{"id":"GHSA-42h7-m79w-wvg5","revision":"b367b21210f04bed9d76eb1515018500","records":[{"revision":"b367b21210f04bed9d76eb1515018500","observedAt":"2026-10-24T13:17:17.793+00:00","statement":{"source":"osv","id":"GHSA-42h7-m79w-wvg5","aliases":["CVE-2026-54302"],"title":"n8n: Stored XSS in Chat Trigger Node","description":"## Impact\nAn authenticated user with workflow edit access could inject arbitrary JavaScript into the Chat Trigger's generated page by setting a malicious `webhookId`. When a logged-in user visited the chat URL, the injected code executed in the n8n origin with that user's session privileges.\n\n## Patches\nThe issue has been fixed in n8n versions 1.123.55, 2.25.7, and 2.26.2. Users should upgrade to one of these versions or later to remediate the vulnerability.\n\n## Workarounds\nIf upgrading is not immediately possible, administrators should consider the following temporary mitigations:\n- Limit workflow creation and editing permissions to fully trusted users only.\n- Disable the Chat Trigger node by adding `@n8n/n8n-nodes-langchain.chatTrigger` to the `NODES_EXCLUDE` environment variable.\n\nThese workarounds do not fully remediate the risk and should only be used as short-term mitigation measures.","state":0,"publishedAt":"2026-06-16T22:39:32+00:00","modifiedAt":"2026-07-20T14:00:27.0941068+00:00","affected":[{"ecosystem":"npm","name":"n8n","ranges":[{"type":"SEMVER","events":[{"kind":"introduced","version":"0"},{"kind":"fixed","version":"1.123.55"}]}],"versions":[],"rawVersionEvidence":null},{"ecosystem":"npm","name":"n8n","ranges":[{"type":"SEMVER","events":[{"kind":"introduced","version":"2.26.0"},{"kind":"fixed","version":"2.26.2"}]}],"versions":[],"rawVersionEvidence":null},{"ecosystem":"npm","name":"n8n","ranges":[{"type":"SEMVER","events":[{"kind":"introduced","version":"2.0.0-rc.0"},{"kind":"fixed","version":"2.25.7"}]}],"versions":[],"rawVersionEvidence":null}],"metrics":[{"system":"CVSS_V3","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:L/A:N","score":null,"severity":null},{"system":"CVSS_V4","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:H/VI:L/VA:N/SC:N/SI:N/SA:N","score":null,"severity":null},{"system":"Publisher rating","vector":null,"score":null,"severity":"HIGH"}],"references":["https://github.com/n8n-io/n8n/security/advisories/GHSA-42h7-m79w-wvg5","https://nvd.nist.gov/vuln/detail/CVE-2026-54302","https://github.com/n8n-io/n8n"],"sourceUrl":"https://github.com/advisories/GHSA-42h7-m79w-wvg5","license":"GitHub Advisory Database · CC-BY-4.0","key":"osv:GHSA-42h7-m79w-wvg5","identifiers":["GHSA-42h7-m79w-wvg5","CVE-2026-54302"]},"retained":false,"historicalAffected":[]}],"coverage":[]}