CVE-2026-91935 json
Flowise before 3.1.4 SSRF and API Key Exfiltration via Chat Model Nodes
published 2mo ago modified last mo. also EUVD-2026-78793 , GHSA-hx55-h48h-7rw9
Unreviewed: the maintainers' own advisory
Published by the maintainers on their GitHub repository FlowiseAI/Flowise. GitHub has not reviewed it into the GitHub Advisory Database, so the affected packages and versions are the maintainers' word. Read the full advisory on GitHub.
- cvss
- 8.3
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.4%
- EPSS 0.4% chance of exploitation in 30 days, percentile 33%
- public exploits
- 0
- none known
Summary
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.
Patch / fix
- FlowiseAI Flowise 3.1.4
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- Exploitation
- Proof of concept is public
- Automatable
- no
- Technical impact
- total
- Assessed
- last mo.
Exploit prediction
0.39% chance of exploitation in the next 30 days, higher than 33% of all scored CVEs (FIRST EPSS, 2026-11-11).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.1 | 8.3 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:L |
| CNA | 4.0 | 8.7 | CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:L/SC:N/SI:N/SA:N |
| CNA | 4.0 | 8.7 | CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:L/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X |
Affected products
- FlowiseAI Flowise
Classification
- Weakness
-
- CWE-918 Server-Side Request Forgery
References
-
github.com
/FlowiseAI/Flowise/security/advisories/GHSA-hx55-h48h-7rw9
vendor-advisory, advisory
-
vulncheck.com
/advisories/flowise-before-3.1.4-ssrf-and-api-key-exfiltration-via-chat-model-nodes
third-party-advisory
Sources
- CVE List CVE-2026-91935
- NVD CVE-2026-91935
- Maintainer advisory GHSA-hx55-h48h-7rw9
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.
The maintainers of FlowiseAI/Flowise published their own advisory on GitHub. Reviewed sources take precedence over it.
CPEs and fixed versions use Anchore's correction of NVD's data: Added CPE configurations because not yet analyzed by NVD.