Security Digest · Vulnerability record
CVE-2026-73483: Flowise NodeVM sandbox escape via puppeteer allowlist - authenticated RCE and arbitrary file read via Chromium
Flowise (packages flowise and flowise-components) in versions
CVSS 9.4 Critical EPSS 0.6% · p49
Should you act?
Critical, preconditions apply
Severe if exploited, but exploitation needs conditions that may not apply to you. This signal is computed from CISA KEV, EPSS and CVSS data; it is not an editorial verdict.
- Not in CISA KEV, but CISA’s SSVC assessment records a public proof-of-concept, so attack code exists.
- EPSS 0.6%, percentile 49: FIRST’s model estimates a 0.6% chance of exploitation activity in the next 30 days, higher than 49% of all scored CVEs (low). EPSS is a probability, not a verdict.
- Needs an account (low (any account)). Exposure depends on who can log in.
- Only applies if your dependency tree includes
flowise(npm) <= 3.1.2, fixed in 3.1.3;flowise-components(npm) <= 3.1.2, fixed in 3.1.3. Check your lockfile, including transitive dependencies.
What it is
Flowise (packages flowise and flowise-components) in versions
From the GitHub advisory
Flowise (packages flowise and flowise-components) in versions
Weakness type: CWE-78.
Product: flowise (npm) · Assigned by: VulnCheck · Published: 2026-08-13
Affected and fixed versions
| Ecosystem | Package | Vulnerable | First fixed |
|---|---|---|---|
| npm | flowise | <= 3.1.2 | 3.1.3 |
| npm | flowise-components | <= 3.1.2 | 3.1.3 |
| Vendor | Product | Affected versions (per CVE record) |
|---|---|---|
| FlowiseAI | Flowise | < 3.1.3 |
| FlowiseAI | Flowise | < 3.1.3 |
Severity scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| VulnCheck | 4.0 | 9.4 Critical | CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H |
| GitHub | 4.0 | 9.4 | CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H |
- Attack vector: network (remotely reachable)
- Attack complexity: low
- Attack requirements: none
- Privileges required: low (any account)
- User interaction: none
CVSS measures how bad a flaw is if exploited, not how likely exploitation is. Read it next to the exploitation data below.
Exploitation and urgency
- CISA KEV: not listed (no confirmed in-the-wild exploitation known to CISA).
- CISA SSVC assessment: exploitation poc, automatable yes, technical impact total.
- FIRST EPSS (model of 2026-10-21): 0.62% probability of exploitation activity in the next 30 days; percentile 49.
Timeline
- — CVE record published by VulnCheck
- — CVE record last updated
- — GitHub-reviewed advisory GHSA-9gvv-qjj3-2p6g published (critical)
Sources and references
Original sources first. Version and fix details should always be confirmed against the vendor or project advisory.
Vendor and project advisories, patches
Vulnerability records
- GitHub Advisory GHSA-9gvv-qjj3-2p6g github.com
- CVE.org record CVE-2026-73483 cve.org
- NVD entry CVE-2026-73483 nvd.nist.gov