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.
{
"cna_assigner": "GitHub_M",
"cwe_ids": [
"CWE-347"
],
"osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/86xxx/CVE-2026-86080.json"
}{
"extracted_events": [
{
"introduced": "2.38.0"
},
{
"fixed": "2.38.2"
},
{
"introduced": "2.0.0"
},
{
"fixed": "2.37.7"
},
{
"introduced": "0"
},
{
"fixed": "1.123.76"
}
],
"source": "AFFECTED_FIELD"
}