CVE-2026-91938

high

Description

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.

References

https://www.vulncheck.com/advisories/flowise-before-3.1.4-server-side-request-forgery-via-document-loaders

https://github.com/FlowiseAI/Flowise/security/advisories/GHSA-9cvr-5wv9-2gxr

Details

Source: Mitre, NVD

Published: 2026-09-15

Updated: 2026-09-16

Risk Information

CVSS v2

Base Score: 6.8

Vector: CVSS2#AV:N/AC:H/Au:S/C:C/I:C/A:P

Severity: Medium

CVSS v3

Base Score: 7.1

Vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:L

Severity: High

CVSS v4

Base Score: 7.6

Vector: CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:H/VI:H/VA:L/SC:N/SI:N/SA:N

Severity: High

EPSS

EPSS: 0.00348