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Back to active CVEs
Medium · CVSS 5.1CVE-2026-77081

n8n before 1.123.69 Allowed-Domains Bypass via GraphQL NodeCVE-2026-77081

Answer in brief

CVE-2026-77081 records a Medium severity (CVSS 5.1) vulnerability in n8n before 1.123.69 Allowed-Domains Bypass via GraphQL Node. The current sources do not mark it as known exploited. The current feed maps n8n-io/n8n (generic), n8n-io/n8n (generic), n8n-io/n8n (generic), n8n-io/n8n (generic) and additional mapped packages. Check affected ranges and fixed versions before updating.

Analysis pending evidence review

HOL Guard separates source facts from reviewed analysis. See the methodology.

Published Aug 20, 2026Updated Sep 1, 2026Source checked Oct 4, 2026First seen by HOL Aug 20, 2026Material review Sep 1, 2026
Upstream Advisory

Key facts

Risk
Medium · CVSS 5.1
Exploitation
Not marked as known exploited
Affected software
7 mapped packages or products
Fix availability
Available

Why this deserves its current priority

CVSS is 5.1. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.

Analysis status

Analysis pending evidence review

Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.

Affected scope and exposure questions

The current feed maps n8n-io/n8n (generic), n8n-io/n8n (generic), n8n-io/n8n (generic), n8n-io/n8n (generic) and additional mapped packages. Check affected ranges and fixed versions before updating.

Affected products and reported versions
ProductAffected versionsFixed versions
cpe:2.3:a:n8n:n8n:2.34.0:*:*:*:*:node.js:*:*Not reportedNot reported
cpe:2.3:a:n8n:n8n:*:*:*:*:*:node.js:*:*Not reportedNot reported
Mapped affected packages and fixed versions
PackageAffected rangeFixed version
n8n-io/n8ngeneric>=0 <2.34.12.34.1
n8n-io/n8ngeneric>=0 <2.33.42.33.4
n8n-io/n8ngeneric>=0 <1.123.691.123.69
n8n-io/n8ngeneric>=2.34.0 <2.34.12.34.1
n8n-io/n8ngeneric>=2.0.0 <2.33.42.33.4

Recommended response

  1. 1Check inventory. Check lockfiles and deployed manifests for n8n-io/n8n, n8n-io/n8n, n8n-io/n8n.
  2. 2Review the reported fix. Update n8n-io/n8n to 2.34.1; n8n-io/n8n to 2.33.4; n8n-io/n8n to 1.123.69; n8n-io/n8n to 2.34.1; n8n-io/n8n to 2.33.4 if you use the affected versions. Test the change in a non-production environment first.

Evidence timeline and material changes

  1. Published upstream

    Aug 20, 2026

    Evidence: source:cvelist:source_dates:source-dates:record

  2. Source modified

    Sep 1, 2026

    Evidence: source:cvelist:source_dates:source-dates:record

  3. First seen by HOL

    Aug 20, 2026

Sources and claim methodology

  • GitHub security advisorygithub.com
  • Source referencevulncheck.com
Upstream source description

n8n before 1.123.69, 2.x before 2.33.4, and 2.x before 2.34.1 contain an allowed-domains bypass in the GraphQL node. When the node's Authentication parameter is set to expression mode, every authentication-gated credential selector is treated as active; if two credentials of different types are attached, the node enforces the allowed-domains policy of only the first credential while still attaching material from both. An authenticated user with workflow-authoring rights can thereby send a domain-restricted credential to an attacker-controlled endpoint, exfiltrating it with the leaked credential's permissions.

Quoted source text, attributed separately from HOL analysis.

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Record context

Vulnerability class
Missing Auth
EPSS
Not reported
CWE IDs
CWE-639
Source
CVE List V5
Source checked
Oct 4, 2026
References
2 linked sources
Open source record