{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-86080","assignerOrgId":"a0819718-46f1-4df5-94e2-005712e83aaa","state":"PUBLISHED","assignerShortName":"GitHub_M","dateReserved":"2026-09-04T19:34:03.100Z","datePublished":"2026-09-08T21:25:48.009Z","dateUpdated":"2026-09-09T13:16:31.787Z"},"containers":{"cna":{"title":"n8n: GitHub Trigger 422 Reuse Path Skips Webhook Secret Storage, Causing Signature Verification to Fail-Open","problemTypes":[{"descriptions":[{"cweId":"CWE-347","lang":"en","description":"CWE-347: Improper Verification of Cryptographic Signature","type":"CWE"}]}],"metrics":[{"cvssV4_0":{"attackVector":"NETWORK","attackComplexity":"LOW","attackRequirements":"PRESENT","privilegesRequired":"NONE","userInteraction":"NONE","vulnConfidentialityImpact":"NONE","vulnIntegrityImpact":"LOW","vulnAvailabilityImpact":"NONE","subConfidentialityImpact":"NONE","subIntegrityImpact":"NONE","subAvailabilityImpact":"NONE","baseScore":6.3,"baseSeverity":"MEDIUM","vectorString":"CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N","version":"4.0"}}],"references":[{"name":"https://github.com/n8n-io/n8n/security/advisories/GHSA-5m98-cgcr-xx3q","tags":["x_refsource_CONFIRM"],"url":"https://github.com/n8n-io/n8n/security/advisories/GHSA-5m98-cgcr-xx3q"},{"name":"https://github.com/n8n-io/n8n/releases/tag/n8n@1.123.76","tags":["x_refsource_MISC"],"url":"https://github.com/n8n-io/n8n/releases/tag/n8n@1.123.76"},{"name":"https://github.com/n8n-io/n8n/releases/tag/n8n@2.37.7","tags":["x_refsource_MISC"],"url":"https://github.com/n8n-io/n8n/releases/tag/n8n@2.37.7"},{"name":"https://github.com/n8n-io/n8n/releases/tag/n8n@2.38.2","tags":["x_refsource_MISC"],"url":"https://github.com/n8n-io/n8n/releases/tag/n8n@2.38.2"}],"affected":[{"vendor":"n8n-io","product":"n8n","versions":[{"version":">= 2.38.0, < 2.38.2","status":"affected"},{"version":">= 2.0.0, < 2.37.7","status":"affected"},{"version":"< 1.123.76","status":"affected"}]}],"providerMetadata":{"orgId":"a0819718-46f1-4df5-94e2-005712e83aaa","shortName":"GitHub_M","dateUpdated":"2026-09-08T21:25:48.009Z"},"descriptions":[{"lang":"en","value":"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."}],"source":{"advisory":"GHSA-5m98-cgcr-xx3q","discovery":"UNKNOWN"}},"adp":[{"metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-09-09T13:16:22.812821Z","id":"CVE-2026-86080","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"title":"CISA ADP Vulnrichment","providerMetadata":{"orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","shortName":"CISA-ADP","dateUpdated":"2026-09-09T13:16:31.787Z"}}]}}