CVE-2026-86080Medium· 5.3▾ Sunlitn8n 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 sta…
▾ Sunlit zone — Low / medium · no exploitation signal
impact 29.2 · likelihood 0 · exploitation 0
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Stakeholder-Specific Vulnerability Categorization from CISA's ADP record at CVE.org: whether exploitation is observed, whether an attack can be automated, and how much of the system is at stake.
Exploit-prediction probability, daily snapshots since Sep 9.
Disclosure to exploitation, from the record and what we observed since indexing it.
Disclosed via NVD
0.2%
Last analysed / modified upstream
5.3 → 6.3
6.3 → 5.3
5.3 → 6.3
6.3 → 5.3
5.3 → 6.3
6.3 → 5.3
5.3 → 6.3
6.3 → 5.3
5.3 → 6.3
6.3 → 5.3
5.3 → 6.3
6.3 → 5.3
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.
n8n < 1.123.76n8n >= 2.0.0, < 2.37.7n8n >= 2.38.0, < 2.38.2Upgrade past the affected range:
n8n 2.38.2Affected packages:
n8n < 1.123.76n8n >= 2.38.0, < 2.38.2n8n >= 2.0.0, < 2.37.7Patched in:
n8n 1.123.76n8n 2.38.2n8n 2.37.7Field changes observed since this record was first indexed.
Connected by shared product, vendor, weakness, or advisory.
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