{
    "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"
                }
            }
        ]
    }
}