CVE-2026-72771Network attack vectorHinoki check available

Credential exfiltration via unenforced AI node allowlist

Published Aug 11, 2026 · Updated Aug 11, 2026

Incorrect authorization in n8n before 2.32.1 allows remote authenticated users to exfiltrate shared credential secrets through AI/LLM nodes. The affected nodes accept user-controlled base or endpoint URLs and send credential-bearing requests without applying the credential's domain allowlist. Exploitation requires workflow-editing rights plus use-only access to a shared, domain-restricted credential, exposing that secret for reuse against its underlying service.

CVSS severity7.1
High
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 n8n before 2.32.1 allows remote authenticated users to exfiltrate shared credential secrets through AI/LLM nodes. The affected nodes accept user-controlled base or endpoint URLs and send credential-bearing requests without applying the credential's domain allowlist. Exploitation requires workflow-editing rights plus use-only access to a shared, domain-restricted credential, exposing that secret for reuse against its underlying service.

The record

CVE
CVE-2026-72771
Published
Aug 11, 2026
Updated
Aug 11, 2026
Vendor
n8n
Product
n8n
Classifications
CWE-863, T1555
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Aug 11, 2026CVE publishedPublication date reported by the CVE source.
  2. Aug 11, 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 <2.31.5
  2. Affected versionversion=0 <2.32.1

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

n8n · n8nversion=0 <2.31.5; version=0 <2.32.1

Published CVSS scores

7.1VulnCheckCVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:L/SI:N/SA:N

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.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

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

CWE-863Incorrect Authorization
T1555Credentials from Password Stores

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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