CVE-2026-41270 json
Flowise: SSRF Protection Bypass via Unprotected Built-in HTTP Modules in Custom Function Sandbox
published 6mo ago modified 14d ago also EUVD-2026-25287 , GHSA-xhmj-rg95-44hv
- cvss
- 7.1
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.2%
- EPSS 0.2% chance of exploitation in 30 days, percentile 14%
- public exploits
- 0
- none known
Summary
Flowise is a drag & drop user interface to build a customized large language model flow. Prior to 3.1.0, a Server-Side Request Forgery (SSRF) protection bypass vulnerability exists in the Custom Function feature. While the application implements SSRF protection via HTTP_DENY_LIST for axios and node-fetch libraries, the built-in Node.js http, https, and net modules are allowed in the NodeVM sandbox without equivalent protection. This allows authenticated users to bypass SSRF controls and access internal network resources (e.g., cloud provider metadata services) This vulnerability is fixed in 3.1.0.
Patch / fix
- npm flowise 3.1.0
- npm flowise-components 3.1.0
- flowiseai flowise 3.1.0
- flowiseai flowise-components 3.1.0
Is CVE-2026-41270 in your dependencies? Fencer shows which of your repositories are affected as soon as an advisory lands, and opens the fix as a pull request.
Check with FencerCISA SSVC
- Exploitation
- Proof of concept is public
- Automatable
- no
- Technical impact
- total
- Assessed
- 6mo ago
Exploit prediction
0.23% chance of exploitation in the next 30 days, higher than 14% of all scored CVEs (FIRST EPSS, 2026-11-09).
Exploits and checks
- github.com https://github.com/FlowiseAI/Flowise/security/advisories/GHSA-xhmj-rg95-44hv referenced PoC, tagged "exploit" by a source, unverified
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.1 | 7.1 | CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:L |
| GitHub | 3.0 | 7.1 | CVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:L |
| NVD | 3.1 | 8.3 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:L |
Affected packages
| ecosystem | package | affected | fixed in |
|---|---|---|---|
| npm | flowise | <3.1.0 |
3.1.0 |
| npm | flowise-components | <3.1.0 |
3.1.0 |
Affected products
- FlowiseAI Flowise
- FlowiseAI flowise-components
Classification
References
-
github.com
/FlowiseAI/Flowise/security/advisories/GHSA-xhmj-rg95-44hv
exploit, web, vendor-advisory
-
nvd.nist.gov
/vuln/detail/CVE-2026-41270
advisory
-
github.com
/FlowiseAI/Flowise
package
Sources
- CVE List CVE-2026-41270
- GitHub Advisory GHSA-xhmj-rg95-44hv
- NVD CVE-2026-41270
Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.
CPEs and fixed versions use Anchore's correction of NVD's data: Added CPE configurations because not yet analyzed by NVD.