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.

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)

EPSS: 0.023 (81.5th percentile) — read the EPSS interpretation.

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.

Affected products

Flowiseai Flowise — versions < 3.0.13

Weakness classification (CWE)

CWE-918 — Server-Side Request Forgery (SSRF)

References

security-advisories@github.com (x_refsource_CONFIRM, 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.