CVE-2026-54308
n8n: Missing Token Validation on Microsoft Agent 365 Trigger Node
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.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- None
- User interaction
- None
What an attacker can affect
- Confidentiality
- Low
- Integrity
- Low
- Availability
- None
Exploit likelihood
What each source reports
CVE List Score used
n8n: Missing Token Validation on Microsoft Agent 365 Trigger Node
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.
- Record
CVE-2026-54308- CVSS 4.0
- 6.3 Medium
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 - Weakness
- CWE-290
- Updated
- 2026-11-02
EUVDEUVD-2026-38473
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.
- Record
EUVD-2026-38473- CVSS 4.0
- 6.3 Medium
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 - Updated
- 2026-11-02
GitHub AdvisoriesGHSA-jvc7-762p-3743
n8n: Missing Token Validation on Microsoft Agent 365 Trigger and Stripe Nodes
Impact
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.
Patches
The 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.
Workarounds
If upgrading is not immediately possible, administrators should consider the following temporary mitigations:
- Deactivate any workflows using the Microsoft Agent 365 Trigger node or Stripe Trigger node until the instance can be upgraded.
- Restrict network access to the n8n webhook endpoint to trusted sources only.
These workarounds do not fully remediate the risk and should only be used as short-term mitigation measures.
- Record
GHSA-jvc7-762p-3743- CVSS 4.0
- 6.3 Medium
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 - CVSS 3.1
- 7.2 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N - Weakness
- CWE-290
- Updated
- 2026-11-02
NVD
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.
- Record
CVE-2026-54308- CVSS 4.0
- 6.3 Medium
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 - CVSS 3.1
- 7.2 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N - Weakness
- CWE-290
- Updated
- 2026-11-02
OSV
n8n: Missing Token Validation on Microsoft Agent 365 Trigger Node
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.
- Record
CVE-2026-54308- CVSS 4.0
- 6.3 Medium
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 - Weakness
- CWE-290
- Updated
- 2026-11-02
OSVGHSA-jvc7-762p-3743
n8n: Missing Token Validation on Microsoft Agent 365 Trigger and Stripe Nodes
Impact
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.
Patches
The 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.
Workarounds
If upgrading is not immediately possible, administrators should consider the following temporary mitigations:
- Deactivate any workflows using the Microsoft Agent 365 Trigger node or Stripe Trigger node until the instance can be upgraded.
- Restrict network access to the n8n webhook endpoint to trusted sources only.
These workarounds do not fully remediate the risk and should only be used as short-term mitigation measures.
- Record
GHSA-jvc7-762p-3743- CVSS 4.0
- 6.3 Medium
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 - CVSS 3.1
- 7.2 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N - Weakness
- CWE-290
- Updated
- 2026-11-02
OSVROOT-APP-NPM-CVE-2026-54308 No score
CVE-2026-54308 in n8n - Patched by Root
Root has patched CVE-2026-54308 in the n8n package for Root:npm. Multiple fixed versions available.
- Record
ROOT-APP-NPM-CVE-2026-54308- Updated
- 2026-11-02
Affected products
Affected packages
| Package | Affected | Fixed |
|---|---|---|
n8nnpm |
2.26.0 up to 2.26.2 | 2.26.2 |
n8nnpm |
before 2.25.7 | 2.25.7 |
n8nRoot:npm |
before 2.19.3-aikido.7 | 2.19.3-aikido.72.19.3-aikido.42.19.3-aikido.52.19.3-aikido.62.19.3-aikido.82.19.3-aikido.92.19.3-aikido.102.19.3-aikido.112.19.3-aikido.122.19.3-aikido.132.19.3-aikido.142.19.3-aikido.15 |
@rootio/n8nRoot:npm |
before 2.19.3-root.io.7 | 2.19.3-root.io.72.19.3-root.io.42.19.3-root.io.52.19.3-root.io.62.19.3-root.io.82.19.3-root.io.92.19.3-root.io.102.19.3-root.io.112.19.3-root.io.122.19.3-root.io.132.19.3-root.io.142.19.3-root.io.15 |
History
| Recorded | Changed | Sources |
|---|---|---|
| first indexed | CVE List, EUVD, GitHub Advisories, NVD, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2026-54308 is a medium vulnerability (CVSS 6.3) in N8n, published June 16, 2026. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.30%, the 22nd percentile. Fixed in n8n 2.26.2.