What is CVE-2026-90580?

CVE-2026-90580 is a medium-severity vulnerability in Flowiseai Flowise, classified under Server-Side Request Forgery (SSRF). CVSS score: 6.3/10. Published 2026-09-13.

How severe is CVE-2026-90580?

Medium severity. CVSS v3 base score is 6.3 out of 10.

SSRF in Flowiseai Flowise

CVE-2026-90580

A vulnerability was found in FlowiseAI Flowise up to 3.0.2. This vulnerability affects the function axios.post of the file packages/server/src/controllers/evaluations/index.ts of the component Evaluations Endpoint. The manipulation of the argument Host/X-Forwarded-Proto results in server-side request forgery. The attack may be launched remotely. The exploit has been made public and could be used. Upgrading to version 3.1.3 is able to resolve this issue. The patch is identified as 700137738bcaebefd4709021f6d6b0abcd7df0ac. It is recommended to upgrade the affected component. This vulnerability only affects products that are no longer supported by the maintainer.

Vulnerability class: SSRF (Server-Side Request Forgery)

Published 2026-09-13 · last modified 2026-09-16.

CVSS v3 metric

CVSS v3 base score 6.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L.

EPSS exploit prediction

EPSS: 0.004 (35.0th percentile), scored 2026-10-30.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 35th percentile — 35.0% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.004 · newest: 0.004 · change: 0.000

Affected products

Flowiseai Flowise — versions 3.0.0, 3.0.1, 3.0.2

Weakness classification (CWE)

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

References

vuldb.com/vuln/403165 (technical-description, VDB Entry, Third Party Advisory, vdb-entry)
vuldb.com/vuln/403165/cti (signature, Permissions Required, permissions-required)
vuldb.com/cve/CVE-2026-90580 (VDB Entry, Third Party Advisory, third-party-advisory)
vuldb.com/submit/913327 (VDB Entry, Third Party Advisory, third-party-advisory)
github.com/FlowiseAI/Flowise/issues/6687 (issue-tracking, Exploit, exploit, Mitigation, Vendor Advisory)
github.com/FlowiseAI/Flowise/commit/700137738bcaebefd4709021f6d6b0abcd7df0ac (Patch, patch)
github.com/FlowiseAI/Flowise/releases/tag/flowise@3.1.3 (Patch, Release Notes, patch)
github.com/FlowiseAI/Flowise/ (Product, product)

Frequently asked questions

What is CVE-2026-90580?: CVE-2026-90580 is a medium-severity vulnerability in Flowiseai Flowise, classified under Server-Side Request Forgery (SSRF). CVSS score: 6.3/10. Published 2026-09-13.
How severe is CVE-2026-90580?: Medium severity. CVSS v3 base score is 6.3 out of 10.