CVE-2026-91938

Flowise before 3.1.4 Server-Side Request Forgery via document loaders

7.6 High

Flowise versions before 3.1.4 contain a server-side request forgery vulnerability in Cheerio, Playwright, and Puppeteer document loader nodes that bypass SSRF protection. Attackers can provide arbitrary URLs to fetch cloud metadata, internal services, and private network resources with response content returned as document text.

Attack profile

How easy it is to exploit

Attack vector: Network
Complexity: Low
Privileges needed: Low
User interaction: None

What an attacker can affect

Confidentiality: High
Integrity: High
Availability: Low

Exploit likelihood

0.37%Unchanged since Sep 16, 2026

What each source reports

CVE List Score used 7.6

Flowise before 3.1.4 Server-Side Request Forgery via document loaders

Record: CVE-2026-91938
CVSS 4.0: 7.6 HighCVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:H/VI:H/VA:L/SC:N/SI:N/SA:N
CVSS 3.1: 7.1 HighCVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:L
Weakness: CWE-918
Updated: 2026-11-02

EUVDEUVD-2026-78796 7.6

Record: EUVD-2026-78796
CVSS 4.0: 7.6 HighCVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:H/VI:H/VA:L/SC:N/SI:N/SA:N
Updated: 2026-11-02

GitHub AdvisoriesGHSA-j6jh-78h2-2667 7.6

Flowise versions before 3.1.4 contain a server-side request forgery vulnerability in Cheerio,...

Record: GHSA-j6jh-78h2-2667
CVSS 4.0: 7.6 HighCVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:H/VI:H/VA:L/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
CVSS 3.1: 7.1 HighCVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:L
Weakness: CWE-918
Updated: 2026-11-02

NVD 7.6

Record: CVE-2026-91938
CVSS 4.0: 7.6 HighCVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:H/VI:H/VA:L/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
CVSS 3.1: 7.1 HighCVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:L
Weakness: CWE-918
Updated: 2026-11-02

OSV 7.6

Flowise before 3.1.4 Server-Side Request Forgery via document loaders

Record: CVE-2026-91938
CVSS 4.0: 7.6 HighCVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:H/VI:H/VA:L/SC:N/SI:N/SA:N
Weakness: CWE-918
Updated: 2026-11-02

Affected products

flowiseai flowise

History

History
Recorded	Changed	Sources
Nov 2, 2026	first indexed	CVE List, EUVD, GitHub Advisories, NVD, OSV

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2026-91938 is a high vulnerability (CVSS 7.6) in Flowiseai Flowise, published September 15, 2026. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.37%, the 31st percentile. No source names a fixed version.