SSRF in Flowiseai Flowise
CVE-2026-91935
Flowise before 3.1.4 fails to validate baseURL parameters in chat-model nodes, allowing authenticated users to redirect requests to arbitrary hosts. Attackers with chatflows:create or chatflows:update permissions can exfiltrate LLM provider API keys by redirecting requests to cloud metadata services or internal hosts.
Vulnerability class: SSRF (Server-Side Request Forgery)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 8.3 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:L.
EPSS exploit prediction
EPSS: 0.004 (32.9th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 33rd percentile — 32.9% 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
Weakness classification (CWE)
References
- github.com/FlowiseAI/Flowise/security/advisories/GHSA-hx55-h48h-7rw9 (vendor-advisory)
- www.vulncheck.com/advisories/flowise-before-3.1.4-ssrf-and-api-key-exfiltration… (third-party-advisory)
Frequently asked questions
- What is CVE-2026-91935?
- CVE-2026-91935 is a high-severity vulnerability in Flowiseai Flowise, classified under Server-Side Request Forgery (SSRF). CVSS score: 8.3/10. Published 2026-09-15.
- How severe is CVE-2026-91935?
- High severity. CVSS v3 base score is 8.3 out of 10.