{"id":"CVE-2026-54308","aliases":["EUVD-2026-38473","GHSA-jvc7-762p-3743","ROOT-APP-NPM-CVE-2026-54308"],"status":"published","title":"n8n: Missing Token Validation on Microsoft Agent 365 Trigger Node","description":"n8n is an open source workflow automation platform. Prior to 2.25.7 and 2.26.2, the MicrosoftAgent365Trigger and StripeTrigger node did not validate that inbound requests. As a result, an unauthenticated attacker who knows the webhook URL could submit a forged payload and cause the workflow to execute with attacker-controlled data. This vulnerability is fixed in 2.25.7 and 2.26.2.","severity":{"version":"4.0","score":6.3,"vector":"CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:L/VA:N/SC:L/SI:L/SA:N","level":"medium","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-11","score":0.00299,"percentile":0.22859,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-290"],"published":"2026-06-16T19:00:13Z","modified":"2026-10-28T02:30:37Z","fixes":[{"ecosystem":"npm","package":"n8n","fixed_in":["2.26.2","2.25.7"],"sources":["ghsa","osv"]},{"ecosystem":"Root:npm","package":"n8n","fixed_in":["2.19.3-aikido.7","2.19.3-aikido.4","2.19.3-aikido.5","2.19.3-aikido.6","2.19.3-aikido.8","2.19.3-aikido.9","2.19.3-aikido.10","2.19.3-aikido.11","2.19.3-aikido.12","2.19.3-aikido.13","2.19.3-aikido.14","2.19.3-aikido.15"],"sources":["osv"]},{"ecosystem":"Root:npm","package":"@rootio/n8n","fixed_in":["2.19.3-root.io.7","2.19.3-root.io.4","2.19.3-root.io.5","2.19.3-root.io.6","2.19.3-root.io.8","2.19.3-root.io.9","2.19.3-root.io.10","2.19.3-root.io.11","2.19.3-root.io.12","2.19.3-root.io.13","2.19.3-root.io.14","2.19.3-root.io.15"],"sources":["osv"]}],"affected":[{"source":"ghsa","ecosystem":"npm","package":"n8n","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"2.26.0"},{"fixed":"2.26.2"}]}]},{"source":"ghsa","ecosystem":"npm","package":"n8n","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.25.7"}]}]},{"source":"osv","ecosystem":"npm","package":"n8n","ranges":[{"type":"SEMVER","events":[{"introduced":"2.26.0"},{"fixed":"2.26.2"}]}]},{"source":"osv","ecosystem":"npm","package":"n8n","ranges":[{"type":"SEMVER","events":[{"introduced":"0"},{"fixed":"2.25.7"}]}]},{"source":"osv","ecosystem":"Root:npm","package":"n8n","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.19.3-aikido.7"},{"fixed":"2.19.3-aikido.4"},{"fixed":"2.19.3-aikido.5"},{"fixed":"2.19.3-aikido.6"},{"fixed":"2.19.3-aikido.8"},{"fixed":"2.19.3-aikido.9"},{"fixed":"2.19.3-aikido.10"},{"fixed":"2.19.3-aikido.11"},{"fixed":"2.19.3-aikido.12"},{"fixed":"2.19.3-aikido.13"},{"fixed":"2.19.3-aikido.14"},{"fixed":"2.19.3-aikido.15"}]}]},{"source":"osv","ecosystem":"Root:npm","package":"@rootio/n8n","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.19.3-root.io.7"},{"fixed":"2.19.3-root.io.4"},{"fixed":"2.19.3-root.io.5"},{"fixed":"2.19.3-root.io.6"},{"fixed":"2.19.3-root.io.8"},{"fixed":"2.19.3-root.io.9"},{"fixed":"2.19.3-root.io.10"},{"fixed":"2.19.3-root.io.11"},{"fixed":"2.19.3-root.io.12"},{"fixed":"2.19.3-root.io.13"},{"fixed":"2.19.3-root.io.14"},{"fixed":"2.19.3-root.io.15"}]}]}],"products":[{"vendor":"n8n","product":"n8n"},{"vendor":"n8n-io","product":"n8n"}],"references":[{"url":"https://github.com/n8n-io/n8n/security/advisories/GHSA-jvc7-762p-3743","tags":["x_refsource_CONFIRM","Mitigation","Vendor Advisory","advisory","web"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-54308","tags":["advisory"]},{"url":"https://github.com/advisories/GHSA-jvc7-762p-3743"},{"url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/54xxx/CVE-2026-54308.json","tags":["advisory"]},{"url":"https://github.com/n8n-io/n8n","tags":["package"]}],"sources":{"cve":[{"id":"CVE-2026-54308","title":"n8n: Missing Token Validation on Microsoft Agent 365 Trigger Node","description":"n8n is an open source workflow automation platform. Prior to 2.25.7 and 2.26.2, the MicrosoftAgent365Trigger and StripeTrigger node did not validate that inbound requests. As a result, an unauthenticated attacker who knows the webhook URL could submit a forged payload and cause the workflow to execute with attacker-controlled data. This vulnerability is fixed in 2.25.7 and 2.26.2.","status":"published","published":"2026-06-23T15:42:39.342Z","modified":"2026-06-24T13:59:08.481Z","cvss":[{"version":"4.0","score":6.3,"vector":"CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:L/VA:N/SC:L/SI:L/SA:N","level":"medium","assessor":"cna"}],"cwes":["CWE-290"],"updated_at":"2026-11-02T13:38:09.774038Z"}],"euvd":[{"id":"EUVD-2026-38473","description":"n8n is an open source workflow automation platform. Prior to 2.25.7 and 2.26.2, the MicrosoftAgent365Trigger and StripeTrigger node did not validate that inbound requests. As a result, an unauthenticated attacker who knows the webhook URL could submit a forged payload and cause the workflow to execute with attacker-controlled