CVE-2026-91935
CVSS v3
8.3
HIGH
EPSS Score
0.4 %
exploit probability, as of 2026-09-29
CISA KEV
No
known exploited
Exploitation
—
SSVC status
Description
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.
Technical details
- Published
- 2026-09-15
- Last Modified
- 2026-09-16
Frequently asked questions
What is 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.
Is CVE-2026-91935 actively exploited?
Active exploitation of CVE-2026-91935 has not been confirmed. Its EPSS score was 0.4% on 2026-09-29, the estimated probability of exploitation in the next 30 days.
What is the CVSS score for CVE-2026-91935?
CVE-2026-91935 has a CVSS v3 base score of 8.3 (HIGH severity).
Is CVE-2026-91935 affecting your environment?
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