CVE-2026-91935Network attack vector

API key exfiltration via unvalidated model baseURL

Published Sep 15, 2026 · Updated Sep 15, 2026

SSRF in Flowise chat-model nodes before 3.1.4 allows remote authenticated users to exfiltrate provider API keys via a crafted baseURL. The nodes accept the baseURL without destination validation and send credential-bearing provider requests to attacker-chosen metadata services or internal hosts. Exploitation requires chatflows:create or chatflows:update permission and exposes credentials carried by the redirected request.

CVSS severityUnavailable
Unscored
EPSS probability0.27%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

SSRF in Flowise chat-model nodes before 3.1.4 allows remote authenticated users to exfiltrate provider API keys via a crafted baseURL. The nodes accept the baseURL without destination validation and send credential-bearing provider requests to attacker-chosen metadata services or internal hosts. Exploitation requires chatflows:create or chatflows:update permission and exposes credentials carried by the redirected request.

The record

CVE
CVE-2026-91935
Published
Sep 15, 2026
Updated
Sep 15, 2026
Vendor
FlowiseAI
Product
Flowise
Classifications
T1552.005
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Sep 15, 2026CVE publishedPublication date reported by the CVE source.
  2. Sep 15, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=0 <3.1.4

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

FlowiseAI · Flowiseversion=0 <3.1.4

Published CVSS scores

No CVSS assessment is available in this record.

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

T1552.005Unsecured Credentials: Cloud Instance Metadata API

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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