SSRF in Flowiseai Flowise
CVE-2026-31829
Flowise is a drag & drop user interface to build a customized large language model flow. Prior to 3.0.13, Flowise exposes an HTTP Node in AgentFlow and Chatflow that performs server-side HTTP requests using user-controlled URLs. By default, there are no restrictions on target hosts, including private/internal IP ranges (RFC 1918), localhost, or cloud metadata endpoints. This enables Server-Side Request Forgery (SSRF), allowing any user interacting with a publicly exposed chatflow to force the Flowise server to make requests to internal network resources that are inaccessible from the public internet. This vulnerability is fixed in 3.0.13.
Vulnerability class: SSRF (Server-Side Request Forgery)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.1 (High). Vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:L.
EPSS exploit prediction
EPSS: 0.004 (29.3th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 29th percentile — 29.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.023 · newest: 0.004 · change: -0.019
Affected products
- Flowiseai Flowise — versions < 3.0.13
Weakness classification (CWE)
References
- github.com/FlowiseAI/Flowise/security/advisories/GHSA-fvcw-9w9r-pxc7 (Exploit, Mitigation, Vendor Advisory)
Frequently asked questions
- What is CVE-2026-31829?
- CVE-2026-31829 is a high-severity vulnerability in Flowiseai Flowise, classified under Server-Side Request Forgery (SSRF). CVSS score: 7.1/10. Published 2026-03-10.
- How severe is CVE-2026-31829?
- High severity. CVSS v3 base score is 7.1 out of 10.