data. This vulnerability is fixed in 2.25.7 and 2.26.2.","status":"published","published":"2026-06-23T15:42:39Z","modified":"2026-06-24T13:59:08Z","cvss":[{"version":"4.0","score":6.3,"vector":"CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:L/VA:N/SC:L/SI:L/SA:N","level":"medium"}],"updated_at":"2026-11-02T18:20:30.642628Z"}],"ghsa":[{"id":"GHSA-jvc7-762p-3743","title":"n8n: Missing Token Validation on Microsoft Agent 365 Trigger and Stripe Nodes","description":"## Impact\nThe `MicrosoftAgent365Trigger` and `StripeTrigger` node did not validate that inbound requests. As a result, an unauthenticated attacker who knows the webhook URL could submit a forged payload and cause the workflow to execute with attacker-controlled data.\n\n## Patches\nThe issue has been fixed in n8n versions 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- Deactivate any workflows using the Microsoft Agent 365 Trigger node or Stripe Trigger node until the instance can be upgraded.\n- Restrict network access to the n8n webhook endpoint to trusted sources only.\n\nThese workarounds do not fully remediate the risk and should only be used as short-term mitigation measures.","status":"published","published":"2026-06-16T19:00:13Z","modified":"2026-07-20T13:43:49Z","cvss":[{"version":"4.0","score":6.3,"vector":"CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:L/VA:N/SC:L/SI:L/SA:N","level":"medium"},{"version":"3.1","score":7.2,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N","level":"high"}],"cwes":["CWE-290"],"updated_at":"2026-11-02T14:40:46.257074Z"}],"nvd":[{"id":"CVE-2026-54308","description":"n8n is an open source workflow automation platform. Prior to 2.25.7 and 2.26.2, the MicrosoftAgent365Trigger and StripeTrigger node did not validate that inbound requests. As a result, an unauthenticated attacker who knows the webhook URL could submit a forged payload and cause the workflow to execute with attacker-controlled data. This vulnerability is fixed in 2.25.7 and 2.26.2.","status":"published","published":"2026-06-23T17:17:07.14Z","modified":"2026-10-25T23:10:00.167Z","cvss":[{"version":"4.0","score":6.3,"vector":"CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:L/VA:N/SC:L/SI:L/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X","level":"medium","assessor":"secondary"},{"version":"3.1","score":7.2,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N","level":"high","assessor":"primary"}],"cwes":["CWE-290"],"updated_at":"2026-11-02T14:12:25.288279Z"}],"osv":[{"id":"CVE-2026-54308","title":"n8n: Missing Token Validation on Microsoft Agent 365 Trigger Node","description":"n8n is an open source workflow automation platform. Prior to 2.25.7 and 2.26.2, the MicrosoftAgent365Trigger and StripeTrigger node did not validate that inbound requests. As a result, an unauthenticated attacker who knows the webhook URL could submit a forged payload and cause the workflow to execute with attacker-controlled data. This vulnerability is fixed in 2.25.7 and 2.26.2.","status":"published","published":"2026-06-23T15:42:39.342Z","modified":"2026-10-28T02:30:37.967266167Z","cvss":[{"version":"4.0","score":6.3,"vector":"CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:L/VA:N/SC:L/SI:L/SA:N","level":"medium"}],"cwes":["CWE-290"],"updated_at":"2026-11-02T15:45:10.818486Z"},{"id":"GHSA-jvc7-762p-3743","title":"n8n: Missing Token Validation on Microsoft Agent 365 Trigger and Stripe Nodes","description":"## Impact\nThe `MicrosoftAgent365Trigger` and `StripeTrigger` node did not validate that inbound requests. As a result, an unauthenticated attacker who knows the webhook URL could submit a forged payload and cause the workflow to execute with attacker-controlled data.\n\n## Patches\nThe issue has been fixed in n8n versions 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- Deactivate any workflows using the Microsoft Agent 365 Trigger node or Stripe Trigger node until the instance can be upgraded.\n- Restrict network access to the n8n webhook endpoint to trusted sources only.\n\nThese workarounds do not fully remediate the risk and should only be used as short-term mitigation measures.","status":"published","published":"2026-06-16T19:00:13Z","modified":"2026-07-20T14:00:25.67733903Z","cvss":[{"version":"3.1","score":7.2,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N","level":"high"},{"version":"4.0","score":6.3,"vector":"CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:L/VA:N/SC:L/SI:L/SA:N","level":"medium"}],"cwes":["CWE-290"],"updated_at":"2026-11-02T15:46:51.10002Z"},{"id":"ROOT-APP-NPM-CVE-2026-54308","title":"CVE-2026-54308 in n8n - Patched by Root","description":"Root has patched CVE-2026-54308 in the n8n package for Root:npm. Multiple fixed versions available.","status":"published","published":"2026-10-06T03:42:47Z","modified":"2026-10-06T04:15:05.234651358Z","updated_at":"2026-11-02T15:53:27.649662Z"}]}}