{"schema":"threatline.record/2","record":{"id":"CVE-2026-118679","aliases":["GHSA-3c3p-5959-3ghr"],"summary":"n8n before 1.123.83, 2.41.4, and 2.42.1 Slack Token Exfiltration via Slack Trigger","details":"n8n before 1.123.83, 2.41.4, and 2.42.1 contains a server-side request forgery vulnerability in the Slack Trigger webhook that allows unauthenticated attackers to exfiltrate Slack tokens by bypassing signature verification when no signing secret is set. Attackers who know the webhook URL can name a file to download, causing the node to send the workspace access token to an attacker host and return the response.","categories":["Frameworks"],"product":"n8n","vendor":"n8n-io","ecosystem":null,"affected_ranges":[{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-118679","source_modified_at":"2026-10-28T18:59:51.136Z","fetched_at":"2026-10-28T20:58:01.013507Z","product":"n8n","vendor":"n8n-io","versions":[{"version":"0","status":"affected","versionType":"semver","lessThan":"1.123.83"},{"version":"1.123.83","status":"unaffected","versionType":"semver"}],"defaultStatus":"unaffected"},{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-118679","source_modified_at":"2026-10-28T18:59:51.136Z","fetched_at":"2026-10-28T20:58:01.013507Z","product":"n8n","vendor":"n8n-io","versions":[{"version":"2.42.0","status":"affected","versionType":"semver","lessThan":"2.42.1"},{"version":"2.42.1","status":"unaffected","versionType":"semver"}],"defaultStatus":"unaffected"},{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-118679","source_modified_at":"2026-10-28T18:59:51.136Z","fetched_at":"2026-10-28T20:58:01.013507Z","product":"n8n","vendor":"n8n-io","versions":[{"version":"2.0.0","status":"affected","versionType":"semver","lessThan":"2.41.4"},{"version":"2.41.4","status":"unaffected","versionType":"semver"}],"defaultStatus":"unaffected"}],"fixed_versions":[{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-118679","source_modified_at":"2026-10-28T18:59:51.136Z","fetched_at":"2026-10-28T20:58:01.013507Z","package":{"name":"n8n","ecosystem":null},"version":"1.123.83","basis":"first unaffected version stated in the CVE record"},{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-118679","source_modified_at":"2026-10-28T18:59:51.136Z","fetched_at":"2026-10-28T20:58:01.013507Z","package":{"name":"n8n","ecosystem":null},"version":"2.42.1","basis":"first unaffected version stated in the CVE record"},{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-118679","source_modified_at":"2026-10-28T18:59:51.136Z","fetched_at":"2026-10-28T20:58:01.013507Z","package":{"name":"n8n","ecosystem":null},"version":"2.41.4","basis":"first unaffected version stated in the CVE record"}],"cvss":6.9,"severity":"Medium","kev":{"listed":false},"epss":{"probability":null,"percentile":null,"score_date":null},"published_at":"2026-10-28T18:59:51.136Z","modified_at":"2026-10-28T18:59:51.136Z","provenance":[{"source":"CVE List","url":"https://www.cve.org/CVERecord?id=CVE-2026-118679","fetched_at":"2026-10-28T20:58:01.013507Z","source_modified_at":"2026-10-28T18:59:51.136Z"}],"sources":["CVE List"],"references":[{"source":"CVE List","url":"https://github.com/n8n-io/n8n/security/advisories/GHSA-3c3p-5959-3ghr","tags":["vendor-advisory"]},{"source":"CVE List","url":"https://www.vulncheck.com/advisories/n8n-before-1.123.83-2.41.4-and-2.42.1-slack-token-exfiltration-via-slack-trigger","tags":["third-party-advisory"]}],"locations":[],"motoko_assessment":{"status":"requires_architecture_review","automatic_remediation":false},"cve_state":"PUBLISHED","cvss_source":"CVE List","classification":{"method":"product-first software-layer rules","rules_version":"2.1","matched_on":"product","confidence":"heuristic","reviewed":false},"change_timestamp":"2026-10-28T18:59:51.136Z","content_hash":"9de23a1d8c9817d79d2b389298d38b4e9ab88185df494382ca58c450cb6a1f54"}}