CVE-2026-90534Network attack vectorHinoki check available

Cross-workspace provider calls via unscoped credential lookup

Published Sep 12, 2026 · Updated Sep 12, 2026

Incorrect authorization in Flowise 3.1.3 and earlier allows remote authenticated users to access cross-workspace provider metadata. The node-load-method route accepts a caller-selected credential ID, and getCredentialData decrypts the matching record without checking its workspace before invoking a component load method. A low-privilege account or workspace API key can make provider calls with another workspace's credential and read returned metadata, but the credential secret itself is not returned.

CVSS severityUnavailable
Unscored
EPSS probability0.21%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkAvailable
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Summary

What happened

Incorrect authorization in Flowise 3.1.3 and earlier allows remote authenticated users to access cross-workspace provider metadata. The node-load-method route accepts a caller-selected credential ID, and getCredentialData decrypts the matching record without checking its workspace before invoking a component load method. A low-privilege account or workspace API key can make provider calls with another workspace's credential and read returned metadata, but the credential secret itself is not returned.

The record

CVE
CVE-2026-90534
Published
Sep 12, 2026
Updated
Sep 12, 2026
Vendor
FlowiseAI
Product
Flowise
Classifications
T1526
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Sep 12, 2026CVE publishedPublication date reported by the CVE source.
  2. Sep 12, 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?

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  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 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

T1526Cloud Service Discovery

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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