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Back to active CVEs
Medium · CVSS 0.0CVE-2026-86080GHSA-5M98-CGCR-XX3Q

n8n: GitHub Trigger 422 Reuse Path Skips Webhook Secret Storage, Causing Signature Verification to Fail-OpenCVE-2026-86080

Answer in brief

CVE-2026-86080 records a Medium severity (CVSS 0.0) vulnerability in n8n: GitHub Trigger 422 Reuse Path Skips Webhook Secret Storage, Causing Signature Verification to Fail-Open. The current sources do not mark it as known exploited. The current feed maps n8n-io/n8n (generic), n8n (npm), n8n (npm), n8n (npm). Check affected ranges and fixed versions before updating.

Analysis pending evidence review

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

Published Sep 8, 2026Updated Sep 11, 2026Source checked Oct 25, 2026First seen by HOL Sep 8, 2026Material review Sep 11, 2026
Upstream Advisory

Record context

Vulnerability class
Secret Exfiltration
EPSS
Not reported
CWE IDs
CWE-347
Source
CVE List V5
Source checked
Oct 25, 2026
References
6 linked sources
Open source record

Key facts

Risk
Medium · CVSS 0.0
Exploitation
Not marked as known exploited
Affected software
5 mapped packages or products
Fix availability
Available

Why this deserves its current priority

CVSS is 0.0. 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 (npm), n8n (npm), n8n (npm). Check affected ranges and fixed versions before updating.

Affected products and reported versions
ProductAffected versionsFixed versions
cpe:2.3:a:n8n:n8n:*:*:*:*:*:node.js:*:*Not reportedNot reported
Mapped affected packages and fixed versions
PackageAffected rangeFixed version
n8n-io/n8ngeneric>= 2.38.0, < 2.38.2 || >= 2.0.0, < 2.37.7 || < 1.123.76Not reported
n8nnpm<1.123.761.123.76
n8nnpm>=2.38.0,<2.38.22.38.2
n8nnpm>=2.0.0,<2.37.72.37.7

Recommended response

  1. 1Check inventory. Check lockfiles and deployed manifests for n8n-io/n8n, n8n, n8n.
  2. 2Review the reported fix. Update n8n to 1.123.76; n8n to 2.38.2; n8n to 2.37.7 if you use the affected versions. Test the change in a non-production environment first.

Evidence timeline and material changes

  1. Published upstream

    Sep 8, 2026

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

  2. Source modified

    Sep 11, 2026

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

  3. First seen by HOL

    Sep 8, 2026

Sources and claim methodology

  • GitHub security advisorygithub.com
  • GitHub security advisorygithub.com
  • GitHub security advisorygithub.com
  • GitHub security advisorygithub.com
  • GitHub security advisorygithub.com
  • NVD vulnerability recordnvd.nist.gov
Upstream source description

n8n is an open source workflow automation platform. Prior to 1.123.76, 2.37.7, and 2.38.2, the GitHub Trigger generated a webhook secret but discarded it when GitHub returned HTTP 422 and the node reused an existing webhook. Workflow static data then retained webhookId without webhookSecret, and X-Hub-Signature-256 verification accepted deliveries without a stored secret. The affected logic includes packages/nodes-base/nodes/Github/GithubTriggerHelpers.ts and the 422 webhook reuse path. This issue is fixed in versions 1.123.76, 2.37.7 and 2.38.2.

Quoted source text, attributed separately from HOL analysis.