authenticated user with access to the /api/v1/node-custom-function endpoint can escape the sandbox by supplying attacker-controlled executablePath and args parameters to puppeteer.launch(), which internally invokes child_process.spawn() outside the sandbox boundary. This allows execution of arbitrary OS commands as the Flowise process user (root in the official Docker image) and arbitrary host file disclosure via Chromium's file:// URL handling. In versions 3.0.8–3.1.2 exploitation requires ALLOW_BUILTIN_DEP=true; earlier versions are exploitable by default. Fixed in 3.1.3.

Lifecycle

Complete event history — 3 events, chronological
Date	Event	Detail
August 12, 2026	Reserved	Reserved by VulnCheck
August 13, 2026	Published	Published (CNA: VulnCheck)
September 3, 2026	EXPLOIT PUBLISHED	EXPLOIT PUBLISHED — CVE-2026-73483 (FlowiseAI Flowise). Public exploit reference added.

Affected

Affected products and packages — 2 rows
Vendor	Product / Package	Ecosystem	Version introduced	Fixed
FlowiseAI	Flowise	—	—	3.1.3
FlowiseAI	Flowise	—	—	3.1.3

Weaknesses

CWE-78

References (2)

https://github.com/FlowiseAI/Flowise/security/advisories/GHSA-9gvv-qjj3-2p6g [Exploit, Mitigation, Vendor Advisory]
https://www.vulncheck.com/advisories/flowise-before-sandbox-escape-via-puppeteer [Third Party Advisory]

Authoritative record: CVE-2026-73483 at cve.org

Vendors: flowiseai

Weaknesses: CWE-78

About this page

This is a reference page, not a dated page of record. It assembles the complete lifecycle of CVE-2026-73483 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 Sunday, October 4, 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.